Results 161 to 170 of about 292,853 (200)
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Analysis of jumping/falling distance from a height
Forensic Science International, 2006The kinematic motion analysis of 50 jumps from a height of 5m demonstrated distinguishable maxima of jumping distances between passive and active jumps (1.0-3.4 and 3.7-7.1 m, respectively). The variation of several parameters concerning the 'take-off' mechanism showed less influence regarding the jumping distances.
F, Wischhusen +4 more
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Journal of Strength and Conditioning Research, 2018
Abstract Barker, LA, Harry, JR, and Mercer, JA. Relationships between countermovement jump ground reaction forces and jump height, reactive strength index, and jump time. J Strength Cond Res 32(1): 248–254, 2018—The purpose of this study was to determine the relationship between ground reaction force (GRF) variables to jump height, jump time,
Barker, Leland A. +2 more
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Abstract Barker, LA, Harry, JR, and Mercer, JA. Relationships between countermovement jump ground reaction forces and jump height, reactive strength index, and jump time. J Strength Cond Res 32(1): 248–254, 2018—The purpose of this study was to determine the relationship between ground reaction force (GRF) variables to jump height, jump time,
Barker, Leland A. +2 more
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Increase in Jumping Height Associated with Maximal Effort Vertical Depth Jumps
Research Quarterly for Exercise and Sport, 1987Abstract In order to assess if there existed a statistically significant increase in jumping performance when dropping from different dropping heights, 32 young males, ages 19 to 26, performed a series of maximal effort vertical jumps after dropping from a variable height step onto a force plate. Five trials were performed from each of eight heights of
Bedi J.F. +3 more
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Influence of lumbar spine extension on vertical jump height during maximal squat jumping
Journal of Sports Sciences, 2013The purpose of this study was to determine the influence of lumbar spine extension and erector spinae muscle activation on vertical jump height during maximal squat jumping. Eight male athletes performed maximal squat jumps. Electromyograms of the erector spinae were recorded during these jumps. A simulation model of the musculoskeletal system was used
Yoann, Blache, Karine, Monteil
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Segmental Limb Length And Vertical Jump Height
Journal of Strength and Conditioning Research, 2010AbstractTo examine the role that lower extremity segmental length plays on vertical jump displacement. Previous research examining the relationship between segmental limb length and vertical jump ability revealed poor correlations.
Black, Tony +2 more
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DO MALE AND FEMALE SUICIDES JUMP FROM DIFFERENT HEIGHTS?
Perceptual and Motor Skills, 2003Analysis of data from a small sample of suicides in India indicated no sex difference in the heights from which men and women jumped.
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Sex Differences in the Height from which Suicides Jump
Psychological Reports, 2010Analysis of 321 suicides by jumping in five cities and provinces in China indicated that men and women who died from their suicidal actions jumped from similar heights.
Shi-Wei, Mao, David, Lester
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Some results on constrained maximal height jumps
1980 19th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes, 1980Recently, there have been a number of attempts to apply optimal control theory to the analysis of animal and human locomotion[1,2,3]. These attempts have been Motivated by problems in prosthesis design, rehabilitation engineering, and sports and by the belief that optimal control theory is a useful technique for the elucidation of complex control ...
W. Levine +3 more
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Injuries in attempted suicide by jumping from a height
Injury, 1988This study was undertaken to investigate the pattern of injuries and the management of 28 patients who attempted suicide by jumping from a height. Most of the patients had serious psychiatric disorders. All but two of the patients sustained multiple injuries. The most common injury patterns were fractures of the spine and lower extremities.
K, Katz +5 more
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Jump Shrug Height and Landing Forces Across Various Loads
International Journal of Sports Physiology and Performance, 2016The purpose of this study was to examine the effect that load has on the mechanics of the jump shrug. Fifteen track and field and club/intramural athletes (age 21.7 ± 1.3 y, height 180.9 ± 6.6 cm, body mass 84.7 ± 13.2 kg, 1-repetition-maximum (1RM) hang power clean 109.1 ± 17.2 kg) performed repetitions of the jump shrug at 30%, 45%, 65%, and 80% of ...
Suchomel, Timothy J. +2 more
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