Institute for Cardiovascular Research and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sports University, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany.
Nutrients. 2023 Mar 22;15(6):1531. doi: 10.3390/nu15061531.
The age-related loss of muscle mass promotes many impairments. Training and protein supplementation are suggested to prevent muscle wasting, but recommendations for all populations are not based on scientific evidence. This study combines protein/carbohydrate supplementation (PCS) and training for seniors and postmenopausal women. Project A: 51 postmenopausal women (PMW, 57.3 ± 3.0 years old) underwent health-oriented training (12 weeks, moderate-strength training + moderate-endurance training). The intervention group (IG) additionally received 110 g sour milk cheese (SMC) and toast. Project B: 25 women and 6 men (65.9 ± 4.9 years old) performed intense sling training (12 weeks). The IG additionally received 110 g SMC, toast, and buttermilk. Strength was tested before and after in both studies. Project A: there was significant increase in strength, no additional effect of PCS, and a reduction in body fat in the controls. Project B: there was significant increase in strength, significant additional effects of PCS for trunk strength, and a significant reduction in body weight. Combining training and PCS may counteract strength loss. Combined endurance/resistance training is recommended to PMW for whom the benefits of PCS are restricted. Aged subjects may benefit from PCS when training intensely, but these benefits may be strongly individual.
随着年龄的增长,肌肉质量会逐渐减少,这会导致许多功能受损。人们建议通过训练和蛋白质补充来预防肌肉流失,但针对所有人群的建议并不是基于科学证据。本研究将针对老年人和绝经后女性进行蛋白质/碳水化合物补充(PCS)和训练。项目 A:51 名绝经后妇女(PMW,57.3 ± 3.0 岁)接受了健康导向的训练(12 周,中强度训练+中耐力训练)。干预组(IG)另外还接受了 110 克酸奶干酪(SMC)和烤面包。项目 B:25 名女性和 6 名男性(65.9 ± 4.9 岁)进行了剧烈的吊带训练(12 周)。IG 另外还接受了 110 克 SMC、烤面包和酪乳。在这两个项目中,力量在研究前后都进行了测试。项目 A:力量显著增加,PCS 没有额外的效果,对照组的体脂减少。项目 B:力量显著增加,PCS 对躯干力量有显著的额外效果,体重显著减轻。训练和 PCS 的结合可能会对抗力量的下降。结合耐力/阻力训练是推荐给 PMW 的,因为 PCS 的益处是有限的。年龄较大的受试者可能会从高强度训练时的 PCS 中受益,但这些益处可能因人而异。