Abstract
This study aimed to examine whether walking in water produces age-related differences in muscle activity, stride frequency (SF), and heart rate (HR) response. Surface electromyography (EMG) was used to evaluate muscle activities in six older and six young subjects while they walked in water immersed to the level of the xiphoid process. The trials in water utilized the Flowmill which consists of a treadmill at the base of a water flume. The measurement of maximal voluntary contraction (MVC) of each muscle was made prior to the gait analysis. The %MVCs, which refer to the surface EMG measures, from the gastrocnemius of the older subjects were significantly lower than those of the young subjects, in every experimental condition (P < 0.05). In contrast, the %MVCs from the rectus femoris (P < 0.05) and the biceps femoris (P < 0.001) of older subjects were significantly greater than those of young subjects in every experimental condition. Moreover, the SFs of older subjects were also significantly greater than those of young subjects (P < 0.05), while the HR responses of older and young subjects were similar. In conclusion, the older subjects had increased hip musculature activity and decreased ankle plantar flexor activity while walking in water, compared with the young subjects.
| Original language | English |
|---|---|
| Pages (from-to) | 596-604 |
| Number of pages | 9 |
| Journal | Journal of Electromyography and Kinesiology |
| Volume | 17 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Oct 1 2007 |
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All Science Journal Classification (ASJC) codes
- Neuroscience (miscellaneous)
- Biophysics
- Clinical Neurology
Cite this
Age-related differences in muscle activity, stride frequency and heart rate response during walking in water. / Masumoto, Kenji; Shono, Tomoki; Takasugi, Shin ichiro; Hotta, Noboru; Fujishima, Kazutaka; Iwamoto, Yukihide.
In: Journal of Electromyography and Kinesiology, Vol. 17, No. 5, 01.10.2007, p. 596-604.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Age-related differences in muscle activity, stride frequency and heart rate response during walking in water
AU - Masumoto, Kenji
AU - Shono, Tomoki
AU - Takasugi, Shin ichiro
AU - Hotta, Noboru
AU - Fujishima, Kazutaka
AU - Iwamoto, Yukihide
PY - 2007/10/1
Y1 - 2007/10/1
N2 - This study aimed to examine whether walking in water produces age-related differences in muscle activity, stride frequency (SF), and heart rate (HR) response. Surface electromyography (EMG) was used to evaluate muscle activities in six older and six young subjects while they walked in water immersed to the level of the xiphoid process. The trials in water utilized the Flowmill which consists of a treadmill at the base of a water flume. The measurement of maximal voluntary contraction (MVC) of each muscle was made prior to the gait analysis. The %MVCs, which refer to the surface EMG measures, from the gastrocnemius of the older subjects were significantly lower than those of the young subjects, in every experimental condition (P < 0.05). In contrast, the %MVCs from the rectus femoris (P < 0.05) and the biceps femoris (P < 0.001) of older subjects were significantly greater than those of young subjects in every experimental condition. Moreover, the SFs of older subjects were also significantly greater than those of young subjects (P < 0.05), while the HR responses of older and young subjects were similar. In conclusion, the older subjects had increased hip musculature activity and decreased ankle plantar flexor activity while walking in water, compared with the young subjects.
AB - This study aimed to examine whether walking in water produces age-related differences in muscle activity, stride frequency (SF), and heart rate (HR) response. Surface electromyography (EMG) was used to evaluate muscle activities in six older and six young subjects while they walked in water immersed to the level of the xiphoid process. The trials in water utilized the Flowmill which consists of a treadmill at the base of a water flume. The measurement of maximal voluntary contraction (MVC) of each muscle was made prior to the gait analysis. The %MVCs, which refer to the surface EMG measures, from the gastrocnemius of the older subjects were significantly lower than those of the young subjects, in every experimental condition (P < 0.05). In contrast, the %MVCs from the rectus femoris (P < 0.05) and the biceps femoris (P < 0.001) of older subjects were significantly greater than those of young subjects in every experimental condition. Moreover, the SFs of older subjects were also significantly greater than those of young subjects (P < 0.05), while the HR responses of older and young subjects were similar. In conclusion, the older subjects had increased hip musculature activity and decreased ankle plantar flexor activity while walking in water, compared with the young subjects.
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UR - http://www.scopus.com/inward/citedby.url?scp=34547565422&partnerID=8YFLogxK
U2 - 10.1016/j.jelekin.2006.06.006
DO - 10.1016/j.jelekin.2006.06.006
M3 - Article
VL - 17
SP - 596
EP - 604
JO - Journal of Electromyography and Kinesiology
JF - Journal of Electromyography and Kinesiology
SN - 1050-6411
IS - 5
ER -