Medicine and Health Sciences Commons^™

Anticipatory Effects On Lower Extremity Neuromechanics During A Cutting Task, Carolyn M. Meinerz, Philip Malloy, Christopher Geiser, Kristof Kipp

Exercise Science Faculty Research and Publications

Context: Continued research into the mechanism of noncontact anterior cruciate ligament injury helps to improve clinical interventions and injury-prevention strategies. A better understanding of the effects of anticipation on landing neuromechanics may benefit training interventions.

Objective: To determine the effects of anticipation on lower extremity neuromechanics during a single-legged land-and-cut task.

Design: Controlled laboratory study.

Setting: University biomechanics laboratory.

Participants: Eighteen female National Collegiate Athletic Association Division I collegiate soccer players (age = 19.7 ± 0.8 years, height = 167.3 ± 6.0 cm, mass = 66.1 ± 2.1 kg).

Intervention(s): Participants performed a single-legged land-and-cut task under anticipated and unanticipated …

Patterns Of Barbell Acceleration During The Snatch In Weightlifting Competition, Kristof Kipp, Chad Harris

Exercise Science Faculty Research and Publications

The purpose of this study was to determine the association between weightlifting performance and vertical barbell acceleration patterns. Barbell kinematic time-series data were tracked from 18 snatches from six weightlifters during a regional weightlifting competition. These data were used to calculate vertical barbell accelerations. Time-series data were normalised to 100% of lift phase, defined as the time interval between barbell lift-off and maximum height of the barbell during each snatch lift. The time-series data were then entered into a pattern recognition algorithm that extracted principal patterns and calculated principal pattern scores. Body mass-normalised lift weight, which was used to quantify …