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Local alternating heat and cold stimulation affects hemodynamics and oxygenation in fatigued muscle tissue and autonomic nervous activity: a single-arm interventional study J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-03-25 Tomonori Sawada, Hiroki Okawara, Daisuke Nakashima, Kentaro Aoki, Mira Namba, Shuhei Iwabuchi, Yoshinori Katsumata, Masaya Nakamura, Takeo Nagura
Local alternating heat and cold stimulation as an alternative to contrast bath may cause intermittent vasoconstriction and vasodilation, inducing a vascular pumping effect and consequently promoting increased tissue blood flow and oxygenation. This study aimed to examine the effects of local alternating heat and cold stimulation, using a wearable thermal device, on the hemodynamics of fatigued muscle
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Nutritional anthropology in the world J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-03-08 Stanley Ulijaszek
Nutritional anthropology is the study of human subsistence, diet and nutrition in comparative social and evolutionary perspective. Many factors influence the nutritional health and well-being of populations, including evolutionary, ecological, social, cultural and historical ones. Most usually, biocultural approaches are used in nutritional anthropology, incorporating methods and theory from social
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Correction: Venous dilation effect of hot towel (moist and dry heat) versus hot pack for peripheral intravenous catheterization: a quasi-experimental study J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-02-13 Kae Yasuda, Inaho Shishido, Michito Murayama, Sanae Kaga, Rika Yano
Correction: J Physiol Anthropol 42, 23 (2023) https://doi.org/10.1186/s40101-023-00340-5 Following publication of the original article [1], the authors reported errors in Table 4. For the p-values in the comparison of T1 (Baseline) and T3 (After tourniquet) for each condition, the p-values for Dry hot towel and Moist hot towel were switched. Incorrect: Dry hot towel, p = .194; Moist hot towel, p <
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Triglyceride-glucose index is capable of identifying metabolically obese, normal-weight older individuals J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-02-03 Bokun Kim, Keisuke Taniguchi, Tomonori Isobe, Sechang Oh
The concept of metabolically obese, normal weight (MONW) has emerged to describe individuals with a normal body mass index (BMI) who are at a relatively high risk of chronic diseases. However, BMI itself is a suboptimal index for the assessment of the health risks associated with visceral fat. The triglyceride-glucose (TyG) index is considered to be a reliable and cost-effective marker of insulin resistance
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The influence of the environment and lifestyle on myopia J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-01-31 Sayantan Biswas, Antonio El Kareh, Mariyem Qureshi, Deborah Mei Xuan Lee, Chen-Hsin Sun, Janice S.H. Lam, Seang-Mei Saw, Raymond P. Najjar
Myopia, commonly known as near-sightedness, has emerged as a global epidemic, impacting almost one in three individuals across the world. The increasing prevalence of myopia during early childhood has heightened the risk of developing high myopia and related sight-threatening eye conditions in adulthood. This surge in myopia rates, occurring within a relatively stable genetic framework, underscores
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Sleep and allergic diseases among young Chinese adults from the Singapore/Malaysia Cross-Sectional Genetic Epidemiology Study (SMCGES) cohort J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-01-30 Qi Yi Ambrose Wong, Jun Jie Lim, Jun Yan Ng, Yi Ying Eliza Lim, Yang Yie Sio, Fook Tim Chew
Sleep disruption has been shown to affect immune function and thus influence allergic disease manifestation. The specific effects of sleep on allergic diseases, however, are less well-established; hence, in a unique population of young Chinese adults, we investigated the association between sleep and allergic disease. Young Chinese adults recruited from Singapore in the Singapore/Malaysia Cross-Sectional
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Fructose-induced FGF21 secretion does not activate brown adipose tissue in Japanese young men: randomized cross-over and randomized controlled trials J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-01-04 Haruki Kataoka, Shinsuke Nirengi, Yuka Matsui, Hirokazu Taniguchi
Human brown adipose tissue (BAT) activity is associated with lower body fatness and favorable glucose metabolism. Previous studies reported that oral fructose loading induces postprandial fibroblast growth factor 21 (FGF21) secretion. FGF21 is a known inducer of adipose tissue thermogenesis; however, the effects of diet-induced FGF21 secretion on BAT thermogenesis remain to be elucidated. The effects
