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During the eccentric contraction phase, cellular activity involves lengthening the muscle fibers while generating force. This phase creates tension in the muscle as it elongates, allowing for controlled movement and resistance against external forces. Additionally, cellular processes such as protein breakdown and remodeling contribute to muscle adaptation and strength gains.

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What does cellular activity do during the phase of concentric contraction?

During concentric contraction, cellular activity includes the shortening of muscle fibers, which generates force to move a load or overcome resistance. This process is fueled by the consumption of ATP and involves the sliding of actin and myosin filaments within the muscle fibers.


What is the function role of t tubules?

Enhance cellular communication passage for nervous stimulation during muscle contraction.


The muscle lengthens during?

The muscle lengthens during a process called eccentric contraction. In this type of contraction, the muscle generates force while being elongated, such as when lowering a weight or during the downward phase of a squat. Eccentric contractions are important for activities that require controlled movement and help to build muscle strength and stability.


What is the energy source of most cellular activity?

Adenosine triphosphate (ATP) is the main energy source for most cellular activities. It is produced during cellular respiration through the breakdown of glucose and other nutrients in the presence of oxygen. ATP stores and releases energy for various cellular processes, such as muscle contraction, protein synthesis, and active transport.


What joint actions occurring in a lateral raise during the concentric and eccentric phase?

To see eccentric contraction, look at the biceps curl with flexion around the elbow. As you lower a weight, you are working against resistance, letting the joint angle increase to lower that object under your control.The opposite is the concentric contraction were the arm is flexed upward to decrease the angle at the elbow.

Related Questions

What does cellular activity do during the phase of concentric contraction?

During concentric contraction, cellular activity includes the shortening of muscle fibers, which generates force to move a load or overcome resistance. This process is fueled by the consumption of ATP and involves the sliding of actin and myosin filaments within the muscle fibers.


What happens during an eccentric contraction?

During an eccentric contraction, a muscle lengthens while generating tension, typically occurring when it resists a force greater than its own contraction strength. For example, this happens when lowering a weight or during the downward phase of a squat. Eccentric contractions play a crucial role in controlling movement and absorbing shock, helping to prevent injuries. This type of contraction is characterized by a gradual increase in muscle tension while the muscle is elongating.


What is a Eccentric muscle contraction?

That is the negative portion of a movement. Lowering the weight during a bench press


What is the function role of t tubules?

Enhance cellular communication passage for nervous stimulation during muscle contraction.


What is the importance of motor unit stimulation duting an eccentric isotonic contraction?

The importance of motor unit stimulation during an eccentric isotonic contraction is to try and keep the unit as stable as possible. Otherwise, the unit may go haywire.


The muscle lengthens during?

The muscle lengthens during a process called eccentric contraction. In this type of contraction, the muscle generates force while being elongated, such as when lowering a weight or during the downward phase of a squat. Eccentric contractions are important for activities that require controlled movement and help to build muscle strength and stability.


What is scientific word use when a muscle gets longer and get shorter?

The scientific terms for these processes are "eccentric contraction" and "concentric contraction." During eccentric contraction, a muscle lengthens while generating force, often when resisting an external load. Conversely, during concentric contraction, a muscle shortens while actively generating force, typically when lifting or moving a load. Together, these actions are essential for muscle function and movement.


Can skeletal muscle contract without shortening?

Yes. One possibility is that the load on the muscle exceeds the tension produced by the muscle so that the muscle actually lengthens during contraction (eccentric contraction).


What is commonly used to produce ATP during skeletal muscle contraction?

creatine phosphate, anaerobic cellular respiration, aerobic cellular respiration


What is the correct phase order of the stretch shortening cycle?

The correct phase order of the stretch-shortening cycle is eccentric contraction, amortization phase, and concentric contraction. This sequence allows for energy storage during the eccentric phase, a brief pause to transition from lengthening to shortening, and then rapid muscle shortening in the concentric phase for powerful movement.


What must be present during cellular respiration?

Oxygen and fuel and activity.


What is the energy source of most cellular activity?

Adenosine triphosphate (ATP) is the main energy source for most cellular activities. It is produced during cellular respiration through the breakdown of glucose and other nutrients in the presence of oxygen. ATP stores and releases energy for various cellular processes, such as muscle contraction, protein synthesis, and active transport.