Department of Kinesiology, Center for Sport Performance, California State University, Fullerton, California.
J Strength Cond Res. 2020 Jun;34(6):1643-1648. doi: 10.1519/JSC.0000000000002697.
Salatto, RW, Arevalo, JA, Brown, LE, Wiersma, LD, and Coburn, JW. Caffeine's effects on an upper-body resistance exercise workout. J Strength Cond Res 34(6): 1643-1648, 2020-The purpose of this study was to examine the effects of caffeine on an upper-body resistance exercise workout. Fifteen men (mean ± SD: age, 23.1 ± 1.9 years; body mass, 89.1 ± 13.9 kg; height, 175 ± 6.1 cm) volunteered to come to the laboratory 3 times. During visit 1, 1-repetition maximum (RM) values were determined for the barbell bench press, incline barbell bench press, and dumbbell bench press exercises. For visit 2, subjects consumed either 800-mg caffeine or a placebo. Subjects then completed 3 sets to failure of each exercise using 80% of their 1RM. Visit 3 was the same as visit 2; however, participants consumed the opposite treatment as visit 2. Various perceptual measures were recorded before, during, and after the workouts. The results indicated that participants completed significantly more repetitions per set for the barbell bench press (4.80 ± 2.66) and incline barbell bench press (4.91 ± 2.29) in the caffeine condition compared with the placebo condition (4.42 ± 2.56 and 4.36 ± 2.11, respectively). Higher arousal scores were found in the caffeine condition. For vigor, participants reported higher scores with caffeine before warming up (caffeine = 10.20 ± 4.11, placebo = 6.20 ± 3.23) and mid workout (caffeine = 13.53 ± 2.29, placebo = 11.13 ± 2.79). These results suggest that caffeine has an ergogenic effect on strength workout performance due, at least in part, to positive effects on workout perception. Athletes and recreational lifters may want to consider the ingestion of caffeine before a resistance exercise workout.
萨拉托，RW，阿雷瓦洛，JA，布朗，LE，维泽马，LD，和科本，JW。咖啡因对一项上半身阻力运动锻炼的影响。J 力量与调节研究 34（6）：1643-1648，2020-本研究的目的是研究咖啡因对上半身阻力运动锻炼的影响。15 名男性（平均 ± SD：年龄，23.1 ± 1.9 岁；体重，89.1 ± 13.9 公斤；身高，175 ± 6.1 厘米）自愿 3 次到实验室报到。在第 1 次访问期间，确定了杠铃卧推、上斜杠铃卧推和哑铃卧推练习的 1 次重复最大（1RM）值。对于第 2 次访问，受试者服用 800 毫克咖啡因或安慰剂。然后，受试者使用 80%的 1RM 完成每个练习的 3 组至力竭。第 3 次访问与第 2 次访问相同；然而，参与者服用了与第 2 次访问相反的治疗方法。在锻炼前后和期间记录了各种感知测量值。结果表明，与安慰剂组（4.42 ± 2.56 和 4.36 ± 2.11）相比，咖啡因组的杠铃卧推（4.80 ± 2.66）和上斜杠铃卧推（4.91 ± 2.29）的每组重复次数明显更多。在咖啡因条件下，唤醒评分更高。对于活力，参与者在热身前（咖啡因=10.20 ± 4.11，安慰剂=6.20 ± 3.23）和锻炼中期（咖啡因=13.53 ± 2.29，安慰剂=11.13 ± 2.79）报告的分数更高。这些结果表明，咖啡因对力量锻炼表现具有促进作用，这至少部分归因于对锻炼感知的积极影响。运动员和业余举重者可能希望在进行抗阻运动锻炼前考虑摄入咖啡因。
