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An examination of changes in psychological status across four phases of injury recovery and return to sport: A prospective weekly study of competitive athletes from acute care to return to sport Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-23 Alexis Ruffault, Marjorie Bernier, Leslie Podlog, Christophe Guegan
While ample research has shown that sport injuries are associated with poor psychological status, scant attention has been given to changes in injured athletes' psychological status over the full course of recovery and return to sport. The aim of the present study was to prospectively investigate potential changes in injured athletes' psychological status across four phases of recovery and return to
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Cardiac hemodynamics phenotypes and individual responses to training in coronary heart disease patients Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-23 Marine Kirsch, Damien Vitiello, Lukas‐Daniel Trachsel, Maxime Boidin, Julie Lalongé, Martin Juneau, Louis Bherer, Anil Nigam, Mathieu Gayda
BackgroundIn patients with coronary heart disease (CHD), individualized exercise training (ET) programs are strongly recommended to optimize peak oxygen uptake (O2peak) improvement and prognosis. However, the cardiac hemodynamic factors responsible for a positive response to training remain unclear. The aim of this study was to compare cardiac hemodynamic changes after an ET program in responder (R)
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Cover Image Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-23 Ying Gao, Qing‐Yang Li, Taija Finni, Arto J. Pesola
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Effects of gait retraining using minimalist shoes on the medial gastrocnemius muscle‐tendon unit behavior and dynamics during running Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-22 Liqin Deng, Boyi Dai, Xini Zhang, Songlin Xiao, Weijie Fu
The effects of a 12‐week gait retraining program on the adaptation of the medial gastrocnemius (MG) and muscle‐tendon unit (MTU) were investigated. 26 runners with a rearfoot strike pattern (RFS) were randomly assigned to one of two groups: gait retraining (GR) or control group (CON). MG ultrasound images, marker positions, and ground reaction forces (GRF) were collected twice during 9 km/h of treadmill
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No additive effect of creatine, caffeine, and sodium bicarbonate on intense exercise performance in endurance‐trained individuals Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-22 Lukas Moesgaard, Søren Jessen, Peter Møller Christensen, Jens Bangsbo, Morten Hostrup
BackgroundAthletes commonly use creatine, caffeine, and sodium bicarbonate for performance enhancement. While their isolated effects are well‐described, less is known about their potential additive effects.MethodsFollowing a baseline trial, we randomized 12 endurance‐trained males (age: 25 ± 5 years, VO2max: 56.7 ± 4.6 mL kg−1 min−1; mean ± SD) and 11 females (age: 25 ± 3 years, VO2max: 50.2 ± 3.4
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Enhanced muscle activity during interrupted sitting improves glycemic control in overweight and obese men Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-17 Ying Gao, Qing‐Yang Li, Taija Finni, Arto J. Pesola
The efficacy of interrupting prolonged sitting may be influenced by muscle activity patterns. This study examined the effects of interrupting prolonged sitting time with different muscle activity patterns on continuously monitored postprandial glycemic response. Eighteen overweight and obese men (21.0 ± 1.2 years; 28.8 ± 2.2 kg/m2) participated in this randomized four‐arm crossover study, including
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Individual and day‐to‐day differences in domain‐specific physical activity of 10‐ to 11‐year‐old children in Denmark—Measured using GPS and accelerometry Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-17 Anna Stage, Thea Toft Amholt, Jasper Schipperijn
ObjectivePhysical activity (PA) and the achievement of 60 min of moderate‐to‐physical‐activity daily is declining in school‐aged‐children, and effective strategies to increase PA is needed. We aimed to examine the individual and day‐to‐day distribution of PA on schooldays among children aged 10–11 in 4 domains—school, home, transport, and other.MethodsData were collected from August to September 2020
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First international consensus statement on sports psychiatry Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-13 Malte Christian Claussen, Alan Currie, Eugene Koh Boon Yau, Masaki Nishida, Vania Martínez, James Burger, Shane Creado, Alexander Schorb, Roberto Fernandes Nicola, Amrit Pattojoshi, Ranjit Menon, Ira Glick, Jim Whitehead, Carla Edwards, David Baron
Sports psychiatry is a young field of medicine and psychiatry that focuses on mental health among athletes, and sports and exercise within psychiatry and mental disorders. However, the development of sports psychiatry and its fields of activity vary from region to region and are not uniform yet. Sports psychiatry and the role of sports psychiatrists have also already been discussed in the field of
