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Home Q & A Board Laboratory Help Upper-Year Courses
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lechelle86 lechelle86
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12 years ago
I NEED HELP ANSWERING ACTIVITY 7 INVESTIGATING MUSCLE FATIGUE:
-Why does the force begin to decrease with time?

Turning the stimulator off allows a small measure of recovery. The muscle will produce for a longer period if the stimulator is briefly turned off than if the stimulations were allowed to continue without interruption. Explain why.

Describe the diffedrence bw the curent tracing and the myogram generated in step 6.

INVESTIGATING ISOMETRIC CONTRACRTION

PASSIVE FORCE
ACTIVE FORCE
TOTAL FORCE

Explain the dip in the total force.
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#1
12 years ago
Answer to your second question
2. When a muscle fiber contracts, conditions in the sarcoplasm change. Energy reserves are consumed, heat is released, and, if the contraction was at its peak levels, lactic acid generated.IN the recovery period, the conditions in muscle fibers are returned to normal, preexertion levels.
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