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Acute Cardiometabolic and Perceptual Responses to Individual and Group-Based Body-Weight Resistance Exercise in Girls.
Pediatric Exercise Science ( IF 1.4 ) Pub Date : 2021-06-24 , DOI: 10.1123/pes.2020-0248
Jeanette M Ricci 1 , Katharine D Currie 1 , Todd A Astorino 2 , Karin A Pfeiffer 1
Affiliation  

Girls' acute responses to group-based high-intensity interval exercise (HIIE) are not well characterized. PURPOSE To compare acute responses to treadmill-based HIIE (TM) and body-weight resistance exercise circuit (CIRC) and to CIRC performed in a small-group setting (group CIRC). METHOD Nineteen girls (9.1 [1.1] y) completed exercise testing on a TM to determine peak oxygen uptake, peak heart rate (HRpeak), and maximal aerobic speed. The TM involved eight 30-second sprints at 100% maximal aerobic speed. The CIRC consisted of 8 exercises of maximal repetitions performed for 30 seconds. Each exercise bout was followed by 30 seconds of active recovery. The blood lactate concentration was assessed preexercise and postexercise. The ratings of perceived exertion, affective valence, and enjoyment were recorded at preexercise, Intervals 3 and 6, and postexercise. RESULTS The mean heart rate was higher during group CIRC (92% [7%] HRpeak) than CIRC (86% [7%] HRpeak) and TM (85% [4%] HRpeak) (ηp2 = .49). The mean oxygen uptake equaled 76% (11%) of the peak oxygen uptake for CIRC and did not differ from TM (d = 0.02). The CIRC elicited a greater postexercise blood lactate concentration versus TM (5.8 [1.7] vs 1.4 [0.4] mM, d = 3.61). The perceptual responses were similar among conditions (P > .05), and only the rating of perceived exertion increased during exercise (ηp2 = .78). CONCLUSION Whether performed individually or in a small group, CIRC represents HIIE and may be a feasible alternative to running-based HIIE.

中文翻译:

女孩对个体和基于群体的体重阻力运动的急性心脏代谢和知觉反应。

女孩对基于团体的高强度间歇运动 (HIIE) 的急性反应没有得到很好的表征。目的 比较对基于跑步机的 HIIE (TM) 和体重阻力运动回路 (CIRC) 以及在小组环境中执行的 CIRC(CIRC 组)的急性反应。方法 19 名女孩 (9.1 [1.1] y) 在 TM 上完成了运动测试,以确定峰值摄氧量、峰值心率 (HRpeak) 和最大有氧运动速度。TM 涉及 8 个 30 秒的 100% 最大有氧速度冲刺。CIRC 包括 8 次最大重复次数的练习,每次 30 秒。每次锻炼后都有 30 秒的主动恢复。在运动前和运动后评估血乳酸浓度。在运动前、第 3 和第 6 间隔记录了感知用力、情感效价和享受的等级,和运动后。结果 CIRC 组 (92% [7%] HRpeak) 的平均心率高于 CIRC (86% [7%] HRpeak) 和 TM (85% [4%] HRpeak) (ηp2 = .49)。平均摄氧量等于 CIRC 峰值摄氧量的 76% (11%),与 TM (d = 0.02) 没有差异。与 TM 相比,CIRC 产生了更高的运动后血乳酸浓度(5.8 [1.7] 对 1.4 [0.4] mM,d = 3.61)。不同条件下的知觉反应相似(P > .05),只有运动过程中感知用力的评分增加(ηp2 = .78)。结论 无论是单独执行还是在小组中执行,CIRC 都代表 HIIE,并且可能是基于跑步的 HIIE 的可行替代方案。平均摄氧量等于 CIRC 峰值摄氧量的 76% (11%),与 TM (d = 0.02) 没有差异。与 TM 相比,CIRC 产生了更高的运动后血乳酸浓度(5.8 [1.7] 对 1.4 [0.4] mM,d = 3.61)。不同条件下的知觉反应相似(P > .05),只有运动过程中感知用力的评分增加(ηp2 = .78)。结论 无论是单独执行还是在小组中执行,CIRC 都代表 HIIE,并且可能是基于跑步的 HIIE 的可行替代方案。平均摄氧量等于 CIRC 峰值摄氧量的 76% (11%),与 TM (d = 0.02) 没有差异。与 TM 相比,CIRC 产生了更高的运动后血乳酸浓度(5.8 [1.7] 对 1.4 [0.4] mM,d = 3.61)。不同条件下的知觉反应相似(P > .05),只有运动过程中感知用力的评分增加(ηp2 = .78)。结论 无论是单独执行还是在小组中执行,CIRC 都代表 HIIE,并且可能是基于跑步的 HIIE 的可行替代方案。并且只有在运动过程中感知运动的评分增加(ηp2 = .78)。结论 无论是单独执行还是在小组中执行,CIRC 都代表 HIIE,并且可能是基于跑步的 HIIE 的可行替代方案。并且只有在运动过程中感知运动的评分增加(ηp2 = .78)。结论 无论是单独执行还是在小组中执行,CIRC 都代表 HIIE,并且可能是基于跑步的 HIIE 的可行替代方案。
更新日期:2021-06-24
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