INVESTIGATING THE SEATED DOUBLE POLING CYCLE: IDENTIFYING BASELINE MEASURES FOR THE PREPARATION PHASE

Abstract

The purpose of this study was to identify baseline measures (BM) for the preparation phase (PREP) within the linear stroking cycle for the sport of sledge hockey. The addition of this phase to seated double poling is unclear biomechanically; full arm extension to pick-plant. A validated solid-static prototype mimicking the average single-armed adult male with dynamic shoulder joint was used to determine BM in 3 dimensions and initial pick-impact forces (GRF). Results indicated that average peak GRF occurred prior to 5.0x10-3s post initial contact; Fy=179N, Fz=515N and Fx=573N. Evidence indicated PREP should initiate slightly below the horizon in order to produce the greatest non-contracting force for sledge propulsion. Isolated data provides insight to the biomechanics of the dynamic limb within PREP assisting with its importance to the complete cycle.