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Altered neurophysiological responses during empathy for pain in insomnia: evidence from an EEG study in non-clinical samples J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-01-03 Siyu Li, Meiheng He, Li Lin, Qingwei Chen, Taotao Ru, Guofu Zhou
This study aims to investigate the behavioral and neurophysiological changes accompanying the empathy for pain among individuals with insomnia in nonclinical samples, which has been scarcely explored in the existing literature despite the deleterious effects of sleep disturbance on social behavior, and interactions had been well-documented. Twenty-one individuals with insomnia in nonclinical samples
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Alleviation of acute stress response by black pepper aroma administration J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-01-02 E. A. Chayani Dilrukshi, Yuta Nishiyama, Kanetoshi Ito, Shusaku Nomura
Black pepper is one of the most popular spices globally. As black pepper essential oil has not yet been used in the context of aromatherapy, this study examined the effect of black pepper aroma on cardiac and peripheral autonomic nervous system (ANS) activity under stressful conditions using an olfactometer to administer aroma in a precise and controlled manner to ensure reproducibility. A within-participant
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How staying in a gymnasium affects sleep and bed climate in children J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-01-02 Kazue Okamoto-Mizuno, Koh Mizuno
We investigated the relationship between sleep, ambient climate, and bed climate in school-aged children during a one-night stay in a simulated shelter in a gymnasium to demonstrate the effect of ambient climate, and bed climate on sleep. We obtained measurements during a one-night stay in a school gymnasium (C), days before C (BC), on the day after (A1), and on the second day after C (A2) in 13 healthy
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Utility of salivary cortisol profile as a predictive biomarker in nurses’ turnover risk: a preliminary study J. Physiol. Anthropol. (IF 3.1) Pub Date : 2024-01-02 Shinya Yamaguchi, Tomoko Fujita, Shintaro Kato, Yuichi Yoshimitsu, Yoichi M. Ito, Rika Yano
Predicting nurse turnover risk is crucial due to the global nursing shortage; however, existing predictors, such as fatigue and burnout, lack objectivity. Salivary cortisol is a non-invasive marker of stress and fatigue, but its utility in predicting nurse turnover risk is unknown. We examined whether salivary cortisol profiles across three different day shifts in a month are predictors of the extent
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Leptospirosis in Malaysia: current status, insights, and future prospects J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-12-12 Noraini Philip, Kamruddin Ahmed
Among zoonotic infections, leptospirosis has a worldwide distribution and high prevalence in tropical regions. It has a broad clinical presentation from mild to severe, life-threatening infection. Leptospires, the etiological agent of leptospirosis, are found in varied ecological niches and animal species, providing a significant source of human infection. This review aims to provide the current status
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FTO and MC4R polymorphisms, and selected pre-, peri- and postnatal factors as determinants of body mass index and fatness in children: a thorough analysis of the associations J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-12-08 Ewa Bryl, Paula Szcześniewska, Agata Dutkiewicz, Agnieszka Słopień, Monika Dmitrzak-Węglarz, Tomasz Hanć
Overweight and obesity among children have become significant global health concerns. Previous studies have highlighted the potential role of genetic factors, particularly polymorphisms in the FTO and MC4R genes, as well as environmental factors in the development of childhood obesity. This study aimed to investigate the relationships between genetic, socioeconomic and perinatal factors, adverse childhood
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The effect of regular running on body weight and fat tissue of individuals aged 18 to 65 J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-11-30 Petr Kutac, Václav Bunc, Marek Buzga, Miroslav Krajcigr, Martin Sigmund
Age and reduction in performed physical activity cause physiological changes that include an increase in body fat (BF) and visceral fat (VF) during aging. These parameters, together with increased body mass (BM), are some of the risk factors of several noninfectious diseases. However, changes in body composition can be influenced by regular physical activity. Running is a suitable, accessible, and
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Diurnal differences in urine flow in healthy young men in a light-controlled environment: a randomized crossover design J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-11-17 Hiromitsu Negoro, Isuzu Nakamoto, Sayaka Uiji, Yoshiko Matsushima, Bryan J. Mathis, Dominika Kanikowska, Tomoko Wakamura
