1. Define isometric contraction and describe an example Isometric contraction occurs when the muscle is activated but held at a fixed length. An example would be the muscles of the leg when holding oneself in a squat position.
2. When the current reached the following stages, what proportion of fibers in the muscle were contracting?

a) at threshold
b) at the maximal stimulus
c) above the maximal stimulus

Question

korey3878 korey3878

04-02-2020
Biology

contestada

1. Define isometric contraction and describe an example Isometric contraction occurs when the muscle is activated but held at a fixed length. An example would be the muscles of the leg when holding oneself in a squat position.
2. When the current reached the following stages, what proportion of fibers in the muscle were contracting?

a) at threshold
b) at the maximal stimulus
c) above the maximal stimulus

Respuesta :

Otras preguntas

is anyone in brainly here? if there is, say something in the comments

Why is it useful for historians to craft historical narratives?

1Dyne = How many Newtons??

Given: In Parallelogram ABCD, • mA = (7y+13)º • m2B = (106 - 2x)º • mC = (10y - 32)º • m2D = (3x – 4)º What are the values of x and y

In the following hypothetical example, a researcher applies varying amounts of fertilizer (0, 2, 4, 8, 10 units) to potted tomato plants. All other variables th

Select the correct answer. Lewis works as the head of an emergency services unit in the United States. He and his teammates use a geographic information system

Which of the following terms is a comparison between the number of copies of a particular allele and the number of copies of that gene? A. Allele dominance B. A

challenges of teaching mathematics in 21st century

What was a goal of the Black Power movement? O A. To work with whites to end racial discrimination B. To move African Americans to all black neighborhoods C. To

oresegunabisola oresegunabisola · Answer 1 · 2020-02-04T10:55:18+01:00

Answer:

1. Isometric contraction is best defined as a contraction that is not associated with any movement. It can be used by the therapist to increase strength and elasticity.

An example of an isometric contraction is carrying an object in front of you. The weight of the object would be pulling downward, but your hands and arms would be opposing the motion with equal force going upwards. Since your arms are neither raising or lowering, your biceps will be isometrically contracting.

2.

a. At threshold just a few muscle fibers are being recruited.

b. At the maximal stimulus is 100% of recruitable fibers are contracting.

c. Above maximal stimulus, the number of contracting fibers cannot increase.

Explanation: