抄録 This study was designed to describe and clarify muscle activities which occur while
walking in water. Surface electromyography (EMG) was used to evaluate muscle activities in
six healthy subjects (mean age, 23.3±1.4 years) while they walked on a treadmill in water …

This study was designed to determine trial-to-trial and day-to-day reproducibility of isometric
force and electromyogram activity (EMG) of the knee extensor muscles in water and on dry
land as well as to make comparisons between the two training conditions in muscle activity …

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 …

The neuromuscular characteristics of the triceps surae and vastus lateralis muscles and
interactions between the pre-activation of these muscles and the muscle output itself during
ground contact were investigated during various types of stretch-shortening cycle muscle …

The primary purpose of this study was to examine whether walking backward in water and
walking backward on dry land elicit different electromyographic (EMG) activities in lower-
extremity and trunk muscles. Surface EMG was used to evaluate muscle activities while six …

The previously proposed maximum dynamic output hypothesis (MDO: ie the optimum load
for maximizing the power output during jumping is one's own body) was tested on
individuals of various activity profiles. Forty males (10 strength-trained athletes, 10 speed …

Abstract Stretch–shortening cycle (SSC)-type fatigue is associated with acute and delayed
functional defects, and appears to be a useful model to reveal the flexibility of both central
and reflex adjustments to the contractile failure. SSC fatigue was induced in an experimental …

The effects of movement amplitude and contraction intensity on triceps surae and
quadriceps femoris muscle function were studied during repetitive hopping. In vivo forces
from Achilles and patellar tendons were recorded with the optic fibre technique from eight …

It is well known that in vitro muscles maximize their power output when acting against a
moderate resistance regarding their maximum strength. Similar behavior has been observed
from in vivo muscular systems in both single-joint and most of the multi-joint maximum …

Electromyographic activity (EMG) was recorded from the soleus muscles of adult rats during
treadmill locomotion after 7 and 14 days of hindlimb unloading, and after 7 days of recovery.
Observation of the rats indicated that treadmill locomotion was disrupted after unloading …