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Epidemiology, etiology and prevention of injuries in competitive ice speed skating—limited current evidence, multiple future priorities: A scoping review Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-13 Matthias Hendricks, Evert Verhagen, Alexander T. M. van de Water
Long‐track and short‐track ice speed skating are integral to the Winter Olympics. The state of evidence‐based injury prevention in these sports is unclear. Our goals were to summarize the current scientific knowledge, to determine the state of research, and to highlight future research areas for injury prevention in ice speed skating. We conducted a scoping review, searching all injury and injury prevention
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The effect of repeated concussions on clinical and neurocognitive symptom severity in different contact sports Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-13 Jennifer Glaser, Sarah Jaeckle, Thomas Beblo, Gerhard Mueller, Andreas M. Eidenmueller, Philipp Schulz, Ingo Schmehl, Witold Rogge, Karsten Hollander, Max Toepper, Andreas S. Gonschorek
IntroductionThe potential consequences of repeated concussions in sport are well documented. However, it remains unclear whether the cumulative impact of sports‐related concussions differs between different contact sports. Therefore, the aim of the current study was to investigate the cumulative effects of sports‐related concussions on clinical and neurocognitive health in different contact sports
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Response to Mr. Di Pietro Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-10 Bas van Hooren, Tjeu Souren, Bart Bongers
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Accuracy of respiratory gas variables from CPET systems during simulated and human exercise: The importance of methodological choices and data handling Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-10 Alberto Di Pietro
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Reference values for leg effort during incremental cycle ergometry in non‐trained healthy men and women, aged 19–85 Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-10 Abed A. Hijleh, Sophia Wang, Danilo C. Berton, Igor Neder‐Serafini, Sandra Vincent, Matthew James, Nicolle Domnik, Devin Phillips, Luiz E. Nery, Denis E. O'Donnell, J. Alberto Neder
Heightened sensation of leg effort contributes importantly to poor exercise tolerance in patient populations. We aim to provide a sex‐ and age‐adjusted frame of reference to judge symptom's normalcy across progressively higher exercise intensities during incremental exercise. Two‐hundred and seventy‐five non‐trained subjects (130 men) aged 19–85 prospectively underwent incremental cycle ergometry.
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Distal hamstrings tendons mechanical properties at rest and contraction using free‐hand 3‐D ultrasonography Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-10 Chrysostomos Sahinis, Eleftherios Kellis
Tendon properties impact human locomotion, influencing sports performance, and injury prevention. Hamstrings play a crucial role in sprinting, particularly the biceps femoris long head (BFlh), which is prone to frequent injuries. It remains uncertain if BFlh exhibits distinct mechanical properties compared to other hamstring muscles. This study utilized free‐hand three‐dimensional ultrasound to assess
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An integrative review of parent education approaches in sport: Considerations for program planning and evaluation Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-06 Fabrício João Milan, Camilla J. Knight, Lucas Machado de Oliveira, Vitor Ciampolini, Michel Milistetd
In recent years, there has been an increase in the delivery and evaluation of parent education programs within youth sport. Subsequently, some recent reviews of these programs have been conducted. However, one consistent issue across many of the programs and associated review papers is the lack of an appropriate evaluation framework to guide the planning or associated reporting of the outcomes of the
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Biceps femoris long head muscle and aponeurosis geometry in males with and without a history of hamstring strain injury Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-04 Stephanie L. Lazarczuk, Tyler J. Collings, Andrea H. Hams, Ryan G. Timmins, David A. Opar, Suzi Edwards, Anthony J. Shield, Rod S. Barrett, Matthew N. Bourne
ObjectivesHamstring strain injuries (HSIs) commonly affect the proximal biceps femoris long head (BFlh) musculotendinous junction. Biomechanical modeling suggests narrow proximal BFlh aponeuroses and large muscle‐to‐aponeurosis width ratios increase localized tissue strains and presumably risk of HSI. This study aimed to determine if BFlh muscle and proximal aponeurosis geometry differed between limbs
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Longitudinal associations of meeting the WHO physical activity guidelines and physical fitness, from preschool to childhood Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-04 Hanna Tigerstrand Grevnerts, Christine Delisle Nyström, Jairo Hidalgo Migueles, Marie Löf
