负载质量和负载分布对心率,感知运动和加速器测量的身体活动在跑步期间的影响
Sean Hagstrom1, Scott A Conger2, Jeremy A Steeves3
1Division of Health Sciences and Outdoor Studies, Maryville College, Maryville, TN, USA.
International journal of exercise science
|September 10, 2024
概括
运行与军事负载显著影响心率 (HR) 和感知炼 (RPE). 手持的较轻的负载引起了与较重的包装负载相似的生理反应,这表明战术运动员需要多样化的训练.
科学领域:
- 运动科学 运动科学 运动科学
- 职业生理学 职业生理学
- 军事适应 军事适应
背景情况:
- 战术运动员,包括军人和紧急人员,面临着固定载荷运输需求.
- 了解运行与作战负载的生理影响对于训练和准备至关重要.
研究的目的:
- 为了研究不同军事"战斗负载" (0-17.1公斤) 对心率 (HR),感知力度 (RPE) 和加速计衍生指标在跑步期间的影响.
- 为了比较生理反应,携带负载在手和穿着包装.
主要方法:
- 十一名平民在四个条件下以每小时8.05公里的速度跑:没有负载,步枪运输 (3.5公斤),包装运输 (13.6公斤) 和步枪/包装运输 (17.1公斤).
- 使用ActiGraph加速度计测量了心率,RPE,步数和每分钟活动计数 (CPM).
- 统计分析包括ANOVA和对对比与邦费罗尼校正.
主要成果:
- 在负载条件较高时,HR和RPE都显著增加 (p < 0.001).
- 携带步枪 (3.5公斤) 导致HR和RPE与包装运输 (13.6公斤) 相似.
- 步骤节奏保持不变,但随着负载的增加,CPM下降,表明运动效率降低.
结论:
- 在手上携带较轻的负载可能会与佩戴更重的包装施加类似的生理要求,这凸显了战术运动员需要多样化的训练方案的需要.
- 加速度计可以跟踪步骤节奏,但不足以量化外部载荷带来的生理应变.
相关概念视频
Exercise and Cardiovascular Response
746
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...
746
Exercise and Cardiac Output
943
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...
943
Pathophysiology of Cardiac Performance
611
Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
611
Factors Influencing Heart Rate
2.5K
The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
2.5K
Exercise Stress Test
178
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
178


