Food and Nutrition Group, Sheffield Hallam University, Sheffield S1 1WB, UK.
Academy of Sport and Physical Activity, Sheffield Hallam University, Sheffield S10 2BP, UK.
Nutrients. 2019 Jul 14;11(7):1593. doi: 10.3390/nu11071593.
Tart cherry juice (TC) and pomegranate juice (POM) have been demonstrated to reduce symptoms of exercise-induced muscle damage (EIMD), but their effectiveness has not been compared. This randomized, double-blind, parallel study compared the effects of TC and POM on markers of EIMD. Thirty-six non-resistance trained men (age 24.0 (Interquartile Range (IQR) 22.0, 33.0) years, body mass index (BMI) 25.6 ± 4.0 kg·m) were randomly allocated to consume 2 × 250 mL of: TC, POM, or an energy-matched fruit-flavored placebo drink twice daily for nine days. On day 5, participants undertook eccentric exercise of the elbow flexors of their non-dominant arm. Pre-exercise, immediately post-exercise, and at 24 h, 48 h, 72 h and 96 h post-exercise, maximal isometric voluntary contraction (MIVC), delayed onset muscle soreness (DOMS), creatine kinase (CK), and range of motion (ROM) were measured. The exercise protocol induced significant decreases in MIVC ( < 0.001; max decrease of 26.8%, 24 h post-exercise) and ROM ( = 0.001; max decrease of 6.8%, 72 h post-exercise) and significant increases in CK ( = 0.03; max increase 1385 U·L, 96 h post-exercise) and DOMS ( < 0.001; max increase of 26.9 mm, 48 h post-exercise). However, there were no statistically significant differences between treatment groups (main effect of group > 0.05 or group x time interaction > 0.05). These data suggest that in non-resistance trained men, neither TC nor POM enhance recovery from high-force eccentric exercise of the elbow flexors.
酸樱桃汁(TC)和石榴汁(POM)已被证明可减轻运动引起的肌肉损伤(EIMD)的症状,但尚未比较其有效性。这项随机、双盲、平行研究比较了 TC 和 POM 对 EIMD 标志物的影响。36 名非抗阻训练男性(年龄 24.0(四分位距(IQR)22.0,33.0)岁,体重指数(BMI)25.6±4.0kg·m)随机分为每天两次饮用 2×250ml:TC、POM 或能量匹配的水果味安慰剂饮料。在第 5 天,参与者进行了非优势侧手臂肘屈肌的离心运动。在运动前、运动后即刻、运动后 24 小时、48 小时、72 小时和 96 小时,测量最大等长随意收缩(MIVC)、延迟性肌肉酸痛(DOMS)、肌酸激酶(CK)和关节活动度(ROM)。运动方案导致 MIVC(<0.001;运动后 24 小时最大下降 26.8%)和 ROM(=0.001;运动后 72 小时最大下降 6.8%)显著下降,CK(=0.03;运动后 96 小时最大升高 1385U·L)和 DOMS(<0.001;运动后 48 小时最大升高 26.9mm)显著升高。然而,各组之间无统计学差异(组间主要效应>0.05 或组间时间交互作用>0.05)。这些数据表明,在非抗阻训练的男性中,TC 和 POM 均不能促进肱二头肌的高强度离心运动后的恢复。