Older men often experience nocturnal urination difficulties, reflected by diurnal differences in maximum urine flow (Qmax). Since lower urinary tract symptoms and pathological comorbidities are frequent in older men, it remains unclear whether this diurnal variation is a physiological or pathological phenomenon. Our aim was to quantify the diurnal variability of Qmax in healthy young participants under
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Chronotype characteristics of professional athletes in China: a comprehensive descriptive study J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-11-08 Chenhao Tan, Jiaojiao Lu, Jinhao Wang, Yan An, Guohuan Cao, Defeng Zhao, Jun Qiu
Chronotype has gained recognition as a significant factor in enhancing athletic performance. This study aimed to deepen our understanding of athletes’ sleep chronotypes and provide a foundation for developing evidence-based training and competition programs. By comprehensively describing and analyzing the chronotype characteristics of Chinese professional athletes, considering individual and sports
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Signatures of adaptation in myopia-related genes on the sunlight exposure hypothesis J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-11-02 Tian Xia, Kazuhiro Nakayama
Myopia is a common eye disorder that results from gene-environment interactions. The prevalence of myopia varies across populations, and exposure to bright sunlight may prevent its development. We hypothesize that local adaptation to light environments during human migration played a role in shaping the genetic basis of myopia, and we aim to investigate how the environment influences the genetic basis
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Multipoint surface electromyography measurement using bull’s-eye electrodes for wide-area topographic analysis J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-10-27 Megumi Shimura, Akihiko Mizumoto, Yali Xia, Yoshihiro Shimomura
Surface electromyography (sEMG) is primarily used to analyze individual and neighboring muscle activity. However, using a broader approach can enable simultaneous measurement of multiple muscles, which is essential for understanding muscular coordination. Using the “bull’s-eye electrode,” which allows bipolar derivation without directional dependence, enables wide-area multipoint sEMG measurements
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Venous dilation effect of hot towel (moist and dry heat) versus hot pack for peripheral intravenous catheterization: a quasi-experimental study J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-10-19 Kae Yasuda, Inaho Shishido, Michito Murayama, Sanae Kaga, Rika Yano
Heat application before peripheral intravenous catheterization is recommended for venous dilation. Hot pack application enlarges the venous diameter in healthy adults; however, hot towels (moist and dry heat) are used often in some medical cases. However, it is unclear whether hot towel application promotes venous dilation better than hot pack application. This study compared the venous dilation effect
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A two-week exercise intervention improves cold symptoms and sleep condition in cold-sensitive women J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-09-29 Fumio Yamazaki, Kana Inoue, Nanako Ohmi, Chika Okimoto
We examined whether an aerobic exercise intervention in young women with cold sensitivity symptoms improves sleep quality and decreases cold complaints. Furthermore, we examined the association with increased foot skin temperature (Tsk) before falling asleep and decrease in sensitivity to cold in the brain. We recruited 16 female adult volunteers who had cold sensitivity and were not engaged in daily
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Association between serum albumin levels and height loss in Japanese workers: a retrospective study J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-09-12 Yuji Shimizu, Hidenobu Hayakawa, Eiko Honda, Nagisa Sasaki, Midori Takada, Takeo Okada, Tetsuya Ohira, Masahiko Kiyama
Height loss starting in middle age was previously shown to be associated with high cardiovascular mortality in later life. However, the factors associated with height loss remain unknown. Since low serum albumin levels are reported to be associated with high mortality caused by cardiovascular disease, they may also contribute to height loss. To clarify the association between serum albumin and height
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Effects of bathing-induced changes in body temperature on sleep J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-09-08 Takafumi Maeda, Hiroko Koga, Takashi Nonaka, Shigekazu Higuchi
Passive body heating before sleep is well known to lead to improved sleep. However, the effects of the degree of change in body temperature by bathing on sleep quality are unclear. The present study aimed to clarify the effects on sleep of bathing-induced changes in body temperature. Twenty-three healthy males and females in their 20 s to 50 s bathed in their homes 1.5–2 h before bedtime under three
