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Vernier Software and Technology
Vernier Software & Technology

Grip Strength and Muscle Fatigue

Figure from experiment 17 from Human Physiology with Vernier

Introduction

Skeletal muscle is composed of bundles of individual muscle fibers and has unique properties which allow it to respond to stimuli by contracting. Individual muscle fibers respond to a stimulus (e.g., nerve impulse) with an all or none response, meaning the muscle fiber contracts to its maximum potential or not at all. Once a muscle has contracted, relaxation must occur before it can contract again. There are three basic types of muscle fibers: slow fibers, fast fibers, and intermediate fibers. Fast fibers contract quickly but for a relatively short duration. Slow fibers respond less rapidly, but are capable of a more sustained contraction. The strength of contraction of a whole muscle is dependent on the number of muscle fibers involved.

Objectives

In this experiment, you will

  • Obtain graphical representation of the force exerted by your hand while gripping.
  • Observe the change in hand strength during a continuous grip over time.
  • Observe the change in hand strength during rapid, repetitive gripping.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Standards Correlations

See all standards correlations for Human Physiology with Vernier »

Experiment 17 from Human Physiology with Vernier Lab Book

<i>Human Physiology with Vernier</i> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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