Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892



Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Discuss Concepts A coach must train young athletes for the 100-meter sprint. They need muscles specialized for speed and strength, rather than for endurance. What kinds of muscle characteristics would the training regimen aim to develop? How would it be altered to train marathoners?

Summary Introduction

To review:

The right kind of muscle characteristics for a short but powerful run, and the alteration in training, in case of marathon run.


Specialized muscles are required for speed and strength rather than endurance.

(a) For a fast yet powerful running such as a 100-meter sprint, fast anaerobic types of muscles containing fibers with high concentrations of glycogen, less mitochondria, and limited blood supply are required. Such muscles, susceptible to fatigue but faster than other muscle fibers, are capable of generating rapid and powerful contractions...

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