How Do Your Muscles Work?
1. Effect of Temperature on Muscle Action
Temperature Number of Fists
Normal 34
Freezing 20
2.Effect of Fatigue on Muscle Action
Trial # of Squeezes in 20 Seconds
1 41
2 40
3 36
4 34
5 34
6 33
7 33
8 31
9 30
10 30
ANALYSIS OF DATA:
1.What are the three changes you observed in a muscle while it is working
(contracted)?
The muscle gets hard, shorter, and has a bigger circumference.
2.What effect did the cold temperature have on the action of your hand muscles?
Explain.
It made muscle contraction slower.
Attempts Number
4. What effect did fatigue have on the action of your hand muscles? Explain.
As my muscles got fatigued it was harder to move them, and they moved slower, the more tired they got.
As the energy supply is depleted in the cells your muscles become fatigued and quits responding even when you are trying to make them work.
No comments:
Post a Comment