饮用甜菜汁提高了滑雪运动的表现,并减少了高山滑雪运动员在低氧条件下的肌肉疼痛
Alireza Ahmadpour1, Mohammad Fashi1, Mohammad Hemmatinafar2
1Department of Biological Sciences in Sports, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran.
Current developments in nutrition
|September 3, 2024
概括
甜菜汁 (BRJ) 补充剂提高了阿尔卑斯山滑雪运动员在墙壁坐和箱子跳等测试中的表现,同时减少了感知到的炼和肌肉疼痛. 这表明BRJ可能有利于高海拔运动员,低氧条件.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 营养补充剂 营养补充剂
背景情况:
- 甜菜汁 (BRJ) 补充剂被认为可以提高体育表现,特别是在低氧条件下.
- 它还在改善运动员的康复过程中发挥作用.
研究的目的:
- 调查BRJ补充剂对斯拉洛姆 (SL) 跑步表现的急性影响.
- 评估BRJ对阿尔卑斯山滑雪运动员中等至高海拔地区肌肉疼痛 (MS) 的影响.
主要方法:
- 一项随机,交叉,安慰剂控制,双盲研究,涉及十名男性阿尔卑斯山滑雪运动员.
- 参与者接受了BRJ (8.9 mmol/L酸盐) 或安慰剂 (PLA),有7天的洗期.
- 使用90s盒跳 (BJ90),敏捷性六角障碍跳 (Hex Jump) 和墙坐测试,以及SL跑步时间和感知力 (RPE) 的测试来评估性能,MS在运动后12,24和48小时记录.
主要成果:
- 与安慰剂相比,BRJ显著改善了墙上坐和BJ90的表现 (P <0.05).
- 在BRJ补充剂 (P <0.05) 服用时,观察到RPE,Hex Jump性能和MS显著降低.
- 虽然SL运行时间比BRJ快1.74%,但这种差异在统计学上并不显著 (P > 0.05).
结论:
- 补充BRJ显示了增强阿尔卑斯山滑雪运动员体育表现的特定方面的潜力.
- 它有效地减少肌肉疼痛和在低氧环境中感知到的劳动力.
- 进一步的研究可能会澄清BRJ对海拔高度斯拉洛姆总体表现的影响.
更多相关视频
08:21Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol
Published on: June 8, 2017
7.7K
09:04Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
Published on: February 20, 2018
12.5K
相关概念视频
Muscle Recovery and Fatigue
2.0K
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
2.0K
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
Oxygen Transport in the Blood
2.6K
Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
2.6K
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
