Apnea or normal breathing during repeated high-intensity swimming enhance sprint efficiency and which metabolic disorder?

IF 1.2 4区医学 Q3 SPORT SCIENCES

Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-01 Epub Date: 2024-07-02 DOI:10.23736/S0022-4707.24.15993-2

Pinelopi Liapaki, Helen Soultanakis, Ioannis Kalomenidis, Stamatis Mourtakos, Spyros Zakynthinos

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引用次数: 0

Abstract

Background: The aim of this study was to investigate the effect of normal breath and apnea swimming on acid-base balance, physiological responses and performance during high-intensity interval training in swimming.

Methods: Sixteen swimmers completed 6×50 m intervals of freestyle swimming with normal breath and apnea at maximum intensity, with 1 minute rest. Capillary blood gases (pH, PCO2, PO2, HCO3, Hct, Hb) were collected at four (4) measurement time points: 1) at rest once; 2) at rest just after the 3^rd repetition; 3) at finish; and 4) at 10 min of recovery. Heart rate (HR) during swimming, lactate acid (La) concentration and swimming time (t50) were measured.

Results: Our study showed uncompensated metabolic acidosis due to increased lactic acidosis in both breathing conditions, more pronounced in apnea, and faster swimming times in apnea without different heart rate responses.

Conclusions: Apnea during repetitive high intensity long distance interval 50 m freestyle swimming causes uncompensated metabolic acidosis but improves sprint performance.

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在反复高强度游泳过程中，呼吸暂停或正常呼吸会提高冲刺效率，这与哪种代谢紊乱有关？

研究背景本研究旨在探讨正常呼吸和呼吸暂停游泳对游泳高强度间歇训练中酸碱平衡、生理反应和成绩的影响：16 名游泳运动员在最大强度下用正常呼吸和呼吸暂停完成 6×50 米自由泳间歇，休息 1 分钟。在四个测量时间点采集毛细血管血气（pH、PCO2、PO2、HCO3、Hct、Hb）：1）休息时一次；2）刚做完第 3 次重复后休息时；3）结束时；4）恢复 10 分钟时。测量了游泳过程中的心率（HR）、乳酸（La）浓度和游泳时间（t50）：结果：我们的研究显示，在两种呼吸条件下，乳酸酸中毒都会增加，导致无补偿的代谢性酸中毒，呼吸暂停时更明显，而呼吸暂停时游泳时间更快，但心率反应却不一样：结论：在重复性高强度长距离间歇 50 米自由泳中，呼吸暂停会导致无补偿的代谢性酸中毒，但会提高短跑成绩。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Sports Medicine and Physical Fitness 医学-运动科学

CiteScore

2.90

自引率

5.90%

发文量

393

审稿时长

6-12 weeks

期刊介绍： The Journal of Sports Medicine and Physical Fitness publishes scientific papers relating to the area of the applied physiology, preventive medicine, sports medicine and traumatology, sports psychology. Manuscripts may be submitted in the form of editorials, original articles, review articles, case reports, special articles, letters to the Editor and guidelines.