Biomedical Engineering Reference
In-Depth Information
Subject A
1500
150
Subject B
1000
100
50
500
Subject C
0
0
0
200
400
600
Contraction Velocity (mm/s)
Figure 11.16
Hill's curve in iso-contraction exercise
Results show that the power curve of subject A peaks at 173 W (450 deg/s), of
subject B at 93 W (350 deg/s), and of subject C at 47 W (230 deg/s).
11.6 CONCLUSIONS
The isokinetic exercise machine that we developed by using rapid response of
the MR fluid brake was effective in solving problems in which the isokinetic
contraction area narrows as contraction speed increases. We also attempted to
the iso-contraction exercises, taking advantage of the rapid response. As a result,
the system has come closer to the theoretical basis of isokinetic contraction, and
isokinetic contraction area is made wider for rapid exercises than in conventional
isokinetic contraction. This enables us to elaborate power-speed properties of
human more accurately.
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