Article

The purpose of this study was to compare muscle activity during deep water
running (DWR) and treadmill running on dry land (TMR) as well as to investigate
effect of stride frequency (SF) on muscle activity while using different styles
of DWR (high-knee and cross-country styles, DWR-HK and DWR-CC, respectively).
Eight subjects participated in this study. The baseline condition consisted of
TMR at the preferred stride frequency (PSF). The remaining conditions consisted
of DWR-HK and DWR-CC at PSF, PSF-15%, and PSF+15%. Muscle activity was recorded
from the rectus femoris, biceps femoris, tibialis anterior, and gastrocnemius.
Rectus femoris and biceps femoris muscle activity during DWR-CC-PSF were
significantly greater than that of TMR-PSF (P<0.05). However, rectus femoris
muscle activity during DWR-HK-PSF was significantly lower than that of TMR-PSF
(P<0.05). Gastrocnemius muscle activity during both DWR-HK-PSF and DWR-CC-PSF
were significantly lower than that of TMR-PSF (P<0.05). Furthermore, muscle
activity from all tested muscles during DWR-HK and DWR-CC increased with
increasing SF (P<0.05). These observations indicated that muscle activity is
influenced not only by running in the water but also by the style of DWR (DWR-HK,
DWR-CC) used.
CI - Copyright (c) 2012 Elsevier B.V. All rights reserved.

Langue : ANGLAIS