A contraction that causes a muscle to lengthen rather than shorten is called
A. eccentric.
B. isotonic.
C. static.
D. isokinetic.
my answer to this question is A is it right?
correct!
Yes, you are correct. The contraction that causes a muscle to lengthen rather than shorten is called an eccentric contraction. To arrive at this answer, you can break down the question and use your knowledge of muscle contractions as follows:
1. Start by understanding the meaning of the term "contraction." In the context of muscles, this refers to the shortening or tightening of a muscle.
2. Next, consider the options provided.
- Option A: "eccentric" - This term is commonly used to describe muscle contractions in which the muscle lengthens while under tension.
- Option B: "isotonic" - While isotonic contractions involve muscle changes in length, they do not specifically refer to the lengthening aspect of the contraction, so this option can be eliminated.
- Option C: "static" - This term typically refers to a stationary or non-moving state, so it does not apply to muscle contractions involving lengthening or shortening.
- Option D: "isokinetic" - Isokinetic contractions involve maintaining a consistent muscle speed throughout the contraction, but they do not specifically refer to whether the muscle is lengthening or shortening.
By considering these options and their respective meanings, you can deduce that the correct answer is indeed A, eccentric contraction.