Amplitude of Biceps Femoris Activation and Triaxial Acceleration in a 50-Meter Test in Sprinters: Pilot Study
Source abstract
Abstract
Objective: To describe the relationship between bilateral electrical activity in the biceps femoris and the variation of triaxial acceleration in three 50 m sprints. Methods: Biceps femoris muscle activation and acceleration in the anterior–posterior, mediolateral, and superior–inferior axes were measured in three 50 m sprints in nine national-level sprinters. Results: There was significant asymmetry between both legs, and the variations between axes were significant between the anterior–posterior with respect to the lateral and superior–inferior, and between the lateral and superior–inferior (p < 0.05). Conclusions: Increased biceps femoris activation during running increases speed regardless of asymmetry in force application. In the maintenance of horizontal velocity, acceleration of the anterior–posterior axis is the most relevant and depends on the flexion-extension muscle actions contained in the lateral axis.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Sports Performance and Training · Shoulder Injury and Treatment · Muscle activation and electromyography studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Health and Functional Assessment, Catholic University of Valencia, 46900 Valencia, Spain
Department of Physical Preparation and Conditioning, Catholic University of Valencia, 46900 Valencia, Spain
Department of Physical and Sports Education, University of Valencia, 46010 Valencia, Spain
Department of Sports, Polytechnic University of Madrid, 28040 Madrid, Spain
Department of Sports Management and Physical Activity, Catholic University of Valencia, 46900 Valencia, Spain
Funding
Catholic University of Valencia
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