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Effects of others’ gaze and facial expression on an observer’s microsaccades and their association with ADHD tendencies J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-09-07 Yuki Motomura, Sayuri Hayashi, Ryousei Kurose, Hiroki Yoshida, Takashi Okada, Shigekazu Higuchi
The aim of this study was to examine the effect of others’ gaze on an observer’s microsaccades. We also aimed to conduct preliminary investigations on the relationship between the microsaccadic response to a gaze and a gazer’s facial expression and attention-deficit/hyperactivity disorder (ADHD) tendencies. Twenty healthy undergraduate and graduate students performed a peripheral target detection task
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Alexithymia characteristics are associated with salience network activity in healthy participants: an arterial spin labeling study J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-09-06 Yuki Motomura, Ayaka Fukuzaki, Sanami Eto, Naoki Hirabayashi, Motoharu Gondo, Satoshi Izuno, Osamu Togao, Koji Yamashita, Kazufumi Kikuchi, Nobuyuki Sudo, Kazufumi Yoshihara
Alexithymia, a personality trait characterized by difficulties in identifying and expressing their emotions despite having a range of emotional experiences, can impact individuals’ stress coping mechanisms. While many studies have investigated brain functions associated with specific tasks in relation to emotion processing, research focusing on resting-state brain functions has been limited. Thus,
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The effect of FTO gene rs9939609 polymorphism on the association between colorectal cancer and different types of dietary fat intake: a case-control study J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-08-05 Azadeh Hajipour, Naeemeh Hassanpour Ardekanizadeh, Zahra Roumi, Soheila Shekari, Bahareh Aminnezhad Kavkani, Seyedeh Hayedeh Mousavi Shalmani, Bojlul Bahar, Shirin Tajadod, Marjan Ajami, Ghasem Azizi Tabesh, Maryam Gholamalizadeh, Saeid Doaei
Colorectal cancer (CRC) is one of the most common cancers in the world. Some dietary factors such as fat intake have been identified as the risk factors for CRC. This study aimed to investigate the effect of fat mass and obesity-associated (FTO) gene rs9939609 polymorphism on the association between CRC and different types of dietary fats. This case-control study was performed on 135 CRC cases and
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Association of sarcopenia, pre-sarcopenia, and dynapenia with the onset and progression of locomotive syndrome in Japanese older adults: a cross-sectional study J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-08-03 Hungu Jung, Shigeharu Tanaka, Shusei Kataoka, Ryo Tanaka
Sarcopenia commonly occurs in older adults with motor disorders requiring long-term care, and the clinical features of sarcopenia are associated with locomotive syndrome. Dynapenia is the age-related loss of muscle strength. However, the association of sarcopenia and dynapenia with the onset and progression of locomotive syndrome in older adults remains unknown. The current study aimed to determine
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Few dental indices in modern Bulgarian population from southern Bulgaria J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-07-22 Zdravka Harizanova, Atanas Baltadjiev, Ferihan Popova, Marieta Peycheva
The aim of the present study is to evaluate the reduction of the distal teeth towards the medial ones in one functional dental group in southern Bulgarian population. The study included 232 Bulgarians aged 20–40 years. Mesiodistal dimensions of the teeth were measured by Dentistry Sliding Vernier Caliper and analyzed with SPSS 23.0. Four interdental indices were calculated: inter-incisive, premolar
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Sitting vs. supine ultrasound measurements of the vastus medialis: correlations with MRI measurements and age considerations J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-07-15 Masashi Taniguchi, Yoshihiro Fukumoto, Masahide Yagi, Tetsuya Hirono, Momoko Yamagata, Ryusuke Nakai, Yosuke Yamada, Misaka Kimura, Noriaki Ichihashi
Muscle thickness (MT) and echo intensity (EI) measurements are ultrasound alternatives to magnetic resonance imaging (MRI) for evaluating muscle quantity and quality. The vastus medialis (VM) is a clinically important muscle, and assessment methods that most accurately reflect its quantity and quality are required. This study aimed to examine the correlation between MT and EI measured in the supine
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What makes people grow? Love and hope J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-07-13 Barry Bogin
Hope and love are popular themes of literature and art in many human societies. The human physiology of love and hope is less well understood. This review presents evidence that the lack of love and/or hope delays growth disturbs development and maturation and even kills. Love and hope intersect in promoting healthy human development. Love provides a sense of security and attachment, which are necessary
