The effects of stride frequency manipulation on physiological and perceptual responses during backward and forward running with body weight support
The effects of stride frequency manipulation on physiological and perceptual responses during backward and forward running with body weight support
复制标题
步频控制对体重支撑后退和前进跑步过程中生理和知觉反应的影响
DOI：
10.1007/s00421-020-04380-y
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发表时间：
2020
影响因子：
3
通讯作者：
Mercer John A.
中科院分区：
文献类型：
--
作者：
Masumoto Kenji;Denton Daniel;Craig-Jones Andrew;Mercer John A.
目的我们研究了在不同体重支撑（BWS）水平下向前和向后跑步时步频变化对生理和感知反应的影响。方法参与者在下半身正压跑步机上以0%BWS、20%BWS和50%BWS条件向前和向后跑步。步频条件包括以优选步频（PSF）、PSF +10%和PSF-10%向前和向后跑步。我们测量了摄氧量（O2）、二氧化碳产生量、心率（HR）、下肢肌肉活动和主观用力评分（RPE）。结果不同步频条件下运动员的氧分压（O2）、心率（HR）、运动量（CoT）和股直肌活性差异有统计学意义（P <0. 05）;在不同步频条件下，运动员的氧分压（O2）、心率（HR）和运动量（CoT）均显著高于运动员。然而，RPE在步频条件下没有差异（P> 0.05：例如，12.8-13.8排名在RPE向后运行在0%BWS）.ConclusionsManipulation的步频在运行过程中可能有更大的影响生理反应比感知反应在给定的速度，无论运行方向和BWS。无论BWS和跑步方向如何，需要在跑步过程中增加生理需求的个人都可以从PSF的步频增加10%中受益。
PurposeWe investigated the influence of a change in stride frequency on physiological and perceptual responses during forward and backward running at different body weight support (BWS) levels.MethodsParticipants ran forward and backward at 0% BWS, 20% BWS, and 50% BWS conditions on a lower body positive pressure treadmill. The stride frequency conditions consisted of forward and backward running at preferred stride frequency (PSF), PSF + 10%, and PSF-10%. We measured oxygen uptake (O2), carbon dioxide production, heart rate (HR), muscle activity from the lower extremity, and rating of perceived exertion (RPE). Furthermore, we calculated the metabolic cost of transport (CoT).ResultsO2,HR, CoT, and muscle activity from the rectus femoris were significantly different between stride frequency conditions (P< 0.05).O2, HR, and CoT during running at PSF + 10% were significantly higher than when running at PSF, regardless of running direction and BWS (P< 0.05). However, RPE was not different between stride frequency conditions (P> 0.05: e.g., 12.8–13.8 rankings in RPE for backward running at 0% BWS).ConclusionsManipulation of stride frequency during running may have a greater impact on physiological responses than on perceptual responses at a given speed, regardless of running direction and BWS. Individuals who need to increase their physiological demands during running may benefit from a 10% increase in stride frequency from the PSF, regardless of BWS and running direction.
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影响因子：
3.3
作者：
Beck, Owen N.;Taboga, Paolo;Grabowski, Alena M.
通讯作者：
Grabowski, Alena M.
DOI：
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发表时间：
1995
期刊：
--
影响因子：
--
作者：
H. Hislop;J. Montgomery;J. Turman;Luci Daniels;Teresa Van Vranken
通讯作者：
H. Hislop;J. Montgomery;J. Turman;Luci Daniels;Teresa Van Vranken
确定在水中和陆地上跑步时肌肉活动是否与首选步频相关
影响因子：
3
作者：
Kenji Masumoto;Joshua P. Bailey;J. Mercer
通讯作者：
J. Mercer
影响因子：
1.4
作者：
Grabowski, Allena M.;Kram, Rodger
通讯作者：
Kram, Rodger
影响因子：
3.2
作者：
John;R.;Kline;Scot Raab;J.;Richard Coast;Roger;G.;Bounds;David;P. K;Mcneill;Hendrik;D.;DE Heer
通讯作者：
DE Heer