There is a well‐established relationship between physical activity (PA) and physical fitness in children, being the latter an important marker for present and future health; however, there is still insufficient knowledge for the transition from the preschool age to early childhood. Therefore, this study in Swedish children aimed to investigate the estimated effect of meeting the aerobic component of
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Effects of high‐intensity interval training on depressive and anxiety symptoms in healthy individuals: A systematic review and meta‐analysis of randomized clinical trials Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-03 Jhonatan Wélington Pereira Gaia, Felipe Barreto Schuch, Rodrigo Weyll Ferreira, Edielen de Lima Souza, Verônica Moreira Souto Ferreira, Daniel Alvarez Pires
Although evidence regarding the effects of high‐intensity interval training (HIIT) on mental health has increased in recent years, there is still no consensus regarding the effects of HIIT on the symptoms of depression and anxiety in a healthy population. Therefore, this systematic review aimed to investigate the effects of HIIT on depressive and/or anxiety symptoms in healthy individuals. The following
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Peak fat oxidation, peak oxygen uptake, and running performance increase during pre‐season in sub‐elite male football players Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-03 Tue Rømer, Mikkel Thunestvedt Hansen, Kristine Kjær Lange, Mikkel Lundgren Petersen, Anders Petersen Ibh, Jeppe Panduro, Peter Krustrup, Flemming Dela, Jørn Wulff Helge
PurposeIn Football, the high‐intensity running bouts during matches are considered decisive. Interestingly, recent studies showed that peak fat oxidation rates (PFO) are higher in football players than other athletes. This study aimed to investigate whether PFO increases following a pre‐season. Secondarily, and due to COVID‐19, we investigated whether PFO is related to the physical performance in a
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Effects of far‐infrared radiation lamp therapy on recovery from a simulated soccer‐match in elite female soccer players Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-04-01 Wei‐Chin Tseng, Kazunori Nosaka, Tai‐Ying Chou, Glyn Howatson, Trevor C. Chen
We investigated the effects of far‐infrared radiation (FIR) lamp therapy on changes in muscle damage and performance parameters following six sets of 15‐min Loughborough intermittent shuttle test (LIST), a simulated soccer match. Twenty‐four elite female soccer players (20–24 y) were assigned into FIR or sham treatment group (n = 12/group). The participants received a 60‐min FIR or sham treatment (30
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Predicting adolescents' continuation in club sports: A prospective cohort study of the importance of personal and contextual motivational factors in five sports in Denmark Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-30 Glen Nielsen, Johan Michael Wikman, Paul R. Appleton, Peter Bentsen, Peter Elsborg
PurposeThe purpose of this prospective cohort study was to investigate the influence of types of motivation, basic psychological needs satisfaction and of a coach‐created motivational climate on continued participation in youth sports across types of sport, competitive levels, ages, and gender.MethodsParticipants were 7110 adolescent (age 12–20 years) members of leisure time club organized in basketball
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Psychosocial experiences of competitive rugby players on the “long, long journey” to recovery following ACL ruptures and reconstruction Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-29 Anel Borman, Wayne Derman, Heinrich Grobbelaar
Anterior Cruciate Ligament (ACL) injuries are serious and potentially career‐ending. Reconstruction surgery and extended rehabilitation typically follow, but some athletes never attain the same level of sport performance. The psychosocial experiences of athletes who sustain ACL injuries and their cognitive appraisal, emotional and behavioral responses to the injury, and reconstruction require further
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Effect of repeated prolonged exercise on liver fat content and visceral adipose tissue in well‐trained older men Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-28 Axel Illeris Poggi, Martin Winther Andreasen, Ronni Eg Sahl, Mikkel Thunestvedt Hansen, Tue Rømer, Jacob Frandsen, Frederik Hvid Linden, Erik Høgh‐Schmidt, Mikael Ploug Boesen, Sisse Rye Ostrowski, Steen Larsen, Flemming Dela, Jørn Wulff Helge
IntroductionLiver fat (LF) and visceral adipose tissue (VAT) content decreases with training, however, this has mainly been investigated in sedentary obese or healthy participants. The aim of this study was to investigate the effects of repeated prolonged exercise on LF and VAT content in well‐trained older men and to compare baseline LF and VAT content to recreationally active older men.MethodA group
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The effects of a combined physical activity and health education program on health knowledge and well‐being of socially vulnerable children Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-28 Trine K. Møller, Malte N. Larsen, Kristina Pfeffer, Sabrina Egelund Frydenlund, Nikos Ntoumanis, Peter Krustrup
