Content » Vol 22, Issue 1

Original report

Effect of forced running on rat skeletal muscle with acrylamide neuropathy

Okajima Y, Maloney FP
Division of Rehabilitation Medicine, University of Arkansas for Medical Sciences, Little Rock 72205
DOI: 10.2340/1650197790222932

Abstract

This study was performed to evaluate the effect of prolonged forced running on rat lower limb muscles with acrylamide neuropathy. Twenty-four 4-week-old rats were divided into three groups of eight rats. Acrylamide was given to two groups of sixteen rats to induce mild paralysis. Eight rats with acrylamide injections were forced to run 3,200 m/day on a treadmill for five weeks. Running activities slowed the rate of body weight gain and aggravated paralysis. Although the wet weight of tibialis anterior (TA) and extensor digitorum longus (EDL) muscles was reduced by running, that of soleus (SOL) muscles was unchanged. The ratio of their weight to their body weight (BW) remained constant regardless of exercise. Protein content (PC) of muscles was not altered by exercise, either. We postulated that exercise-induced worsening of paralysis in acrylamide neuropathy rats was not caused by muscle pathology. Deterioration of neuropathic condition due to exercise was suggested.

Lay Abstract

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