Transference of 3D accelerations during cross country mountain biking.

摘要: Investigations into the work demands of Olympic format cross country mountain biking suggest an incongruent relationship between done and physiological strain experienced by participants. A likely but unsubstantiated cause is extra demand muscle damping terrain/surface induced vibrations. The purpose this study was to describe vibration mechanics their interaction with terrain, bicycle rider during a race pace effort on bike track, both 26″ 29″ wheels. Participants completed one lap track using wheels, at pace. Power, cadence, speed, heart rate geographical position were sampled logged every second for control purposes. Tri-axial accelerometers located rider, recorded accelerations (128Hz) used quantify vibrations whole over terrain sections (uphill downhill). While there no differences in power output (p=0.3062) (p=0.8423), time complete significantly (p=0.0061) faster wheels despite increased larger (p=0.0020). Overall accelerometer data (RMS) showed location (p<0.0001), specifically point interface bike-body compared those lower back head. reduction head are imperative injury prevention demonstrates additional non-propulsive, muscular, challenge riding. Stress greatest downhill as acceleration locations greater when uphill sections, thus possibly prevent recovery processes that may occur non-propulsive load.