Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan 33301, Taiwan.
Division of Physical Medicine and Rehabilitation, Lo-Hsu Medical Foundation, Inc., Lotung Poh-Ai Hospital, Yilan 26546, Taiwan.
Nutrients. 2021 Dec 18;13(12):4547. doi: 10.3390/nu13124547.
It is well known that supplementation with high protein after exercise can effectively promote muscle synthesis and repair, while green tea is rich in catechins that have antioxidant effects. We aimed to explore the effects of green tea combined with isolated soy protein on increase muscle mass in resistance-trained mice. A total of 32 male ICR mice (8-weeks old) were divided into four groups ( = 8/group), sedentary control group (SC), isolated soy protein with green tea group (ISPG), resistance training group (RT), isolated soy protein and green tea combine with resistance training group (ISPG + RT). All mice received control or ISPG by oral gavage for four consecutive weeks. Forelimb grip and exhaustive swimming time were used for exercise performance evaluation. In biochemical profile, we analyzed lactate, ammonia, blood urea nitrogen (BUN), and glucose and muscle damage index creatine kinase (CK) after exercise as biochemical parameters of exercise fatigue. The grip strength, muscular endurance, and exhaustive swimming time of the ISPG + RT group were significantly increased than other groups ( < 0.05), and also significantly decreased in serum lactate and ammonia levels ( < 0.05, respectively). The ISP + RT group was not only increased in quadriceps weight, ( < 0.05) but also decreased EFP ( < 0.05). We recommend using a 4-week supplementation with ISPG, combined with RT, to increase muscle mass, exercise performance, glycogen storage, and reduce fatigue biochemical parameters after exercise. The benefits of long-term supplementation or application to human supplementation can be further explored in the future.
众所周知，运动后补充高蛋白可以有效促进肌肉合成和修复，而绿茶富含具有抗氧化作用的儿茶素。我们旨在探讨绿茶与分离大豆蛋白联合使用对增强抗阻训练小鼠肌肉质量的影响。将 32 只雄性 ICR 小鼠（8 周龄）分为 4 组（每组 8 只），即安静对照组（SC）、绿茶与分离大豆蛋白组（ISPG）、抗阻训练组（RT）、绿茶与分离大豆蛋白联合抗阻训练组（ISPG + RT）。所有小鼠连续 4 周通过口服灌胃接受对照或 ISPG。采用前肢握力和力竭游泳时间评估运动表现。在生化特征方面，我们分析了运动后血乳酸、血氨、血尿素氮（BUN）和血糖以及肌肉损伤指标肌酸激酶（CK），作为运动疲劳的生化参数。ISPG + RT 组的握力、肌肉耐力和力竭游泳时间均显著高于其他组（<0.05），血清乳酸和血氨水平也显著降低（分别为<0.05）。ISPG + RT 组不仅增加了股四头肌重量（<0.05），还降低了 EFP（<0.05）。我们建议使用 4 周 ISPG 补充剂，结合 RT，以增加肌肉质量、运动表现、糖原储存，并降低运动后疲劳的生化参数。未来可以进一步探讨长期补充或应用于人体补充的益处。
