Abstract:
We evaluated the effects of soy milk ingestion on changes in body composition, strength, power, and muscular-related biomarkers following 12 weeks of resistance training in older men. Thirty healthy older men (age = 65.63 ± 3.16 years; body mass = 62.63 ± 3.86 kg) were randomly assigned to one of two groups: soy milk + resistance training (SR) or placebo + resistance training (PR). Participants in the SR group received 240 ml of vanilla-flavoured non-dairy soy milk immediately after every training session and at the same time on non-training days. Differences in muscle mass, upper limb body strength (UBS), lower limb aerobic power (LAP), activin A, and GDF15 were significantly greater in the SR group vs. the PR group (P < 0.05). Both intervention groups experienced a significant (p < 0.05) reduction in body mass (PR = -3.9 kg; SR = -3.2 kg), body fat % (PR = -0.8%; SR = -1.2%), activin A (PR = -5.1 pg/ml; SR = -12.8 pg/ml), GDF15 (PR = -8.1 pg/ml; SR = -14.7 pg/ml), TGFβ1 (PR = -0.43 pg/ml; SR = -0.41 pg/ml), and increase in muscle mass (PR = 0.81 kg; SR = 2.5 kg), UBS (PR = 3.4 kg; SR = 6.7 kg), lower limb body strength (PR = 2.8 kg; SR = 5.2 kg), upper limb aerobic power (PR = 34.3 W; SR = 38.6 W), LAP (PR = 23.2 W; SR = 45.2 W), BDNF (PR = 8.3 ng/ml; SR = 12.7 ng/ml), and irisin (PR = 1.5 ng/ml; SR = 2.9 ng/ml) compared to baseline. The ingestion of soy milk during 12 weeks of resistance training augmented lean mass, strength, and power, and altered serum concentrations of skeletal muscle regulatory markers in older men.
摘要:
我们评估了豆浆摄入对身体成分变化的影响,力量,电源,和肌肉相关的生物标志物在老年男性12周的阻力训练后。30名健康的老年男性(年龄=65.63±3.16岁;体重=62.63±3.86kg)被随机分为两组:豆浆抗阻训练(SR)或安慰剂抗阻训练(PR)。SR组的参与者在每次培训后立即接受240毫升香草味的非乳制品豆浆,并在非培训日同时接受。肌肉质量的差异,上肢身体力量(UBS),下肢有氧力量(LAP),激活素A,和GDF15在SR组明显高于PR组(P<0.05)。两个干预组的体重均显着(p<0.05)降低(PR=-3.9kg;SR=-3.2kg),体脂%(PR=-0.8%;SR=-1.2%),激活素A(PR=-5.1pg/ml;SR=-12.8pg/ml),GDF15(PR=-8.1pg/ml;SR=-14.7pg/ml),TGFβ1(PR=-0.43pg/ml;SR=-0.41pg/ml),肌肉质量增加(PR=0.81kg;SR=2.5kg),瑞银(PR=3.4公斤;SR=6.7公斤),下肢身体力量(PR=2.8kg;SR=5.2kg),上肢有氧能力(PR=34.3W;SR=38.6W),LAP(PR=23.2W;SR=45.2W),BDNF(PR=8.3ng/ml;SR=12.7ng/ml),与基线相比,irisin(PR=1.5ng/ml;SR=2.9ng/ml)。在12周的阻力训练中摄入豆浆会增加瘦体重,力量,和权力,和改变老年男性骨骼肌调节标志物的血清浓度。