Influence of photobiomodulation on energy contribution in normoxia and hypoxia conditions in amateur runners: a single-blinded and randomized crossover pilot study.

IF 2.1 4区医学 Q3 ENGINEERING, BIOMEDICAL

Lasers in Medical Science Pub Date : 2024-11-15 DOI:10.1007/s10103-024-04234-5

Lais de Faria Secarolli, Carlos Dellavechia de Carvalho, Carlos Eduardo Girasol, Rinaldo Roberto de Jesus Girro, Marcelo Papoti

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引用次数: 0

Abstract

This study aimed to investigate the influence of photobiomodulation therapy (PBMT) in hypoxia (HYP) and normoxia (NOR) on time to exhaustion and the energetic contribution of treadmill running in amateur athletes. Eleven male participants, aged between 18 and 29 years, were submitted to an incremental test to determine the iV̇O₂max, and subsequently on separated days, to the PBMT application (irradiation = 720 s; wavelength = 850 nm), followed by four efforts to exhaustion, in treadmill running, under different conditions [NOR + placebo (PLA); NOR + PBMT; HYP + PLA; HYP + PBMT], in random order, to access energy contribution and maximal accumulated oxygen deficit alternative (MAOD_ALT). Time to exhaustion and absolute aerobic contribution were lower in HYP than NOR, for both PLA and PBMT conditions (p < 0.05). In the percentage energy contribution of each metabolism during exhaustion effort, aerobic participation was lower, while MAOD_ALT was higher in HYP than NOR, only in the PLA situation; alactic anaerobic participation was higher in HYP than NOR in the PBMT application situation (p = 0.002). The PBMT does not promote additional benefits over time to exhaustion in NOR and HYP conditions, however PBMT during exhaustive efforts in HYP results in an increase in anaerobiosis.

查看原文本刊更多论文

光生物调节对业余跑步者在常氧和缺氧条件下能量贡献的影响：一项单盲随机交叉试验研究。

本研究旨在探讨光生物调节疗法（PBMT）在缺氧（HYP）和常氧（NOR）条件下对业余运动员耗竭时间和跑步机跑步能量贡献的影响。11名年龄在18至29岁之间的男性参赛者在不同条件下[NOR+安慰剂（PLA）；NOR+PBMT；HYP+PLA；HYP+PBMT]，以随机顺序接受了一次增量测试，以确定iV̇O2max，随后在不同的日子接受了PBMT应用（照射时间=720 s；波长=850 nm），随后在跑步机上进行了四次努力到力竭的跑步，以获得能量贡献和最大累积缺氧替代（MAODALT）。在 PLA 和 PBMT 条件下，HYP 的耗竭时间和绝对有氧贡献均低于 NOR（仅在 PLA 条件下，HYP 的 ALT 高于 NOR；在 PBMT 应用条件下，HYP 的厌氧参与高于 NOR（p = 0.002）。在 NOR 和 HYP 条件下，随着时间的推移，PBMT 并未给力竭状态带来额外的益处，但在 HYP 的力竭状态下，PBMT 会导致无氧状态的增加。

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

Lasers in Medical Science 医学-工程：生物医学

CiteScore

4.50

自引率

4.80%

发文量

192

审稿时长

3-8 weeks

期刊介绍： Lasers in Medical Science (LIMS) has established itself as the leading international journal in the rapidly expanding field of medical and dental applications of lasers and light. It provides a forum for the publication of papers on the technical, experimental, and clinical aspects of the use of medical lasers, including lasers in surgery, endoscopy, angioplasty, hyperthermia of tumors, and photodynamic therapy. In addition to medical laser applications, LIMS presents high-quality manuscripts on a wide range of dental topics, including aesthetic dentistry, endodontics, orthodontics, and prosthodontics. The journal publishes articles on the medical and dental applications of novel laser technologies, light delivery systems, sensors to monitor laser effects, basic laser-tissue interactions, and the modeling of laser-tissue interactions. Beyond laser applications, LIMS features articles relating to the use of non-laser light-tissue interactions.