Preprint Brief Report Version 1 Preserved in Portico This version is not peer-reviewed

Short-Term Influence Analysis of Different Instep Weights on 50 Meters Speed and Running Time

Version 1 : Received: 21 September 2022 / Approved: 22 September 2022 / Online: 22 September 2022 (10:30:24 CEST)

How to cite: Esquirol Caussa, J.; Cos Morera, M.À.; Padullés Riu, J.M.; Sánchez Lloansí, M.; Méndez Olavide, M.; Tinajas Arrontes, C.; García San Emeterio, M.; Palmada Andreu, P. Short-Term Influence Analysis of Different Instep Weights on 50 Meters Speed and Running Time. Preprints 2022, 2022090340 (doi: 10.20944/preprints202209.0340.v1). Esquirol Caussa, J.; Cos Morera, M.À.; Padullés Riu, J.M.; Sánchez Lloansí, M.; Méndez Olavide, M.; Tinajas Arrontes, C.; García San Emeterio, M.; Palmada Andreu, P. Short-Term Influence Analysis of Different Instep Weights on 50 Meters Speed and Running Time. Preprints 2022, 2022090340 (doi: 10.20944/preprints202209.0340.v1).

Abstract

Instep weights cause mechanical changes, modifying muscle activity and changing ground plantar support. 30 semi-professional sprinters, randomized in 3 groups [no-weight, Ascending (50, 100, 150 and 200g), Descending (200, 150, 100 and 50g)] run 6 consecutive 50-meter series at maximum speed (first and sixth without weights); partial, total times and speed were analyzed. Instep weights were safe and well tolerated. 6th series speed decreased except in men’s ascending group, who achieved a lower time in sixth compared to first series. Weights presented in ascending order in men during warm-up could improve running time. Instep weights neuromuscular effects could compensate men’s tiredness in last series; weights could be included in training methodologies. Men training weights presented in ascending order may provide better results.

Keywords

Locomotion; Motor Control; Muscle Synergies; Physiology; Running

Subject

MEDICINE & PHARMACOLOGY, Sport Sciences & Therapy

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