The Importance of Negative Acceleration of the Load in Free-Style Lifting
Autor: | Alexander S. Aruin, Jordan H. Trafimow, Joseph Xaygnaraj, David Trafimow |
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Rok vydání: | 2015 |
Předmět: | |
Zdroj: | Perceptual and Motor Skills. 121:163-169 |
ISSN: | 1558-688X 0031-5125 |
DOI: | 10.2466/26.25.pms.121c14x9 |
Popis: | Lifters may use negative acceleration in lifting a very light load. Body kinematic data were recorded in 10 participants lifting a 114 g box. Vertical position and acceleration of the center of mass and angle of the thigh to a vertical line were calculated. Acceleration data between the positions of the body when the thighs were horizontal and as the knees extended to an angle of 45° indicated that negative acceleration was present at 68.9% of time points, more than predicted by chance. |
Databáze: | OpenAIRE |
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