在长期军事演习期间,对最大氧气吸收对认知功能和表现的影响的观察性研究
Torbjörn Helge1, M Windahl2,3, F Björkman4
1Department of Nutrition and Biomechanics, Swedish School of Sport and Health Sciences GIH, Stockholm, Sweden.
BMJ military health
|September 4, 2024
概括
通过最大氧气摄入量 (VO2max) 测量的高心肺呼吸能力,在苛刻的练习中提高了军事表现. 提高有氧能力有助于减少压力反应,保持认知功能和士兵在充满挑战的环境中的有效性.
科学领域:
- 运动生理学 运动生理学
- 军事科学 军事科学
- 认知神经科学 认知神经科学
背景情况:
- 军事行动对认知有很大的要求,并且经常涉及压力事件.
- 了解身体健康,压力,认知和表现之间的相互作用对于军事准备至关重要.
研究的目的:
- 研究心肺呼吸能力 (VO2max),应激反应 (HRV),认知功能 (DF测试) 和军事表现 (P-ind,P-lead) 之间的关系.
- 检查VO2max如何影响军事表现,可能由压力反应和认知功能介导.
主要方法:
- 这项研究涉及66名陆军学员,他们接受了为期4.5天的冬季军事训练.
- 测量包括最大氧气摄入量 (VO2max),心率变化 (HRV) 和运动前后的认知测试 (DF测试).
- 军事绩效被评估为个人 (P-ind) 和团队领导 (P-lead);使用相关性和调解分析.
主要成果:
- 运动后心率变化 (HRV) 与个人 (P-ind) 和队长 (P-lead) 的军事表现有显著的相关性.
- 绝对最大的氧气摄入量 (VO2max) 与个人军事表现 (P-ind) 有正相关,HRV 调解了这一效应.
- 认知测试得分 (DF测试) 与运动后HRV呈负相关性,表明认知功能与应激反应之间存在联系.
结论:
- 较高的绝对VO2max是军事表现的预测指标,可能是通过减轻长时间炼期间的生理应激反应.
- 心血管健康在维持在苛刻条件下的军事表现方面发挥着重要作用.
- 需要进一步的研究来确定最佳军事性能的特定VO2max值.
更多相关视频
07:26Conducting Maximal and Submaximal Endurance Exercise Testing to Measure Physiological and Biological Responses to Acute Exercise in Humans
Published on: October 17, 2018
20.4K
09:24A Rapidly Incremented Tethered-Swimming Maximal Protocol for Cardiorespiratory Assessment of Swimmers
Published on: January 28, 2020
8.8K
相关概念视频
Exercise and Cardiac Output
946
Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be...
Sustained exercise increases the muscles' oxygen demand, which can be...
946
Exercise and Cardiovascular Response
750
Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
750
Respiratory Capacities
772
Respiratory capacities are crucial indicators of lung function, representing the maximum amount of air an individual's respiratory system can handle during various breathing phases.
One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
The Functional Residual Capacity (FRC) represents the air in the...
One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
The Functional Residual Capacity (FRC) represents the air in the...
772
Exercise and Muscle Performance
1.4K
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
1.4K
Cognitive Development During Adulthood
72
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
72
Cognitive Dissonance
32.5K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
32.5K