The purpose of the present study was to evaluate the effects of the football‐based health education program “11 for Health” on health knowledge and well‐being in the setting of a 10‐week residential stay in a Danish charity home for socially vulnerable children. Six hundred and fourteen children participated in the study, of which 305 took part in the standard program plus “11 for Health” (SG+: 12
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Trends in adherence to the 24‐h movement guidelines among US adolescents from 2011 to 2019: Evidence from repeated cross‐sectional cycles of the Youth Risk Behavior Surveillance System Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-27 Sitong Chen, Denver Brown, Kate Parker, Eun‐Young Lee
BackgroundAdherence to the 24‐h movement guidelines is associated with various health benefits, but given the novelty of these integrative recommendations, little is known about year‐to‐year trends in guideline adherence in adolescents. This study investigated trends of adherence to the 24‐h movement guidelines among US adolescents.MethodsData from 2011 to 2019 cycles of the Youth Risk Behavior Surveillance
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Groin injuries in women's premier league football in Norway: A two‐season prospective cohort study describing clinical and imaging characteristics Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-27 Solveig Thorarinsdottir, Roar Amundsen, Arne Larmo, Roar Pedersen, Thor Einar Andersen, Roald Bahr, Merete Møller
ObjectiveTo describe the prevalence, incidence, and burden of groin injuries in the Norwegian women's premier football league and to describe their clinical and imaging characteristics.MethodsDuring the 2020 and 2021 seasons, players in the Norwegian women's premier league reported groin injuries weekly, using the Oslo Sports Trauma Research Centre Questionnaire on Health Problems (OSTRC‐H2). We calculated
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Beyond change scores: Employing an improved statistical approach to analyze the impact of entry fitness on physical performance during British Army basic training in men and women Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-27 Tessa D. Maroni, Andrew G. Siddall, Carla A. Rue, Sarah C. Needham‐Beck, Faye S. Walker, Julie P. Greeves, Sophie L. Wardle, Anne Fieldhouse, Stephen D. Myers, Sam D. Blacker
The aim was to use a robust statistical approach to examine whether physical fitness at entry influences performance changes between men and women undertaking British Army basic training (BT). Performance of 2 km run, seated medicine ball throw (MBT) and isometric mid‐thigh pull (MTP) were assessed at entry and completion of Standard Entry (SE), Junior Entry‐Short (JE‐Short), and Junior Entry‐Long
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Characterization of the in vivo transient responses of the femoral cartilage by means of quantitative ultrasound imaging techniques Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-27 Andrea Monte, Martino V. Franchi, Paola Zamparo
BackgroundQuantitative ultrasound (QUS) techniques are new diagnostic tools able to identify changes in structural and material properties of the investigated tissue. For the first time, we evaluated the capability of QUS techniques in determining the in vivo transient changes in knee joint cartilage after a stressful task.MethodsAn ultrasound scanner collecting B‐mode and radiofrequency data simultaneously
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Individual distribution of muscle hypertrophy among hamstring muscle heads: Adding muscle volume where you need is not so simple Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-22 A. Frouin, G. Le Sant, L. Barbier, E. Jacquemin, P. J. McNair, R. Ellis, A. Nordez, L. Lacourpaille
PurposeThe aim of this study was to determine whether a 9‐week resistance training program based on high load (HL) versus low load combined with blood flow restriction (LL‐BFR) induced a similar (i) distribution of muscle hypertrophy among hamstring heads (semimembranosus, SM; semitendinosus, ST; and biceps femoris long head, BF) and (ii) magnitude of tendon hypertrophy of ST, using a parallel randomized
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Differences in running technique between runners with better and poorer running economy and lower and higher milage: An artificial neural network approach Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-21 Bas Van Hooren, Rebecca Lennartz, Maartje Cox, Fabian Hoitz, Guy Plasqui, Kenneth Meijer
BackgroundPrior studies investigated selected discrete sagittal‐plane outcomes (e.g., peak knee flexion) in relation to running economy, hereby discarding the potential relevance of running technique parameters during noninvestigated phases of the gait cycle and in other movement planes.PurposeInvestigate which components of running technique distinguish groups of runners with better and poorer economy
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The International Olympic Committee framework on fairness, inclusion and nondiscrimination on the basis of gender identity and sex variations does not protect fairness for female athletes Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-21 Tommy R. Lundberg, Ross Tucker, Kerry McGawley, Alun G. Williams, Grégoire P. Millet, Øyvind Sandbakk, Glyn Howatson, Gregory A. Brown, Lara A. Carlson, Sarah Chantler, Mark A. Chen, Shane M. Heffernan, Neil Heron, Christopher Kirk, Marie H. Murphy, Noel Pollock, Jamie Pringle, Andrew Richardson, Jordan Santos‐Concejero, Georgina K. Stebbings, Ask Vest Christiansen, Stuart M. Phillips, Cathy Devine
