Effects of resistance exercise on lipolysis during subsequent submaximal exercise
Effects of resistance exercise on lipolysis during subsequent submaximal exercise
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DOI：
10.1249/01.mss.0000246992.33482.cb
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发表时间：
2007-02-01
期刊：
影响因子：
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通讯作者：
Takamatsu, Kaoru
中科院分区：
文献类型：
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作者：
Goto, Kazushige;Ishii, Naokata;Takamatsu, Kaoru
目的：本研究探讨了先前的抗阻运动对随后次最大运动期间脂肪代谢的影响，以及运动之间不同的恢复期。方法：10 名男性受试者进行了三种类型的运动方案：1) 仅次最大耐力运动 (E)，2) 次最大耐力运动+先前抗阻运动和 20 分钟休息 (RE20)，以及 3) 次最大耐力运动+先前抗阻运动和 120 分钟休息 (RE 120)。抗阻练习由六项练习组成，每项练习三到四组，最多重复 10 次。受试者以最大摄氧量的 50% 进行自行车测功机锻炼 60 分钟。结果：先前的抗阻运动导致血乳酸、血浆去甲肾上腺素、血清生长激素 (GH)、胰岛素和甘油浓度增加 (P < 0.01)。在次最大运动前，RE 120 中的血清游离脂肪酸 (FFA) 浓度高于 RE20 和 E 试验中的 (P < 0.01)，尽管 RE20 中血浆去甲肾上腺素、血清 GH、胰岛素和甘油的浓度高于 RE 120 和 E 试验中的 (P < 0.05)。 RE120 和 RE20 试验中 60 分钟次最大运动期间的 FFA 和甘油浓度高于 E 试验（P < 0.05）。乙酰乙酸盐和 3-羟基丁酸盐反应没有观察到显着差异。在 RE20 试验中，整个 60 分钟次最大运动的脂肪氧化（平均值）高于 E 试验（P < 0.05），但 RE120 和 E 试验之间没有发现显着差异。结论：先前的抗阻运动增强了次最大运动期间的脂肪可用性。然而，仅在抗阻运动和次最大运动之间休息时间较短的试验（RE20 试验）中观察到脂肪氧化的增强。
Purpose: This study examined effects of prior resistance exercise on fat metabolism during subsequent submaximal exercise with different recovery periods between exercise bouts. Methods: Ten male subjects performed three types of exercise regimens: 1) submaximal endurance exercise only (E), 2) submaximal endurance exercise with prior resistance exercise and 20 min of rest (RE20), and 3) submaximal endurance exercise with prior resistance exercise and 120 min of rest (RE 120). Resistance exercise consisted of six exercises, each with three to four sets at 10-repetition maximum. Subjects performed cycle ergometer exercise at 50% of the maximal oxygen uptake for 60 min. Results: Prior resistance exercise caused increases in blood lactate, plasma norepinephrine, serum growth hormone (GH), insulin, and glycerol concentrations (P < 0.01). Before the submaximal exercise, serum free fatty acid (FFA) concentration was higher in the RE 120 than in the RE20 and E trials (P < 0.01), although concentrations of plasma norepinephrine, serum GH, insulin, and glycerol were higher in the RE20 than in the RE 120 and E trials (P < 0.05). Concentrations of FFA and glycerol during the 60-min submaximal exercise were higher in the RE120 and RE20 trials than in the E trial (P < 0.05). No significant difference was observed in the acetoacetate and 3-hydroxybutyrate responses. In the RE20 trial, fat oxidation throughout the 60-min submaximal exercise (mean value) was greater than in the E trial (P < 0.05), but no significant difference was found between the RE120 and E trials. Conclusion: Fat availability during the submaximal exercise was enhanced by prior resistance exercise. However, augmentation of fat oxidation was observed only in the trial with shorter rest between resistance exercise and submaximal exercise bouts (RE20 trial).