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Effects of ice slurry ingestion on body temperature and softball pitching performance in a hot environment: a randomized crossover trial J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-06-29 Urara Numata, Takuma Yanaoka, Shiho Kurosaka, Hiroshi Hasegawa
Although softball players are often required to play in hot environments, scarce evidence is available regarding the effects of ice slurry ingestion on body temperature and pitching performance in softball pitchers in a hot environment. Thus, this study investigated the effects of ice slurry ingestion before and between innings on body temperature and softball pitching performance in a hot environment
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Review on age-related differences in non-visual effects of light: melatonin suppression, circadian phase shift and pupillary light reflex in children to older adults J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-06-24 Taisuke Eto, Shigekazu Higuchi
Physiological effects of light exposure in humans are diverse. Among them, the circadian rhythm phase shift effect in order to maintain a 24-h cycle of the biological clock is referred to as non-visual effects of light collectively with melatonin suppression and pupillary light reflex. The non-visual effects of light may differ depending on age, and clarifying age-related differences in the non-visual
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Higher synchronization stability with piano experience: relationship with finger and presentation modality J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-06-19 Kanami Ito, Tatsunori Watanabe, Takayuki Horinouchi, Takuya Matsumoto, Keisuke Yunoki, Haruki Ishida, Hikari Kirimoto
Synchronous finger tapping to external sensory stimuli is more stable for audiovisual combined stimuli than sole auditory or visual stimuli. In addition, piano players are superior in synchronous tapping and manipulating the ring and little fingers as compared to inexperienced individuals. However, it is currently unknown whether the ability to synchronize to external sensory stimuli with the ring
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Is the muscle–tendon architecture of non-athletic Kenyans different from that of Japanese and French males? J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-06-01 Yoko Kunimasa, Kanae Sano, Caroline Nicol, Joëlle Barthèlemy, Masaki Ishikawa
In endurance running, elite Kenyan runners are characterized by longer thigh, shank, and Achilles tendon (AT) lengths combined with shorter fascicles and larger medial gastrocnemius (MG) pennation angles than elite Japanese runners. These muscle-tendon characteristics may contribute to the running performance of Kenyans. Furthermore, these specific lower-leg musculoskeletal architectures have been
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Effects of fearful face presentation time and observer’s eye movement on the gaze cue effect J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-05-29 Chuntai Yu, Keita Ishibashi, Koichi Iwanaga
There are many conflicting findings on the gaze cueing effect (GCE) of emotional facial expressions. This study aimed to investigate whether an averted gaze, accompanied by a fearful expression of different durations, could enhance attentional orientation, as measured by a participant’s eye movements. Twelve participants (3 females) completed the gaze cue task, reacting to a target location after observing
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Correction: Association between high cardiac output at altitude and acute mountain sickness: preliminary study on Mt. Fuji J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-05-19 Takeshi Ebihara, Kentaro Shimizu, Yumi Mitsuyama, Hiroshi Ogura, Jun Oda
Correction: J Physiol Anthropol 42, 6 (2023) https://doi.org/10.1186/s40101-023-00322-7 Following publication of the original article [1], the authors identified an error in Fig. 1E. The legend (AMS(-) n = 7 AMS(-) n = 7) appeared twice in Fig. 1E that causes the overlapping of data. The original article [1] has been corrected. Ebihara T, Shimizu K, Mitsuyama Y, et al. Association between high cardiac
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Association between high cardiac output at altitude and acute mountain sickness: preliminary study on Mt. Fuji J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-04-13 Takeshi Ebihara, Kentaro Shimizu, Yumi Mitsuyama, Hiroshi Ogura, Jun Oda
Acute mountain sickness (AMS) affects around 30% of people climbing Mt. Fuji, but its pathogenesis is incompletely understood. The influence of a rapid ascent to high altitude by climbing and summiting Mt. Fuji on cardiac function in the general population is unknown, and its association with altitude sickness has not been clarified. Subjects climbing Mt. Fuji were included. Heart rate, oxygen saturation
