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Muscle Fatigue Lab Activity: Human Body Study

Investigate muscle fatigue with this simple muscle fatigue lab activity. Students can graph their results or focus on the qualitative aspects of the activity. Likely you already have the required simple equipment needed for this memorable lab.


Questions Answered:

  • What happens when muscles contract over and over? 
  • What causes muscle cramps? 
  • How can you demonstrate muscle fatigue?


Topics Addressed:

  • Muscles become fatigued when used quickly and repetitively. 
  • Muscle fatigue can be measured.


Materials Needed

binder clips or clothespins, second timer


Answer Key

Yes! Plus extensive teacher notes address the many questions that come up. You shouldn’t have to do outside research on this topic unless you want to. Specific charts and graphic organizers have keys. 


Teaching Time 

About 20–30 minutes, longer with included writing assignment


Preparation Time



Target Audience

Middle School Students, Ages 11-14


Student Sheets

  • Scaffolded writing prompts & lab reporting 
  • Diagrams for labeling

Muscle Fatigue Lab Activity: Human Body Study


    Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

    Connect with me: If you have questions or problems, please let me know and I’ll get back to you as soon as I can.


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