Net force analysis during streamlined glide, dolphin kick, and front crawl at high velocities in competitive swimming : implications for optimal propulsion timing

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Authors: Tsuyoshi Takeda, Daiki Koga, Takaaki Tsunokawa, Yasuo Sengoku, Hideki Takagi
Cited by: 1
References: 20

Abstract

. These intersection points indicate the optimal timing for initiating propulsive actions to minimise deceleration during the post-start and post-turn phases. A conceptual model was proposed to explain the phase transition strategy based on velocity-dependent net force profiles. Although individual variation was observed, most swimmers exhibited similar trends, supporting the applicability of the model. These findings provide a fluid mechanical perspective for optimising underwater strategies and may contribute to enhanced start and turn performance in competitive swimming.

Fields of Study & Subjects

Sports Performance and Training Motor Control and Adaptation Balance Gait and Falls Prevention

Publication details

Journal / source
Sports Biomechanics
Publisher
Informa UK Limited
Pages
1–20
Publication date
23 February 2026
Language
EN