Which of the following refers to a static muscle contraction?
A. Isotonic
B. Isometric
C. Isokinetic
D. Eccentric
to this question i think the answer is c but i am not 100% sure?
B. The muscle contracts (or tries to) without changing length.
so B is the right answer ?
thanks
To determine which option refers to a static muscle contraction, you need to understand the definitions of the terms given. Here's an explanation for each option:
A. Isotonic: In an isotonic contraction, the tension (force) in the muscle remains constant as the muscle length changes. This can be either concentric (muscle shortening) or eccentric (muscle lengthening). It does not involve a static contraction.
B. Isometric: In an isometric contraction, the muscle generates tension without changing its length. This means there is no movement at the joint, and the muscle stays in a fixed position. Isometric contractions involve static muscle contractions.
C. Isokinetic: In an isokinetic contraction, the speed of movement remains constant while the muscle generates tension. Isokinetic exercises typically require specialized equipment to maintain a constant speed throughout the range of motion. Isokinetic contractions do not refer to static muscle contractions.
D. Eccentric: Eccentric contractions involve the lengthening of a muscle while it is under tension. As mentioned earlier, isotonic contractions can be both concentric and eccentric. However, eccentric contractions are not static muscle contractions.
Based on the explanations above, the correct answer to the question is B. Isometric, as it refers to a static muscle contraction where the muscle generates tension without changing its length.