1. Which Strength Manifestation Is More Related to Regional Swimmers' Performance and In-Water Forces? Maximal Neuromuscular Capacities Versus Maximal Mechanical Maintenance Capacity.
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Miras-Moreno, Sergio, López-Belmonte, Óscar, García-Ramos, Amador, Arellano, Raúl, and Ruiz-Navarro, Jesús J.
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EXERCISE physiology ,CROSS-sectional method ,RESEARCH funding ,PHENOMENOLOGICAL biology ,KINEMATICS ,LYING down position ,NEUROPHYSIOLOGY ,NEUROMUSCULAR system ,DESCRIPTIVE statistics ,RESISTANCE training ,MUSCLE strength ,SWIMMING ,LIFTING & carrying (Human mechanics) ,BODY movement ,ATHLETIC ability - Abstract
Purpose: To explore the association of the load–velocity (L-V) relationship variables and ability to maintain maximal mechanical performance during the prone bench-pull exercise with sprint swimming performance and in-water forces. Methods: Eleven competitive adult male swimmers (50-m front crawl World Aquatics points: 488 [66], performance level 4) performed 1 experimental session. The L-V relationship variables (L
0 [ie, maximal theoretical load at 0 velocity]; v0 [ie, maximal theoretical velocity at 0 load], and Aline [ie, area under the L-V relationship]) and maximal mechanical maintenance capacity were assessed at the beginning of the session. Afterward, sprint swimming performance and in-water force production were tested through a 50-m front-crawl all-out trial and 15-s fully-tethered swimming, respectively. Results: Only v0 presented high positive associations with 50-m time and swimming kinematics (r >.532; P <.046). The L0 , v0 , and Aline showed very high positive associations with the in-water forces during tethered swimming (r >.523; P <.049). However, the ability to maintain maximal mechanical performance, assessed by the mean velocity decline during the prone bench pull, was only significantly correlated with stroke rate (r = −.647; P =.016) and stroke index (r =.614; P =.022). Conclusions: These findings indicate that maximal neuromuscular capacities, especially v0 , have a stronger correlation with swimming performance and in-water force production than the ability to maintain maximal mechanical performance in level 4 swimmers. [ABSTRACT FROM AUTHOR]- Published
- 2024
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