Larsen Penelope S, Donges Cheyne E, Guelfi Kym J, Smith Greg C, Adams David R, Duffield Rob
1 Charles Sturt University.
2 University of Western Australia.
Int J Sport Nutr Exerc Metab. 2017 Oct;27(5):389-398. doi: 10.1123/ijsnem.2017-0144. Epub 2017 Jun 28.
Aerobic exercise (AE) and strength exercise (SE) are reported to induce discrete and specific appetite-related responses; however, the effect of combining AE and SE (i.e., combined exercise; CE) remains relatively unknown. Twelve inactive overweight men (age: 48 ± 5 y; BMI: 29.9 ± 1.9 kg∙m) completed four conditions in a random order: 1) nonexercise control (CON) (50 min seated rest); 2) AE (50 min cycling; 75% VO); 3) SE (10 × 8 leg extensions; 75% 1RM); and 4) CE (50% SE + 50% AE). Perceived appetite, and appetiterelated peptides and metabolites were assessed before and up to 2 h postcondition (0P, 30P, 60P, 90P, 120P). Perceived appetite did not differ between trials (p < .05). Acylated ghrelin was lower at 0P in AE compared with CON (p = .039), while pancreatic polypeptide (PP) was elevated following AE compared with CON and CE. Glucose-dependent insulinotropic peptide (GIP) was greater following all exercise conditions compared with CON, as was glucagon, although concentrations were generally highest in AE (p < .05). Glucose was acutely increased with SE and AE (p < .05), while insulin and C-peptide were higher after SE compared with all other conditions (p < .05). In inactive, middle-aged men AE, SE and CE each have their own distinct effects on circulating appetite-related peptides and metabolites. Despite these differential exercise-induced hormone responses, exercise mode appears to have little effect on perceived appetite compared with a resting control in this population.
据报道，有氧运动（AE）和力量训练（SE）会引发不同且特定的与食欲相关的反应；然而，有氧运动和力量训练相结合（即联合运动；CE）的效果仍相对未知。12名不运动的超重男性（年龄：48±5岁；体重指数：29.9±1.9kg·m²）按随机顺序完成了四种运动条件：1）非运动对照（CON）（静坐休息50分钟）；2）有氧运动（50分钟骑自行车；75%最大摄氧量）；3）力量训练（10组，每组8次腿部伸展；75%的1次重复最大重量）；4）联合运动（50%力量训练+50%有氧运动）。在运动前及运动后长达2小时（0分钟、30分钟、60分钟、90分钟、120分钟）评估主观食欲以及与食欲相关的肽和代谢物。各试验之间主观食欲无差异（p<0.05）。与CON相比，有氧运动组在0分钟时酰化胃泌素较低（p=0.039），而与CON和联合运动组相比，有氧运动后胰多肽（PP）升高。与CON相比，所有运动条件下葡萄糖依赖性促胰岛素多肽（GIP）均升高，胰高血糖素也是如此，尽管其浓度在有氧运动组中通常最高（p<0.05）。力量训练和有氧运动后血糖急性升高（p<0.05），而与所有其他条件相比，力量训练后胰岛素和C肽更高（p<0.05）。在不运动的中年男性中，有氧运动、力量训练和联合运动对循环中与食欲相关的肽和代谢物各有不同影响。尽管运动诱导的激素反应存在差异，但与该人群中的静息对照相比，运动方式对主观食欲似乎影响不大。
