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What is measured by the amount of time a muscle group can sustain a contraction?
Muscle strength measures the amount of force a muscle can exert during contraction. The determining factor of strength is the fast twitching fibers.
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!
Does the Z line shorten during muscle contraction?
Yes, the Z line shortens during muscle contraction.
What happens to a muscle contraction if there is an excess amount of either Ca2 plus or ATP present during the contraction?
During muscle contraction the actin heads pull the sarcomere closed
The muscle decreases in muscle length during contraction but tension is the same?
Isotonic contraction
What is isokinetic peak-torque?
Isokinetic peak torque refers to the maximum amount of force that a muscle can generate at a constant speed during an isokinetic muscle contraction. It is commonly measured during strength testing to assess muscle function and performance.
What happens in spinal instrumentation?
During the fusion operation, a set of rods, wires, or screws will be attached to the spine. This instrumentation allows the spine to be held in place while the bones fuse.
During muscle contraction....... attach to ...............?
Troponin
In muscles chemical energy changes to what during contraction?
Muscles turn chemical energy into heat and work during contraction. Straight from the science book.
What band shortens during skeletal muscle contraction?
during skeletal muscle contraction ,I band and H zone shortens. Sarcomeres
Is it true or false that during isometric contraction the energy used appears as movement?
False. During isometric contraction, there is no visible movement because the muscle is generating force without changing in length. The energy used in isometric contraction is primarily used to maintain muscle tension and stability.
When are the atrioventricular valves closed?
During heart contraction
