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February 27, 2026Open Access

Predictive regression analysis linking right hip angle to javelin throw power position efficacy

Key Points

The research aims to determine how the right hip angle at the javelin throw power position affects overall throwing performance.
Analyzed data from 20 senior national-level Indian athletes aged 20-28.
Used high-speed videography (240 fps) to capture kinematic variables.
Conducted predictive regression analysis to establish performance relationships.
The regression model showed significant explanatory power (R² = .387).
Right hip angle accounts for 38.7% of the variance in throwing performance.
Optimal hip angles (90-120°) improve kinetic chain efficiency, enhancing throw distances.

Abstract

This study employs predictive regression analysis to examine the relationship between right hip angle at the javelin throw power position and overall throwing performance among 20 senior national-level Indian athletes aged 20-28. High-speed videography (240 fps) captured via Kinovea software quantified kinematic variables, revealing a significant model (R = .622, R² = .387, F = 11.353, p = .003) where right hip angle explains 38.7% of performance variance. The regression equation, Performance = -0.495 + 0.234 × (Right Hip Angle), confirms optimal extension (90-120°) enhances kinetic chain efficiency, aligning with biomechanical principles of proximal-distal energy transfer. Findings validate hip angle as a trainable biomarker for power position efficacy, offering coaches targeted interventions to elevate throw distances beyond 85m. Limitations include moderate explanatory power, suggesting multivariate extensions incorporating release velocity.

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