How do we calculate the total force of resistance at a given time point?
Instant acceleration plus gravity acceleration times mass = total force Pg 79
How do we calculate torque
torque is equal to force times distance
how do we calculate momentum
velocity times mass
how do we calculate work
Force applied times distance moved
the rate of work
how do we calculate power
force applied times velocity or work divided by time
Most sports require maximal power out put rather then force T or F
The lowest tension can be developed during
a concentric contraction b isometric contraction e eccentric contraction
intermediate tension is achieved by a concentric contraction b isometric contraction e eccentric contraction
Greatest tension is achieved by a concentric contraction b isometric contraction c eccentric contraction
Positive power can be produced only by ______.
a reason for a decrease in velocity is to maximize the force of contraction. T or F
30% to 50% of isometric maximum describes a an increase in force with an increase in velocity b an increase in velocity with a decrease in force c an increase in force with an decrease in velocity d an decrease in force with a decrease in velocity
When muscle shortens of maximum shortening velocity this is = to the force of isometric contraction. T of F
Length tension effect plus muscle angle of pule = __________.
Describe the length tension effect
Muscle produces the greatest tension at near resting length.
Less tension in the muscle is produced above or below resting length Pg 83
The most efficient muscle function of torque is at _______%
During a complete range of motion all of the muscle force goes into producing that movement T or F
If not all the muscle force applied goes into producing the total ROM the remainder force is a applied at __________ or ________.
Dislocating force stabilizing force
explain the strength curve.
when velocity is constant resulting in zero acceleration resistance is completely in the _________
The point at which muscle contraction is likely to fail during lifting a weight is termed_________.
the sticking region is at low torque capabilities. T or F
the tendency of a force to rotate an object about an axis, fulcrum, or pivot
describe the stretch shortening cycle
eccentric contraction the potentiates concentric contraction.
"a wind up action in the opposite movement followed by the intended movement"
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