耐热服训练可保持精英自行车运动员在高海拔训练营后增加的血红蛋白质量。

IF 4.1 2区 医学 Q1 SPORT SCIENCES
Bent R Rønnestad, Ingvill Odden, Tomas Urianstad, Joar Hansen, Knut S Mølmen, Daniele A Cardinale
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引用次数: 0

摘要

目的:高海拔训练是一种常用策略,旨在增加运动员的血红蛋白质量(Hbmass)。然而,如果在高海拔训练营期间增加了血红蛋白质量,回到海平面后似乎会迅速下降。本研究旨在考察在为期 3 周的高海拔训练营结束后的 3.5 周内,每周进行三次热量训练对维持自行车精英运动员血红蛋白质量的效果:18 名男性自行车运动员(最大耗氧量:76 ± 5 mL-min-1-kg-1)在海拔约 2100 米处参加了为期 3 周的高海拔训练营。训练营结束后,参加者被分为一组,每周进行三次热身训练,热身训练从平时的训练中减去(HEAT),而另一组则继续平时的训练(CON)。在干预过程中记录了训练特点,并在训练营之前以及训练营结束两天和 3.5 周后记录了血液测量结果:结果:为期 3 周的高海拔训练营使总血红蛋白量总体增加了 4.1%。之后,HEAT 保持了 Hbmass(0.2%,p = 0.738),而 CON 组则显著降低(-3.3%,p < 0.001)(ΔHEAT vs. ΔCON,p < 0.001)。此外,HEAT 使血浆容量(PV)增加了 11.6%(p = 0.007),血液容量(BV)增加了 5.8%(p = 0.007),而 CON 仅使 PV 增加了 5.5%(p = 0.041)。在维持期,各组之间的运动强度和训练负荷没有差异:本研究表明,将每周三次的热量训练纳入常规训练中,可保持高海拔训练营后精英自行车运动员适度增加的血红蛋白量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Heat Suit Training Preserves the Increased Hemoglobin Mass after Altitude Camp in Elite Cyclists.

Purpose: Altitude training is a common strategy used with the intent to increase hemoglobin mass (Hb mass ) in athletes. However, if the Hb mass is increased during altitude camps, it seems to decline rapidly upon returning to sea level. This study aimed to examine the efficacy of three weekly heat training sessions over a 3.5-wk period after a 3-wk altitude camp on the maintenance of Hb mass in elite cyclists.

Methods: Eighteen male cyclists (maximal oxygen consumption: 76 ± 5 mL·min -1 ·kg -1 ) underwent a 3-wk altitude training camp at ~2100 m above sea level. After the camp, participants were divided into one group performing three weekly heat sessions that were subtracted from their usual training (HEAT) while the other continuing usual training (CON). Training characteristics were recorded during the intervention, whereas hematological measurements were recorded before the camp as well as 2 d and 3.5 wk after the altitude camp.

Results: The 3-wk altitude camp led to an overall increase in total Hb mass of 4.1%. Afterward, HEAT maintained Hb mass (0.2%, P = 0.738), whereas CON group experienced a significant reduction (-3.3%, P < 0.001) (ΔHEAT vs ΔCON, P < 0.001). Moreover, HEAT increased plasma volume (PV) by 11.6% ( P = 0.007) and blood volume (BV) by 5.8% ( P = 0.007), whereas CON only showed an increase in PV (5.5%, P = 0.041). Exercise intensity and training load were not different between groups during the maintenance period.

Conclusions: This study suggests that incorporating three weekly heat training sessions into the usual training routine preserves a moderately increased Hb mass in elite cyclists after an altitude camp.

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来源期刊
CiteScore
7.70
自引率
4.90%
发文量
2568
审稿时长
1 months
期刊介绍: Medicine & Science in Sports & Exercise® features original investigations, clinical studies, and comprehensive reviews on current topics in sports medicine and exercise science. With this leading multidisciplinary journal, exercise physiologists, physiatrists, physical therapists, team physicians, and athletic trainers get a vital exchange of information from basic and applied science, medicine, education, and allied health fields.
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