Asked by CHARLANI MANOI on May 25, 2024
Verified
An isotonic contraction is described as
A) action potential frequency is high enough that no relaxation of muscle fibers occurs.
B) a muscle produces constant tension during contraction.
C) a muscle produces an increasing tension during contraction.
D) a muscle produces increasing tension as it shortens.
E) a muscle produces tension, but the length of the muscle is increasing.
Isotonic Contraction
A type of muscle contraction in which the muscle changes length while the tension remains constant, usually resulting in movement.
Action Potential
A rapid increase and decrease in the electrical charge across a cell's membrane, allowing nerve cells to communicate.
Muscle Tension
The force generated by a muscle or group of muscles during contraction, resisting stretching or loading.
- Become proficient in identifying the different muscle contraction types (isotonic, isometric, concentric, eccentric) and understanding their characteristics.
Verified Answer
MC
Marc chester RomuloMay 26, 2024
Final Answer :
B
Explanation :
An isotonic contraction is when a muscle generates force and changes length, either shortening or lengthening, but the tension remains constant throughout the contraction. This is typical of most daily movements, where the load on the muscle is constant as it moves.
Learning Objectives
- Become proficient in identifying the different muscle contraction types (isotonic, isometric, concentric, eccentric) and understanding their characteristics.