The Muscle Action Spectrum Flashcards
Concentric -
- moving in opposite direction of force, accelerates or produces force; muscle shortens.
Eccentric
muscle developes tension while lengthening; decelerates force.
Isometric
muscular force equal to resistive force, stabilizes force; no change in muscle length.
Length-tension relationship
resting length of a muscle and the tension it can produce at that length.
Force-couple
muscles working together to produce movement
Force-velocity curve
as the velocity of a contraction increases, concentric force decreases and eccentric force increases.
Neuromuscular efficiency
ability to
produce and reduce force, and stabilize the
kinetic chain in all three planes of motion.
Structural efficiency
alignment of the musculoskeletal system that allows center of gravity to be maintained over a base of support.
Davis’s law—
soft tissue models along the lines of stress.
Autogenic inhibition
neural impulses that sense tension are greater than the impulses that cause muscles to contract; provides inhibitory effect to muscle spindles.
Reciprocal inhibition
simultaneous contraction of one muscle, and relaxation of its antagonist to allow movement.
Relative flexibility
—tendency of the body to seek the path of least resistance.
Pattern overload
consistently repeating the same motion; places abnormal stresses on the body.
Postural distortion patterns
predictable patterns of muscle imbalances.
Altered reciprocal inhibition
muscle inhibition caused by a tight agonist, which inhibits its functional antagonist.
