Histological examination of fiber number among muscles in the hind limbs of mice

Abstract EN

The purpose of this study was to determine whether or not the fiber number in one muscle or an animal (relative to Fiber number in the muscle or other animals) could be used to indicate relative fiber in other muscles within the animal.

Twenty male mice selected for the largest variation for fiber number in the soleus muscle were used as subject for the study.

Fiber number was then determined for the following 6 muscles in each of the animals : P,G,RF,VL,TA and BF correlation coefficients were used to make comparisons to relative fiber number among muscles and between individual muscle and the total fiber number for 7 muscles used from each animal.

The results indicated that relative fiber number from one muscle could predict relative fiber number from another muscle.

The comparisons of relative fiber number for each individual muscle to total fiber number indicated that each of the 7 muscles studied could be used to predict relative total fiber number.

The results of this study indicate that relative fiber number from a small muscle in the body can be used to predict relative total fiber number in the body.