Aging leads to a number of structural and physiological deficits such as loss of muscle mass and strength. Strength training at ~ 70% of 1 repetition max (RM) is recommended to prevent age-related loss of muscle mass and strength. However, most older adults may not be able to perform 70% of 1RM or higher intensity. An alternative exercise training program combining low intensity resistance exercise with blood flow restriction (BFR) can result in similar acute and chronic benefits to skeletal muscles in older adults. The potential mechanisms involved are discussed, and include reactive hyperaemia, metabolic stress, and hypoxia. Key issues and safety with the use of BFR in older adults, especially those with chronic conditions are also discussed. Although there has been no reported evidence to suggest that BFR elevates the risk of clinical complications any more than high intensity exercise, it is recommended for individuals to be medically cleared of any cardiovascular risks, prior to engaging in BFR exercise.

中文翻译：

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血流限制 (BFR) 与阻力运动对老年人肌肉骨骼健康的影响：叙述性回顾

衰老会导致许多结构和生理缺陷，例如肌肉质量和力量的丧失。建议进行约 70% 的最大 1 次重复 (RM) 的力量训练，以防止与年龄相关的肌肉质量和力量损失。然而，大多数老年人可能无法完成 1RM 或更高强度的 70%。将低强度阻力运动与血流限制 (BFR) 相结合的替代运动训练计划可以对老年人的骨骼肌产生类似的急性和慢性益处。讨论了所涉及的潜在机制，包括反应性充血、代谢应激和缺氧。还讨论了在老年人，尤其是慢性病患者中使用 BFR 的关键问题和安全性。