Saved tetanus Drag the text blocks below into their correct order. concentrically No immediate movement of the bar is demonstrated despite the production of muscle force, which first demonstrates contraction. isometric When ready, he initiates neural recruitment of his ankle, knee, and hip extensors first by increasing the potentials to the lower-limb extensors of action motor units Voluntarily exerting more effort, additional recruited, which results in the production of greater forces. are frequency 46 eccentric Progressively increasing force production allows the force to exceed that of the bars inertia, and the ankle, knee, and hip extensors begin to contract summation twitches



Answer :

Through the cycling of actin and myosin cross-bridges, a muscle fibre produces tension.

The muscle may lengthen, shorten, or stay the same when under tension. Although the word "contraction" connotes shortening, it actually refers to the creation of tension within a muscle fibre when used in relation to the muscular system. The variations in muscle length during contractions distinguish a variety of muscle contractions.

Muscles shrink during a concentric contraction, which is a type of muscle contraction used to overcome resistance. A concentric contraction of the biceps, for instance, would force the arm to bend at the elbow when carrying a heavy object, moving the object towards the shoulder. Sarcomere, muscle fibre, and muscle are all compressed by cross-bridge cycling.

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