| Keywords |
Voluntary exercise ; Involuntary exercise ; Oxidative stress ; Muscle development ; Physiological parameters |
| Abstract |
The aim of this study is to clarify the physiological effects from these two different ways of aerobic exercise methods in various parameters. Thirty male rats(20 wks old) completed 6 wks of exercise. The wheel exercise was performed with counting of rotations then their total working distance(apprx 400 m/day) was applied same to treadmill exercise. To measure the oxidative stress level, rats were decapitated right after the daily exercise bout. Plasma samples were used for determination of Reactive Oxygen Metabolites(d-ROMs) and Biological Antioxidant Potential(BAP) test. To compare muscle properties, we extracted five muscles(soleus, plantaris, Extensor Digitorum Longus(EDL), Flexor Hallucis Longus(FHL), Tibialis Anterior(TA)) and then measured each muscle weight and the enzyme activity of Citrate Synthase(CS), especially in plantaris. There was no significant difference in d-ROMs test, however, in the BAP test, treadmill and wheel groups showed higher value than control group(p<.05). There were no significant differences in muscle weight. In CS activity, both exercise groups showed significant increase, but no significant difference between these two groups(p<.05). Wheel group showed the highest value between groups. Even though most of results showed no significant difference, the pattern in muscles morphology, oxidative stress, and aerobic exercise capacity may show slight difference. From these results, we have to consider the difference between ways of exercise according to the target variables and the purpose of research properly. |