Determining if muscle activity is related to preferred stride frequency during running in the water and on land
Determining if muscle activity is related to preferred stride frequency during running in the water and on land
复制标题
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
DOI：
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发表时间：
2015
影响因子：
3
通讯作者：
J. Mercer
中科院分区：
文献类型：
--
作者：
Kenji Masumoto;Joshua P. Bailey;J. Mercer
确定在深水跑步（DWR）和在陆地跑步机上跑步（TMR）时，肌肉活动是否与首选步频（PSF）相关。受试者（n = 11; 26.2 ± 4.4岁）以其模式特异性首选步频（PSF模式）完成TMR和DWR。他们还以低于和高于PSF模式的步频跑步（即，PSF模式± 5、10和15%）。测量股直肌（RF）、股二头肌（BF）、胫骨前肌（TA）和腓肠肌（GL）的肌肉活动、SF和感觉用力等级（RPE）。DWR期间的PSF模式显著低于TMR（即，49.9 81.9 ± 4.8步/分，P < 0.0001）。此外，在相应的PSF模式下，DWR期间RF、TA和GL的肌肉活动显著低于TMR期间（降低约83.6%，P < 0.0001）。然而，在DWR和TMR期间以PSF模式运行时的RPE是相似的。在DWR期间，RF、TA和GL肌肉活动在PSF模式和任何其他SF条件下均无差异（P > 0.0005）。在TMR期间，RF和GL肌肉活动在PSF模式与TMR期间的任何SF条件之间均无显著差异（P > 0.0005）。在DWR期间，受试者选择的PSF低于TMR期间，即使RPE相同。还确定肌肉活动与SF相对于PSF模式的变化之间的关系在DWR和TMR期间是独特的。
To determine if muscle activity is related to preferred stride frequency (PSF) during deep water running (DWR) and treadmill running on dry land (TMR). Subjects (n = 11; 26.2 ± 4.4 years) completed TMR and DWR at their mode-specific preferred stride frequency (PSFmode). They also ran at stride frequencies which were lower and higher than the PSFmode (i.e., PSFmode ± 5, 10, and 15 %). Muscle activity from the rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), and gastrocnemius (GL), SF, and rating of perceived exertion (RPE) were measured. The PSFmode during DWR was significantly lower than that of TMR (i.e., 49.9 ± 11.0 versus 81.9 ± 4.8 strides/min, P < 0.0001). Additionally, muscle activity from the RF, TA, and GL during DWR was significantly lower than during TMR at respective PSFmode (~83.6 % decrease, P < 0.0001). However, RPE while running at the PSFmode during DWR and TMR was similar. During DWR, the RF, TA, and GL muscle activity was not different between PSFmode and any other SF conditions (P > 0.0005). During TMR, there was no significant difference in the RF and GL muscle activity between PSFmode and any other SF conditions during TMR (P > 0.0005). During DWR, subjects selected a lower PSF than during TMR even though RPE was the same. It was also determined that the relationship between muscle activity and changes in SF relative to the PSFmode was unique during DWR and TMR.
影响因子：
4.1
作者：
Lenhart RL;Thelen DG;Wille CM;Chumanov ES;Heiderscheit BC
通讯作者：
Heiderscheit BC
影响因子：
4.1
作者：
Heiderscheit BC;Chumanov ES;Michalski MP;Wille CM;Ryan MB
通讯作者：
Ryan MB