l21: 21.1 “exploring muscle fatigue”. question: what effect does repeated exercise have on...
TRANSCRIPT
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L21: 21.1
“Exploring Muscle Fatigue”
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QUESTION:
What effect does repeated exercise have on skeletal muscles?
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HYPOTHESIS?
I believe….because….
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PROCEDURE:
See page 176 You will be squeezing for a
total of 2 ½ minutes, recording your number of squeezes after each 30 seconds.
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DATA:NAME: TRIAL 1:
(30 sec)
TRIAL 2:
(30 sec)
TRIAL 3:
(30 sec)
TRIAL 4:
(30 sec)
TRIAL 5:
(30 sec)
Average:
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DATA:
Using your group’s average, construct a line graph.
Label the axes: X axis = time Y axis = # of squeezes
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DATA:
1. What happened to the number of squeezes made per 30-second trial?
2. How did your muscles feel at the end of the exercise?
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3. On the basis of what you have learned about how your body releases and uses energy, explain why you think muscles tire.
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VOCABULARY:
Energy Muscle fatigue
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CONCLUSION:
Be sure to look back at your original question.
Write in complete sentences. Use your vocabulary words in
your conclusion.