Department of Foods and Nutrition, Purdue University, 700 West State Street, West Lafayette, IN 47907, USA.
Br J Nutr. 2011 Oct;106(7):1107-16. doi: 10.1017/S0007114511001310. Epub 2011 Apr 15.
Limited research has suggested that the food form of nutritional supplements (FFNS) and resistance training (RT) influence ingestive behaviour and energy balance in older adults. The effects of the FFNS and RT on acute appetitive, endocrine and metabolic responses are not adequately documented. The present study assessed the effects of the FFNS and RT on postprandial appetite sensations (hunger and fullness), endocrine responses (plasma insulin, cholecystokinin, ghrelin and glucagon-like peptide-1 (GLP-1)), metabolism (glucose, energy expenditure and RER) and food intake (satiation) in older adults. On separate days, eighteen sedentary (Sed) and sixteen RT healthy adults (age 62-84 years) consumed 12·5 % of their energy need as an isoenergetic- and macronutrient-matched solid or beverage. Postprandial responses were assessed over 4 h. No RT × FFNS interactions were observed for any parameter. Fasting cholecystokinin was higher in the RT v. Sed group (P < 0·05). RT did not influence fullness, but fullness was higher following the solid v. beverage intake (P < 0·01). Neither RT nor FFNS influenced hunger. Glucose and insulin were higher after the solid v. beverage intake (P < 0·01). Ghrelin, GLP-1 and energy expenditure were not different between the RT and FFNS groups. Postprandial cholecystokinin was higher in the RT v. Sed group (P < 0·01) and for solid v. beverage (P < 0·05). RER was lower for solid v. beverage (P < 0·001). Neither RT nor FFNS independently or interactively influenced food intake 2 h after post-nutritional supplements. In conclusion, RT had little influence on ingestive behaviour. The appetitive and endocrine responses suggested the solid-promoted satiety; however, the FFNS did not alter subsequent food intake.
有限的研究表明,营养补充剂的食物形式(FFNS)和抗阻训练(RT)会影响老年人的摄食行为和能量平衡。FFNS 和 RT 对急性食欲、内分泌和代谢反应的影响尚未得到充分记录。本研究评估了 FFNS 和 RT 对老年人餐后食欲感觉(饥饿感和饱腹感)、内分泌反应(血浆胰岛素、胆囊收缩素、胃饥饿素和胰高血糖素样肽-1(GLP-1))、代谢(葡萄糖、能量消耗和呼吸商)和食物摄入(饱腹感)的影响。在不同的日子里,18 名久坐不动(Sed)和 16 名进行 RT 的健康成年人(年龄 62-84 岁)分别摄入 12.5%的能量需求作为等能量和宏量营养素匹配的固体或饮料。在 4 小时内评估餐后反应。任何参数均未观察到 RT 和 FFNS 的相互作用。RT 组的空腹胆囊收缩素高于 Sed 组(P < 0.05)。RT 不影响饱腹感,但固体摄入后的饱腹感高于饮料摄入(P < 0.01)。RT 或 FFNS 均不影响饥饿感。固体摄入后血糖和胰岛素均高于饮料摄入(P < 0.01)。ghrelin、GLP-1 和能量消耗在 RT 和 FFNS 组之间没有差异。RT 组的餐后胆囊收缩素高于 Sed 组(P < 0.01)和固体摄入高于饮料摄入(P < 0.05)。RER 固体摄入低于饮料摄入(P < 0.001)。RT 和 FFNS 均不单独或相互作用影响营养补充剂后 2 小时的食物摄入。总之,RT 对摄食行为影响不大。食欲和内分泌反应表明固体促进饱腹感;然而,FFNS 并没有改变随后的食物摄入。