Chapter 9, Problem 12CYU

Summary Introduction

To review:

The muscle contractions in Jay biceps muscles while competing in a chin-up competition. The muscle contractions when body begins to move upward toward the bar. The muscle contractions when body begins to approach the mat.

Introduction:

The muscle contraction is the generation of tension-generating sites within muscle fibers. Muscle tension can be produced without changes in muscle length. The theory of muscle contraction is called sliding filament model which occurs when sarcomeres shorten, as thick and thin filaments slide past each other.