Prolonged vitamin C supplementation and recovery from demanding exercise
Prolonged vitamin C supplementation and recovery from demanding exercise
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DOI：
10.1123/ijsnem.11.4.466
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发表时间：
2001-12-01
影响因子：
2.5
通讯作者：
Powell, JR
中科院分区：
文献类型：
--
作者：
Thompson, D;Williams, C;Powell, JR
本研究的目的是调查两周的维生素C补充是否影响从不习惯的运动中恢复。16名男性受试者被分配到安慰剂组(P；n=8)或维生素C组(VC；n=8)。VC组每天两次摄入200毫克抗坏血酸，而P组每天摄入相同的胶囊，其中包含200毫克乳糖。服用补充剂14天后，受试者进行了一次长时间(90分钟)的间歇性穿梭跑试验。运动后的血清肌酸激酶活性和肌红蛋白浓度不受补充的影响。然而，补充维生素C对肌肉酸痛、肌肉功能和血浆丙二醛浓度有适度的有益影响。此外，虽然两组的血浆IL-6在运动后即刻升高，但VC组在运动后2小时低于P组(P<；0.05)。这些结果表明，长期补充维生素C对从不习惯的运动中恢复有一些适度的有益效果。
The aim of the present study was to investigate whether 2 weeks of vitamin C supplementation affects recovery from an unaccustomed bout of exercise. Sixteen male subjects were allocated to either a placebo (P; n = 8) or vitamin C group (VC; n = 8). The VC group consumed 200 mg of ascorbic acid twice a day, whereas the P group consumed identical capsules containing 200 mg of lactose. Subjects performed a prolonged (90-min) intermittent shuttle-running test 14 days after supplementation began. Post-exercise serum creatine kinase activities and myoglobin concentrations were unaffected by supplementation. However, vitamin C supplementation had modest beneficial effects on muscle soreness, muscle function, and plasma concentrations of malondialdehyde. Furthermore, although plasma interleukin-6 increased immediately after exercise in both groups, values in the VC group were lower than in the P group 2 hours after exercise (p < .05). These results suggest that prolonged vitamin C supplementation has some modest beneficial effects on recovery from unaccustomed exercise.