The characteristics of takeoff movement and joint kinetics during the rebound-type jump using single-leg takeoff: comparison with the rebound-type jump using double-leg takeoff
نویسندگان
چکیده
منابع مشابه
Running backwards: soft landing-hard takeoff, a less efficient rebound.
Human running at low and intermediate speeds is characterized by a greater average force exerted after 'landing', when muscle-tendon units are stretched ('hard landing'), and a lower average force exerted before 'takeoff', when muscle-tendon units shorten ('soft takeoff'). This landing-takeoff asymmetry is consistent with the force-velocity relation of the 'motor' (i.e. with the basic property ...
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The EMG activity and mechanics of the running jump as a function of takeoff angle.
To characterize the electromyographic (EMG) activity, ground reaction forces, and kinematics were used in the running jump with different takeoff angles. Two male long jumpers volunteered to perform running jumps at different approach speeds by varying the number of steps (from 3 to 9) in the run-up. Subject TM achieved a greater vertical velocity of the center of gravity (CG) at takeoff for al...
متن کاملGender and bilateral differences in single-leg countermovement jump performance with comparison to a double-leg jump.
Expectations may be for both legs to function identically during single- and double-leg vertical jumps. However, several reasons might prevent this from occurring. The goals of this investigation were twofold: assess the presence of side-to-side jump height differences during single-leg jumps in a homogenous group of healthy subjects and determine if those with a jump height asymmetry possessed...
متن کاملWater striders adjust leg movement speed to optimize takeoff velocity for their morphology
Water striders are water-walking insects that can jump upwards from the water surface. Quick jumps allow striders to avoid sudden dangers such as predators' attacks, and therefore their jumping is expected to be shaped by natural selection for optimal performance. Related species with different morphological constraints could require different jumping mechanics to successfully avoid predation. ...
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ژورنال
عنوان ژورنال: Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences)
سال: 2012
ISSN: 1881-7718,0484-6710
DOI: 10.5432/jjpehss.11036