The International Olympic Committee (IOC) recently published a framework on fairness, inclusion, and nondiscrimination on the basis of gender identity and sex variations. Although we appreciate the IOC's recognition of the role of sports science and medicine in policy development, we disagree with the assertion that the IOC framework is consistent with existing scientific and medical evidence and question
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Correction to Accuracy of respiratory gas variables, substrate, and energy use from 15 CPET systems during simulated and human exercise Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-19
Van Hooren B, Souren T, Bongers BC. Accuracy of respiratory gas variables, substrate, and energy use from 15 CPET systems during simulated and human exercise. Scand J Med Sci Sports. 2024;34(1):e14490. doi: 10.1111/sms.14490. Epub 2023 Sep 11. PMID: 37697640. In Table 1, the volume and CO2 measurements for PNOĒ were incorrectly labeled as using sensors from Sensiron. The brand of these sensors is however
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Meta‐analysis prediction intervals are under reported in sport and exercise medicine Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-19 David N. Borg, Franco M. Impellizzeri, Samantha J. Borg, Kate P. Hutchins, Ian B. Stewart, Tamara Jones, Brenton J. Baguley, Lucas B. R. Orssatto, Aaron J. E. Bach, John O. Osborne, Benjamin S. McMaster, Robert L. Buhmann, Joshua J. Bon, Adrian G. Barnett
AimPrediction intervals are a useful measure of uncertainty for meta‐analyses that capture the likely effect size of a new (similar) study based on the included studies. In comparison, confidence intervals reflect the uncertainty around the point estimate but provide an incomplete summary of the underlying heterogeneity in the meta‐analysis. This study aimed to estimate (i) the proportion of meta‐analysis
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Are the ground reaction forces altered by the curve and with the increasing sprinting velocity? Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-16 Benjamin Millot, Didier Pradon, Giuseppe Cecchelli, Paul Blache, Axelle Arnould, Daniel Dinu, Jean Slawinski
In 200‐ and 400‐m races, 58% of the total distance to cover is in the curve. In the curve, the sprinting performance is decreased in comparison to the straight. However, the reasons for this decreased performance is not well understood. Thus, the aim of this study was to identify the kinetic parameters underpinning the sprinting performance in the curve in comparison to the straight. Nineteen experienced‐to‐elite
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Minimal power required to ascend a flight of stairs versus actual power measured with body‐fixed sensors in adults aged 19–85 years Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-16 Lien Meulemans, Jan Seghers, Annabel Hoorelbeke, Tinne Van Dijck, Christophe Delecluse, Evelien Van Roie
A good stair‐climbing (SC) ability is crucial for independent living in older adults. A simple formula that estimates the mean power needed to ascend a flight of stairs in a predetermined time (i.e., total ascent duration) is easy to implement in practice, but lacks information on actual power values generated per step. The latter is possible with body‐fixed sensors. This study aimed at comparing both
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Influence of a 7‐day Transalpine Trail Run on cardiac biomarkers and myocardial function Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-14 Katrin Esefeld, Marisa Geisberger, Sophia Marie‐Theres Dinges, Johanna Hambrecht, Felix Stegmüller, Michael Rasper, Jonathan Nadjiri, Franz Roeschenthaler, Stefan Holdenrieder, Jürgen Scharhag, Martin Halle
Intense physical exercise is known to increase cardiac biomarkers; however, it is unclear, whether this phenomenon is physiological, or if it indicates myocardial tissue injury. The aim of our study was to investigate the effects of seven consecutive days of excessive endurance exercise on continuous assessment of cardiac biomarkers, function, and tissue injury. During a 7‐day trail‐running competition
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Post exercise hot water immersion and hot water immersion in isolation enhance vascular, blood marker, and perceptual responses when compared to exercise alone Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-12 Charles J. Steward, Mathew Hill, Campbell Menzies, Stephen J. Bailey, Mushidur Rahman, C. Douglas Thake, Christopher J. A. Pugh, Tom Cullen
Exercise and passive heating induce some similar vascular hemodynamic, circulating blood marker, and perceptual responses. However, it remains unknown whether post exercise hot water immersion can synergise exercise derived responses and if they differ from hot water immersion alone. This study investigated the acute responses to post moderate‐intensity exercise hot water immersion (EX+HWI) when compared
