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When utilizing isokinetic machines a true isokinetic contraction occurs at what stage?
When the pre set isokinetic speed is reached. This means the contraction is only isokinetic once the speed is achieved and in real terms maintained. In truth the isokinetic contraction is actually a window of the total motion used in the contraction not the whole contraction. This is because it takes some motion to reach the speed and some to decelerate at the end from the speed. The part in the middle (between acceleration and deceleration) s know as the isokinetic range (of contraction)
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What is muscle contraction without muscle shortening is what kind of contraction?
Isometric contraction. This type of contraction occurs when the muscle generates tension without changing its length, such as when holding a weight in a fixed position.
What is the difference between thermal expansion and contraction?
Thermal expansion is the increase in size of a material when it is heated, while thermal contraction is the decrease in size of a material when it is cooled. Expansion occurs due to increased kinetic energy of particles causing them to move further apart, while contraction occurs as particles lose kinetic energy and move closer together.
How does length contraction occur in relation to an object's motion, with the understanding that it only happens along a direction perpendicular to the object's motion?
Length contraction occurs when an object moves at high speeds, causing it to appear shorter in the direction of its motion. This contraction only happens along the direction of motion, not perpendicular to it.
What provides the energy needed for muscle contraction?
Muscle contraction is powered by adenosine triphosphate (ATP). ATP is produced by breaking down glucose through cellular respiration, a process that occurs in the mitochondria of muscle cells. ATP provides the energy necessary for myosin and actin filaments to slide past each other, resulting in muscle contraction.
What is the definition of thermal contraction?
Thermal contraction is the decrease in size (volume, length, or density) of a material due to a decrease in temperature. It occurs because the atoms or molecules within the material have less kinetic energy at lower temperatures, resulting in them coming closer together.
What is a sustained muscle contraction?
Occurs when acetylcholine (ACh) accumulates in the neuromuscular junction. It is called a tetanic contraction.
What is muscle contraction without muscle shortening is what kind of contraction?
Isometric contraction. This type of contraction occurs when the muscle generates tension without changing its length, such as when holding a weight in a fixed position.
What is the start of the contraction phase in a business cycle called?
Similarly, a period of recession occurs at the start of the contraction phase.
What muscle contraction occurs in the biceps brachii during the upward phase of the bicep curl?
a concentric contraction- a concentric contraction involves the muscle length, shortening during a contraction! YA-trick-YA!
The ventricle contraction of the heart occurs iummediately after depolarization of the?
purkinje fibers
When a muscle contraction occurs?
your muscles moves, moving ligaments and tendons
Breathing occurs due to the contraction and relaxation of the muscles between the ribs and the?
diaphragm....
Brief delay that occurs between application of the stimulus and the beginning of contraction?
Latent Period
What allows you to inhale and exhale?
Inhalation requires the contraction of the diaphragm, and exhalation occurs when it relaxes.
What contraction occurs in the downward phase of a press up?
contractions in the downward phase of a pressup.
Is the 2nd heart sound in the period of isometric contraction?
no. it occurs at the beginning of isovolumetric relaxation.
What type of muscle contraction occurs when force is exerted against an immovable object?
isometric