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Postural influence on intracranial fluid dynamics: an overview J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-04-13 Arlan Faritovich Sagirov, Timofey Vladimirovich Sergeev, Aleksandr Vladimirovich Shabrov, Andrey Yur’evich Yurov, Nadezhda Leonidovna Guseva, Elizaveta Aleksandrovna Agapova
This review focuses on the effects of different body positions on intracranial fluid dynamics, including cerebral arterial and venous flow, cerebrospinal fluid (CSF) hydrodynamics, and intracranial pressure (ICP). It also discusses research methods used to quantify these effects. Specifically, the implications of three types of body positions (orthostatic, supine, and antiorthostatic) on cerebral blood
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Association between decreased grip strength in preschool children and the COVID-19 pandemic: an observational study from 2015 to 2021 J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-03-24 Atsumu Yuki, Yumi Tamase, Mika Nakayama
Coronavirus disease 2019 (COVID-19) has reduced people’s physical activity. It is essential to accumulate knowledge regarding the influence of COVID-19 on the stimulation of physical fitness and physical functions. Several studies have reported the effects of COVID-19 on physical fitness; however, there are very few reports regarding preschoolers. This study aimed to compare the physical fitness of
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The next stage of physiological anthropology J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-03-10 Akira Yasukouchi
The scope of physiological anthropology is, in part, similar to that of human biology and biological anthropology. Raymond Pearl first proposed the term human biology and founded the journal Human Biology in 1929. In the study of human biology, emphasis is placed on the population level, including biometric analyses and experimental studies. The topics covered included population structure and vital
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Cold-induced vasodilation response in a Japanese cohort: insights from cold-water immersion and genome-wide association studies J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-03-08 Yoshiki Yasukochi, Toshihiro Sera, Taiki Kohno, Yusuke Nakashima, Musashi Uesugi, Susumu Kudo
Cold-induced vasodilation (CIVD) occurs after blood vessels in the skin are constricted due to local cold exposure. Although many CIVD studies have been conducted, the underlying molecular mechanisms are yet to be clarified. Therefore, we explored genetic variants associated with CIVD response using the largest-scale dataset reported to date in a CIVD study involving wavelet analysis; thus, the findings
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Impact of energy availability and physical activity on variation in fertility across human populations J. Physiol. Anthropol. (IF 3.1) Pub Date : 2023-02-24 Srishti Sadhir, Herman Pontzer
Human reproduction is energetically costly, even more so than other primates. In this review, we consider how the energy cost of physical activity impacts reproductive tasks. Daily energy expenditure appears to be constrained, leading to trade-offs between activity and reproduction expenditures in physically active populations. High workloads can lead to suppression of basal metabolic rate and low
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Effects of using a snooze alarm on sleep inertia after morning awakening J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-12-31 Ogawa, Keiko, Kaizuma-Ueyama, Emi, Hayashi, Mitsuo
Many people use the snooze function of digital alarm clocks for morning awakening, but the effects of a snooze alarm on waking are unclear. We examined the effects of a snooze alarm on sleep inertia, which is a transitional state characterized by reduced arousal and impaired cognitive and behavioral performance immediately upon awakening. In study 1, healthy Japanese university students responded to
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Circadian phase advances in children during camping life according to the natural light-dark cycle J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-12-16 Eto, Taisuke, Kitamura, Shingo, Nishimura, Kana, Takeoka, Kota, Nishimura, Yuki, Lee, Sang-il, Ohashi, Michihiro, Shikano, Akiko, Noi, Shingo, Higuchi, Shigekazu
It is known that the circadian rhythm phase in adults can be advanced in a natural light-dark cycle without electrical lighting. However, the effect of advanced sleep-wake timing according to the natural light-dark cycle on children’s circadian phase is unclear. We investigated the effects of approximately 2 weeks of camping life with little access to artificial lighting on children’s circadian phases
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Haptic feedback intervention decreases the spatial margin when older adults walk through a narrow space J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-12-13 Hakamata, T., Muroi, D., Kodama, K., Kondo, Y., Higuchi, T.
