title: THE IMPORTANCE OF NEGATIVE ACCELERATION OF THE LOAD IN FREE-STYLE LIFTING.
abstract: 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.
authors: 1 Department of Physical Therapy, University of Illinois at Chicago, USA.
authors: Jordan
authors: J
authors: Trafimow
authors: 1 Department of Physical Therapy, University of Illinois at Chicago, USA.
authors: Joseph
authors: J
authors: Xaygnaraj
authors: 2 Department of Psychology, New Mexico State University, Las Cruces, New Mexico, USA.
authors: David
authors: D
authors: Trafimow
authors: 1 Department of Physical Therapy, University of Illinois at Chicago, USA.
authors: Alexander S
authors: AS
authors: Aruin
mesh_terms: D000054:Acceleration; D000328:Adult; D001696:Biomechanical Phenomena; D001835:Body Weight / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D014891:Weight Lifting / Q000502:physiology*