Hultquist C M, Meyers A W, Whelan J P, Klesges R C, Peacher-Ryan H, DeBon M W
Department of Psychology, University of Memphis, Tennessee 38152, USA.
Health Psychol. 1995 Mar;14(2):124-31. doi: 10.1037//0278-6133.14.2.124.
This experiment examined the metabolic effects of smoking during rest and light activity under naturalistic conditions. Thirty-nine male subjects first completed a submaximal graded exercise treadmill test to standardize activity level. Then 3 groups of subjects--smokers smoking (SS), smokers not smoking (SNS), and nonsmokers (NS)--were exposed to 3 stages of rest or 3 stages of light activity with order of rest or activity randomly determined over 2 different days. Energy expenditure was monitored continuously during these sessions. Significant increases in smokers' energy expenditure were observed during light activity when compared with smokers not smoking and nonsmokers. No differences were identified among groups at rest. These findings strengthen the conclusion that smoking or its components contribute to metabolic changes during typical levels of daily activity and suggest a mechanism for the frequently observed relationship between smoking status and body weight.
本实验研究了在自然条件下休息和轻度活动期间吸烟的代谢效应。39名男性受试者首先完成了一次次最大分级运动平板试验，以标准化活动水平。然后，3组受试者——吸烟的吸烟者（SS）、不吸烟的吸烟者（SNS）和不吸烟者（NS）——在2个不同的日子里，以随机确定的休息或活动顺序，经历3个休息阶段或3个轻度活动阶段。在这些阶段中持续监测能量消耗。与不吸烟的吸烟者和不吸烟者相比，吸烟者在轻度活动期间的能量消耗显著增加。在休息时，各组之间未发现差异。这些发现强化了以下结论：吸烟或其成分会导致日常典型活动水平期间的代谢变化，并提示了吸烟状况与体重之间常见关系的一种机制。
