The Surprising Reason Muscles Get Tired

Learning Resource Type

Classroom Resource

Subject Area

Physical Education

Grade(s)

9, 10, 11, 12

Overview

This TED-Ed learning activity unpacks muscle fatigue resulting from lifting weights. The first time feels easy, but each lift takes more and more effort until you can’t continue. Inside your arms, the muscles responsible for the lifting have become unable to contract. What’s going on? Christian Moro explains how exactly our muscles operate, and what causes them to become fatigued.

The activity includes a video, multiple choice and open-ended questions, additional resources to dig deeper, and a guided discussion.

This alignment results from the ALEX Health/PE COS Resource Alignment Summit.

Physical Education (2019) Grade(s): 09-12 - Beginning Kinesiology - Level 1

PE19.BK1.3.8

Identify components of a personal fitness plan.

Physical Education (2019) Grade(s): 09-12 - Beginning Kinesiology - Level 2

PE19.BK2.3.7

Design and put into effect a strength and conditioning program that develops balance in all muscle groups and supports a healthy, active lifestyle.

Physical Education (2019) Grade(s): 09-12 - Strength and Conditioning - Level 1

PE19.SC1.1.2

Identify skills and components needed to design an individualized strength and conditioning program.

Physical Education (2019) Grade(s): 09-12 - Strength and Conditioning - Level 1

PE19.SC1.2.2

Identify skills and components an individual needs to participate successfully in strength and conditioning.

CR Resource Type

Learning Activity

Resource Provider

https://ed.ted.com

License Type

Attribution Non-Commercial No Derivatives

Accessibility

Video resources: includes closed captioning or subtitles
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