Abstract
This study compared the muscle activities, cardiorespiratory responses, and ratings of perceived exertion (RPE) of nine older individuals while walking in water with those obtained while walking on dry land. Electromyography, stride frequency (SF), stride length (SL), oxygen uptake (over(V, ̇) O2), heart rate (HR), RPE (for breathing and legs, RPE-Br and RPE-Legs, respectively), and blood lactate concentration (BLa) were measured. There were no significant differences in the over(V, ̇) O2, HR, RPE-Br, RPE-Legs or BLa while walking in water and on dry land (moderate and fast speeds). Both in water and on dry land, the over(V, ̇) O2 -HR, over(V, ̇) O2-walking speed, and HR-walking speed relationships were significantly correlated. The SF and SL while walking in water were significantly lower than on dry land. The %MVCs while walking in water were all significantly lower than on dry land within each speed condition. Conversely, the over(V, ̇) O2, HR, RPE-Br and RPE-Legs, BLa, SL, and %MVC (the rectus femoris, vastus medialis, biceps femoris, and gastrocnemius) while walking in water were significantly higher than on dry land at the same speeds. In conclusion, walking in water elicits higher muscle activities, higher cardiorespiratory responses, and increased perceived exertion levels in older adults than walking on dry land at the same speed.
| Original language | English |
|---|---|
| Pages (from-to) | 581-590 |
| Number of pages | 10 |
| Journal | Journal of Electromyography and Kinesiology |
| Volume | 18 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Aug 1 2008 |
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All Science Journal Classification (ASJC) codes
- Orthopedics and Sports Medicine
Cite this
Muscle activation, cardiorespiratory response, and rating of perceived exertion in older subjects while walking in water and on dry land. / Masumoto, Kenji; Shono, Tomoki; Hotta, Noboru; Fujishima, Kazutaka.
In: Journal of Electromyography and Kinesiology, Vol. 18, No. 4, 01.08.2008, p. 581-590.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Muscle activation, cardiorespiratory response, and rating of perceived exertion in older subjects while walking in water and on dry land
AU - Masumoto, Kenji
AU - Shono, Tomoki
AU - Hotta, Noboru
AU - Fujishima, Kazutaka
PY - 2008/8/1
Y1 - 2008/8/1
N2 - This study compared the muscle activities, cardiorespiratory responses, and ratings of perceived exertion (RPE) of nine older individuals while walking in water with those obtained while walking on dry land. Electromyography, stride frequency (SF), stride length (SL), oxygen uptake (over(V, ̇) O2), heart rate (HR), RPE (for breathing and legs, RPE-Br and RPE-Legs, respectively), and blood lactate concentration (BLa) were measured. There were no significant differences in the over(V, ̇) O2, HR, RPE-Br, RPE-Legs or BLa while walking in water and on dry land (moderate and fast speeds). Both in water and on dry land, the over(V, ̇) O2 -HR, over(V, ̇) O2-walking speed, and HR-walking speed relationships were significantly correlated. The SF and SL while walking in water were significantly lower than on dry land. The %MVCs while walking in water were all significantly lower than on dry land within each speed condition. Conversely, the over(V, ̇) O2, HR, RPE-Br and RPE-Legs, BLa, SL, and %MVC (the rectus femoris, vastus medialis, biceps femoris, and gastrocnemius) while walking in water were significantly higher than on dry land at the same speeds. In conclusion, walking in water elicits higher muscle activities, higher cardiorespiratory responses, and increased perceived exertion levels in older adults than walking on dry land at the same speed.
AB - This study compared the muscle activities, cardiorespiratory responses, and ratings of perceived exertion (RPE) of nine older individuals while walking in water with those obtained while walking on dry land. Electromyography, stride frequency (SF), stride length (SL), oxygen uptake (over(V, ̇) O2), heart rate (HR), RPE (for breathing and legs, RPE-Br and RPE-Legs, respectively), and blood lactate concentration (BLa) were measured. There were no significant differences in the over(V, ̇) O2, HR, RPE-Br, RPE-Legs or BLa while walking in water and on dry land (moderate and fast speeds). Both in water and on dry land, the over(V, ̇) O2 -HR, over(V, ̇) O2-walking speed, and HR-walking speed relationships were significantly correlated. The SF and SL while walking in water were significantly lower than on dry land. The %MVCs while walking in water were all significantly lower than on dry land within each speed condition. Conversely, the over(V, ̇) O2, HR, RPE-Br and RPE-Legs, BLa, SL, and %MVC (the rectus femoris, vastus medialis, biceps femoris, and gastrocnemius) while walking in water were significantly higher than on dry land at the same speeds. In conclusion, walking in water elicits higher muscle activities, higher cardiorespiratory responses, and increased perceived exertion levels in older adults than walking on dry land at the same speed.
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UR - http://www.scopus.com/inward/citedby.url?scp=45849094074&partnerID=8YFLogxK
U2 - 10.1016/j.jelekin.2006.12.009
DO - 10.1016/j.jelekin.2006.12.009
M3 - Article
C2 - 17363276
AN - SCOPUS:45849094074
VL - 18
SP - 581
EP - 590
JO - Journal of Electromyography and Kinesiology
JF - Journal of Electromyography and Kinesiology
SN - 1050-6411
IS - 4
ER -