The ability to avoid obstacles efficiently and safely is important for older adults to prevent injuries from tripping and falling. It is important to find an optimal spatial margin between the body and an obstacle considering both safety and efficiency. One side of finding the optimal margin is to decrease the margin in terms of motor efficiency. In this study, we tested whether fingertip-contact intervention
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Relationship between body composition indices and changes in body temperature due to hot pack use J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-11-11 Kominami, Kazuyuki, Sato, Kazunari, Takahashi, Naoaki
Hot pack application is used to reduce pain and muscle stiffness at the treated site. However, the effects of hot pack application on the whole body have not been clarified. We investigated the relationship between body composition indices and the hot pack-induced increase in body temperature. We recruited 17 healthy men (age, 22.0 ± 3.3 years) who participated in the study on five different days and
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Training effect on sex-based differences in components of the Shepard and Metzler mental rotation task J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-11-11 Kozaki, Tomoaki
Spatial ability has been reported to indicate sex-based differences in humans, mainly assessed by Shepard and Metzler mental rotation task (SM-MRT). Most performances in earlier studies have been evaluated by the mean value of reaction time and/or accuracy. The performance indexes might not be sensitive measures of mental rotation. Sex-based differences in the performance might also be involved in
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ALDH2 gene polymorphism is associated with fitness in the elderly Japanese population J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-11-05 De Almeida, Kathleen Yasmin, Saito, Mika, Homma, Hiroki, Mochizuki, Yukina, Saito, Aoto, Deguchi, Minoru, Kozuma, Ayumu, Okamoto, Takanobu, Nakazato, Koichi, Kikuchi, Naoki
The aldehyde dehydrogenase 2 (ALDH2) rs671 polymorphism, which is exclusive to the Asian population, is related to many diseases. A high reactive oxygen species production in mitochondria, and low muscle strength in athletes and non-athletes, has been observed, as our previous study demonstrated. The purpose of this research was to investigate the influence of ALDH2 rs671 on the loss of muscle strength
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Effects of different temperatures of carbohydrate-protein-containing drinks on gastric emptying rate after exercise in healthy young men: randomized crossover trial J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-10-25 Fujihira, Kyoko, Takahashi, Masaki, Shimamura, Kei, Hayashi, Naoyuki
The present study examined the effects of different temperatures of carbohydrate-protein-containing drinks after exercise on the subsequent gastric emptying rate in healthy young men. Twelve healthy young men completed two, 1-day trials in random order. In both trials, the participants completed intermittent cycling exercise for 20 min, consisting of a 120% heart rate peak for 20 s, followed by 25 W
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Hypoxic-induced resting ventilatory and circulatory responses under multistep hypoxia is related to decline in peak aerobic capacity in hypoxia J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-10-24 Horiuchi, Masahiro, Dobashi, Shohei, Kiuchi, Masataka, Fukuoka, Yoshiyuki, Koyama, Katsuhiro
Several factors have been shown to contribute to hypoxic-induced declined in aerobic capacity. In the present study, we investigated the effects of resting hypoxic ventilatory and cardiac responses (HVR and HCR) on hypoxic-induced declines in peak oxygen uptake ( $$\dot{\mathrm V}$$ O2peak). Peak oxygen uptakes was measured in normobaric normoxia (room air) and hypoxia (14.1% O2) for 10 young healthy
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Autonomic thermoregulatory responses and subjective thermal perceptions upon the initiation of thermal behavior among resting humans in hot and humid environment J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-10-10 Sedilla, Keneth B., Maeda, Takafumi
While thermoregulatory behavior is critical for maintaining homeostasis, our knowledge of behavioral thermoeffectors in humid heat is limited compared to the control of autonomic thermoeffectors. The predictions that the frequency and duration of intensified humid heat events are expected to increase in the coming years underline this shortcoming. Therefore, this study aims to elucidate the activation
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Pre-cooling with ingesting a high-carbohydrate ice slurry on thermoregulatory responses and subcutaneous interstitial fluid glucose during heat exposure J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-10-10 Naito, Takashi, Saito, Tatsuya, Morito, Akihisa, Yamada, Satoshi, Shimomasuda, Masatsugu, Nakamura, Mariko
The purpose of this study was to compare the effects of ingesting ice slurries with two different carbohydrate contents on body temperatures and the subcutaneous interstitial fluid glucose level during heat exposure. Seven physically active men underwent one of three interventions: the ingestion of 7.5 g/kg of a control beverage (CON: 26°C), a normal-carbohydrate ice slurry (NCIS: −1°C), or a high-carbohydrate
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Biocultural intersections: stressors, adaptability, allostasis, frailty, and aging J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-09-24 Crews, Douglas
