Chapter 19.5, Problem 3LO

Summary Introduction

To discuss:

The types of exercise that require more fast-twitch versus slow-twitch muscle fibers

Introduction:

The inherent characteristics of muscle fibers in the specific muscles determine the manner in which the skeletal muscles adapt to repeated stimuli. The fiber constitution of the muscles also influences the manner in which the athletes adapt to the training and exercise. The human body has three types of muscle fibers, namely, Type I or the slow-twitch fibers, Type II or fast-twitch type which is further divisible into Type A and Type B. During the course of exercise as muscles produce force, by the means of recruitment of motor units along a gradient.