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Early morning sport scheduling is associated with poorer subjective sleep characteristics in British student‐athletes Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-09 Sandy M. B. Wilson, Martin I. Jones, Stephen B. Draper, John K. Parker
This study presents the sleep characteristics of British student‐athletes and examines the relationships between sport scheduling and time demands on sleep outcomes. Student‐athletes (n = 157, 51% male) completed the Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), and the Sleep Hygiene Index (SHI). Self‐reported sleep characteristics on weekdays and weekends, weekly frequencies
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Acute effects of caffeine supplementation on kinematics and kinetics of sprinting Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-09 Masahiro Horiuchi, Ryu Nagahara
We investigated the acute effects of caffeine supplementation (6 mg・kg−1) on 60‐m sprint performance and underlying components with a step‐to‐step ground reaction force measurement in 13 male sprinters. After the first round sprint as a control, caffeine supplementation‐induced improvement in 60‐m sprint times (7.811 s at the first versus 7.648 s at the second round, 2.05%) were greater compared with
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Improving duplex ultrasound methods for diagnosing functional popliteal artery entrapment syndrome Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-09 David W. Barrett, Joao Carreira, Frank L. Bowling, Leszek Wolowczyk, Steven K. Rogers
ObjectivesPopliteal artery entrapment syndrome (PAES) is a rare condition where musculoskeletal structures compress the popliteal artery (POPA) leading to vascular compromise. This study investigates the effect of dynamic plantar‐ and dorsi‐flexion loading on POPA hemodynamic parameters to develop a robust diagnostic ultrasound‐based protocol for diagnosing functional PAES.MethodsHealthy individuals
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The effect of long‐term soccer training on left ventricular structure and function in elite male youth soccer players Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-08 Viswanath B. Unnithan, Alexander Beaumont, Thomas Rowland, Keith George, Laura Stewart, Nicholas Sculthorpe, Rachel N. Lord, David L. Oxborough
AimsCardiac adaptations in elite, male adolescent youth soccer players have been demonstrated in relation to training status. The time course of these adaptations and the delineation of the influence of volatile growth phases from the training effect on these adaptations remain unclear. Consequently, the aims of the study were to evaluate the impact of 3 years of elite‐level soccer training on changes
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Performance of two metabolic carts for cardiopulmonary exercise testing (MetaLyzer 3B and Oxycon Pro) in different climatic conditions Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-08 Gil Bourgois, Patrick Mucci, Tjeu Souren, Jan G. Bourgois, Jan Boone, Alessandro L. Colosio
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Validity of spatiotemporal and ground reaction force estimates during resisted sprinting with a motorized loading device Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-06 Norihide Sugisaki, Hiroyasu Tsuchie, Yohei Takai, Kai Kobayashi, Takaya Yoshimoto, Hiroaki Kanehisa
We aimed to examine the validity of estimating spatiotemporal and ground reaction force (GRF) parameters during resisted sprinting using a robotic loading device (1080 Sprint). Twelve male athletes (age: 20.9 ± 2.2 years; height: 174.6 ± 4.2 cm; weight: 69.4 ± 6.1 kg; means ± SDs) performed maximal resisted sprinting with three different loads using the device. The step frequency and length and step‐averaged
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How do sports injury epidemiological outcomes vary depending on athletes' response rates to a weekly online questionnaire? An analysis of 39‐week follow‐up from 391 athletics (track and field) athletes Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-05 Pascal Edouard, Pierre‐Eddy Dandrieux, David Blanco, Jeanne Tondut, Joris Chapon, Laurent Navarro, Astrid Junge, Karsten Hollander
ObjectiveTo explore how sports injury epidemiological outcomes (i.e., prevalence, average prevalence, incidence, burden, and time to first injury) vary depending on the response rates to a weekly online self‐reported questionnaire for athletes.MethodsWeekly information on athletics injuries and exposure from 391 athletics (track and field) athletes was prospectively collected over 39 weeks (control
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What makes an athlete? A scoping review: Assessing the use of the word athlete with anterior cruciate ligament rehabilitation review studies. Is there a standard? Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-04 C. Byrne, M. Ward, S. Saeedi, E. Obuseh
The term athlete does not currently have an agreed definition or standardized use across the literature. We analyzed the use of the term “athlete” amongst review studies specific to Anterior Cruciate Ligament (ACL) rehabilitation to investigate if the term was justified in its use. A comprehensive review of a database was performed to identify review papers which used the term “athlete” in the title
