Fyffe Fitness

What is the length-tension relationship? Simply put, single muscle fibers do not produce the same amount of isometric force when they are activated at different static lengths. Muscle fibers produce low forces at short lengths, progressively greater force at moderate lengths, and sharply increased forces at long lengths . ... The force that muscle fibers produce at any given muscle fiber length is due to both active and passive mechanisms (which produce active and passive force). Active Force = Energy Metabolism (chemical reactions) are required to produce force. Passive force = Muscle fibers lengthen elastically when pulled apart which produces tensile forces without any chemical reactions . A single muscle fibers force production is greater during strength training when the passive elements are able to contribute to tensile force in the contraction. How does the length-tension relationship affect muscle fiber hypertrophy? When muscle fibers produce force and the passive structures are able to contribute to force production (and therefore increase mechanical loading on individual muscle fibers), this has two effects. 1. Overall greater hypertrophy the overall amount of force that can be exerted by the muscle fiber is greater, which causes greater mechanical loading, and therefore more muscle growth. 2. Preferential increase in fiber length when muscle fibers experience high levels of loading on their passive elements (by contracting at long muscle lengths or by contracting eccentrically ), they respond by increasing preferentially in length rather than diameter. This is genuine muscle growth, and leads to an overall increase in mass. . . . . . . . . . . . #fitness #gym #fit #workout #fitnessmotivation #motivation #bodybuilding #training #health #fitfam #sport #healthy #lifestyle #crossfit #gymlife #love #personaltrainer #muscle #instagood #exercise #healthylifestyle #instafit #fitspo #fitnessmodel #weightloss #fitnessgirl #strong #yoga #cardio #bhfyp

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