Papers in this collection address multiple research areas within human physiological, biological, and biocultural anthropology. Applying ecological and evolutionary theory, physiological anthropologists explore and document influences of environmental, biocultural, and social stressors on human variation across the life span by sex, location, and migratory status within and among groups. Using biocultural
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Effects of short-term repeated sprint training in hypoxia or with blood flow restriction on response to exercise J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-09-03 Giovanna, Margaux, Solsona, Robert, Sanchez, Anthony M. J., Borrani, Fabio
This study compared the effects of a brief repeated sprint training (RST) intervention performed with bilateral blood flow restriction (BFR) conditions in normoxia or conducted at high levels of hypoxia on response to exercise. Thirty-nine endurance-trained athletes completed six repeated sprints cycling sessions spread over 2 weeks consisting of four sets of five sprints (10-s maximal sprints with
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Intake of l-serine before bedtime prevents the delay of the circadian phase in real life J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-08-26 Ohashi, Michihiro, Lee, Sang-il, Eto, Taisuke, Uotsu, Nobuo, Tarumizu, Chie, Matsuoka, Sayuri, Yasuo, Shinobu, Higuchi, Shigekazu
It has been shown in laboratory experiments using human subjects that ingestion of the non-essential amino acid l-serine before bedtime enhances the advance of circadian phase induced by light exposure the next morning. In the present study, we tested the effect of ingestion of l-serine before bedtime on circadian phase in real life and whether its effect depends on the initial circadian phase. The
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Genome-wide DNA methylation status of Mongolians exhibits signs of cellular stress response related to their nomadic lifestyle J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-08-19 Inaba, Yuta, Iwamoto, Sadahiko, Nakayama, Kazuhiro
Epigenetics is crucial for connecting environmental stresses with physiological responses in humans. Mongolia, where nomadic livestock pastoralism has been the primal livelihood, has a higher prevalence of various chronic diseases than the surrounding East Asian regions, which are more suitable for crop farming. The genes related to dietary stress and pathogenesis of related disorders may have varying
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Validity of an algorithm for determining sleep/wake states using FS-760 in school-aged children J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-08-18 Enomoto, Minori, Kitamura, Shingo, Nakazaki, Kyoko
Actigraphy is a method used for determining sleep (S)/wakefulness (W) by actigraph, a device equipped with a built-in accelerometer and an algorithm validated for each device. The S/W determination algorithm for the waist-worn actigraph FS-760 has been formulated for adults. However, the algorithm for children has not been established. The purpose of this study was to formulate an algorithm for discriminating
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Determining total energy expenditure in 3–6-year-old Japanese pre-school children using the doubly labeled water method J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-08-05 Teramoto, Keisuke, Otoki, Kodo, Muramatsu, Erina, Oya, Chika, Kataoka, Yui, Igawa, Shoji
The doubly labeled water (DLW, 2H218O) method for calculating the total production of CO2 over several days is currently considered to be the most accurate technique for the measurement of total energy expenditure (TEE), and the results obtained using this method have been used to review energy requirements. Presently, there is limited data available on TEE in Japanese children. The objective of this
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How humans adapt to hot climates learned from the recent research on tropical indigenes J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-07-14 Tochihara, Yutaka, Wakabayashi, Hitoshi, Lee, Joo-Young, Wijayanto, Titis, Hashiguchi, Nobuko, Saat, Mohamed
This review mainly aimed to introduce the findings of research projects comparing the responses of tropical and temperate indigenes to heat. From a questionnaire survey on thermal sensation and comfort of Indonesians and Japanese, we found that the thermal descriptor “cool” in tropical indigenes connotes a thermally comfortable feeling, suggesting that linguistic heat acclimatization exists on a cognitive
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Women’s lifetime reproductive profiles and frailty among aging individuals in the USA and the Philippines J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-07-01 Escasa-Dorne, Michelle, Zoorob, Ronza
Frailty, particularly traits which are related to sex steroid hormone production, results from the age-associated decline in function considered to be part of the typical aging process. This process may vary with influences including environmental, biological, or lifestyle factors. An area of concern that has received relatively little attention is the impact of cumulative lifetime changes in sex steroid
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Effects of soy protein isolate and soy peptide preload on gastric emptying rate and postprandial glycemic control in healthy humans J. Physiol. Anthropol. (IF 3.1) Pub Date : 2022-06-27 Ueoka, Hatsumi, Fukuba, Yoshiyuki, Yamaoka Endo, Masako, Kobayashi, Toshio, Hamada, Hironobu, Kashima, Hideaki
This study aims to compare the effects of soy protein isolate (SPI) and soy peptide (PEP) preload 30 min before a 75-g oral glucose tolerance test (OGTT) on the gastric emptying rate, plasma insulin, and blood glucose responses. Nine healthy young subjects were evaluated on four occasions. The participants consumed a 200-ml solution containing either 20 g of SPI or PEP in experiment 1. In experiment