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Ischemic preconditioning increases spinal excitability and voluntary activation during maximal plantar flexion contractions in men Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-02 Rogério Cruz, Artur Ferreira Tramontin, Anderson Souza Oliveira, Fabrizio Caputo, Benedito Sérgio Denadai, Camila Coelho Greco
The enigmatic benefits of acute limb ischemic preconditioning (IP) in enhancing muscle force and exercise performance have intrigued researchers. This study sought to unravel the underlying mechanisms, focusing on increased neural drive and the role of spinal excitability while excluding peripheral factors. Soleus Hoffmann (H)‐reflex /M‐wave recruitment curves and unpotentiated supramaximal responses
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The promoting physical activity in regional and remote cancer survivors (PPARCS) trial: Physical activity maintenance Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-03-01 Sarah J. Hardcastle, Chloe Maxwell‐Smith, Vinicius Cavalheri, Terry Boyle, Marta Leyton Román, Cameron Platell, Michael Levitt, Christobel Saunders, Frank Sardelic, Sophie Nightingale, Jacob McCormick, Craig Lynch, Paul A. Cohen, Max Bulsara, Dana Hince
IntroductionThe study examined whether increased physical activity (PA) in nonmetropolitan cancer survivors was maintained 12 weeks following the PPARCS intervention.MethodsPA outcomes were assessed using an accelerometer at baseline, end of the intervention, and at 24 weeks. Linear mixed models were used to examine between‐group changes in PA outcomes.ResultsThe increased moderate‐to‐vigorous PA (MVPA)
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Are trunk stability and endurance determinant factors for whole‐body dynamic balance in physically active young males? A multidimensional analysis Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-28 J. De Los Ríos‐Calonge, D. Barbado, A. Prat‐Luri, C. Juan‐Recio, J. R. Heredia‐Elvar, J. L. L. Elvira, F. J. Vera‐Garcia
ObjectivesDetermine if (a) a better trunk stability and endurance are associated with an improved whole‐body dynamic balance, and if (b) the assessment tests can be interchanged within each capability.MethodsSixty‐three physically active young males performed three trunk stability (i.e., the lumbopelvic stability, the unstable sitting and the sudden loading sitting tests), three trunk muscle endurance
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A qualitative analysis of Swedish sport psychology practitioners' experience of a continued professional development program Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-22 Johanna Belz, Göran Kenttä, Hayley E. McEwan, Jelena Muetstege, David Tod
Although sport psychology practitioners and researchers acknowledge the importance of continued professional development (CPD) for professional effectiveness and excellence, few studies have explored the influence of CPD activities on the practitioners' practice and thinking. This study examined qualified Swedish sport psychology practitioners' experiences of engaging in a CPD program and how it impacted
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Gait biomechanics do not differ between adolescents with and without patellofemoral pain Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-21 Natalie Mazzella, Danielle Trowell, Aaron Fox, Natalie Saunders, Bill Vicenzino, Jason Bonacci
ObjectivesTo determine if adolescents with patellofemoral pain exhibit different biomechanical characteristics to asymptomatic adolescents during walking and running.MethodsTwenty‐eight adolescents with patellofemoral pain (16 male, 12 female, mean [SD] age: 14.3 [1.7] years) and 24 asymptomatic adolescents (13 male, 11 female, mean [SD] age: 14.1 [1.6] years) participated. Participants walked and
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Are all hamstring injuries equal? A retrospective analysis of time to return to full training following BAMIC type ‘c’ and T‐junction injuries in professional men's rugby union Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-20 Fearghal Kerin, Stuart O'Flanagan, Joe Coyle, Darragh Curley, Garreth Farrell, Ulrik McCarthy Persson, Giuseppe De Vito, Eamonn Delahunt
We aimed to determine whether the anatomical location (intramuscular tendon or T‐Junction) of hamstring muscle injuries in professional men's rugby union associates with a prolonged time to return to full training and a higher rate of re‐injury/subsequent injury. We reviewed the medical records of an Irish professional rugby union club to identify hamstring muscle injuries incurred across five seasons
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A “test in-train out” program versus a “go home and walk” intervention for home-based exercise therapy in patients with peripheral artery disease: A randomized controlled trial Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-13 Fabio Manfredini, Luca Traina, Valentina Ficarra, Giorgio Gandolfi, Antonio Argentoni, Sofia Straudi, Vincenzo Gasbarro, Nicola Lamberti
In this single-blinded randomized controlled trial, we compared the “Test in-Train Out” structured home-based exercise program (TiTo-SHB) with the traditional “go home and walk” exercise intervention in people with peripheral artery disease (PAD).
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Anticipation of landing leg masks ankle inversion orientation deficits and peroneal insufficiency during jump landing in people with chronic ankle instability Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-15 Zongchen Hou, Wei Shen, Daniel T. P. Fong, Samantha L. Winter
Ankle inversion orientation and peroneal activation insufficiency may contribute to lateral ankle sprains during landing in chronic ankle instability (CAI); however, how anticipation alters these factors is neglected. This study aimed to assess the impact of anticipation on joint orientation and muscle activity during landing in individuals with CAI. Fifteen participants with CAI and 15 healthy participants
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Determining intracortical, corticospinal and alpha motoneurone excitability in athletes with patellar tendinopathy compared to asymptomatic controls Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-08 Patrick Vallance, Peter Malliaras, Bill Vicenzino, Dawson J. Kidgell
Lower capacity to generate knee extension maximal voluntary force (MVF) has been observed in individuals affected with patellar tendinopathy (PT) compared to asymptomatic controls. This MVF deficit is hypothesized to emanate from alterations in corticospinal excitability (CSE). The modulation of CSE is intricately linked to the excitability levels at multiple sites, encompassing neurones within the
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Dropout from exercise trials among cancer survivors—An individual patient data meta-analysis from the POLARIS study Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-09 Benedikte Western, Andreas Ivarsson, Ingvild Vistad, Ingrid Demmelmaier, Neil K. Aaronson, Gillian Radcliffe, Marc van Beurden, Martin Bohus, Kerry S. Courneya, Amanda J. Daley, Daniel A. Galvão, Rachel Garrod, Martine M. Goedendorp, Kathleen A. Griffith, Wim H. van Harten, Sandi C. Hayes, Fernando Herrero-Roman, Anouk E. Hiensch, Melinda L. Irwin, Erica James, Marlou-Floor Kenkhuis, Marie José Kersten
The number of randomized controlled trials (RCTs) investigating the effects of exercise among cancer survivors has increased in recent years; however, participants dropping out of the trials are rarely described. The objective of the present study was to assess which combinations of participant and exercise program characteristics were associated with dropout from the exercise arms of RCTs among cancer
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The influence of the perceived requirements of the next match and motivation on the mental fatigue of soccer players Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-09 A. Rubio-Morales, J. Díaz-García, L. D. Harper, T. García-Calvo
The high cognitive and/or emotional demands of competition can lead to a state of mental fatigue which has shown to be detrimental to soccer performance. However, there is a need to further understand the true mental demands of soccer players. The aim of the present study was to analyze the influence of motivation and the perceived requirements of the next match on mental fatigue perceived by soccer
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Adherence and potential factors of adherence to a resistance, coordination and endurance training in older retirement home residents over 6 months Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-09 Michael Weiß, Esther Mende, Nina Schaller, Helge Krusemark, Bianca Spanier, Otto Zelger, Jan Bischof, Bernhard Haller, Martin Halle, Monika Siegrist
High exercise adherence is a key factor for effective exercise programmes. However, little is known about predictors of exercise adherence to a multimodal machine-based training in older retirement home residents.
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Effects of anthropometrics, thrust, and drag on stroke kinematics and 100 m performance of young swimmers using path-analysis modeling Scand. J. Med. Sci. Sports (IF 4.1) Pub Date : 2024-02-07 Jorge E. Morais, Tiago M. Barbosa, Natalia A. Gomeñuka, Daniel A. Marinho
The aim of this study was to understand the interactions between anthropometric, kinetic, and kinematic variables and how they determine the 100 m freestyle performance in young swimmers. Twenty-five adolescent swimmers (15 male and 10 female, aged 15.75 ± 1.01 years) who regularly participated in regional and national competitions were recruited. The 100 m freestyle performance was chosen as the variable