Ballor D L, Tommerup L J, Thomas D P, Smith D B, Keesey R E
Department of Physical Education and Dance, University of Wisconsin, Madison 53706.
J Appl Physiol (1985). 1990 Jun;68(6):2612-7. doi: 10.1152/jappl.1990.68.6.2612.
The combined influence of exercise training and dietary restriction on daily energy expenditure was evaluated by exposing 48 male Sprague-Dawley rats to one of three food intake conditions [ad libitum (AL), moderately restricted (MR), or severely restricted (SR)] and to one of two exercise conditions [treadmill exercised (E) or cage confined (CC)]. After 10 wk of exercise and dietary restriction, the MR-CC and MR-E rats weighed 84 and 86%, respectively, of AL-CC, whereas the SR-CC and SR-E rats weighed 66 and 68% of AL-CC. Dietary restriction and subsequent weight loss produced significant reductions in both total and resting daily energy expenditure. Exercise partially reversed this effect, but the extent of this reversal diminished as the severity of dietary restriction was increased. These results raise the distinct possibility that inconsistencies in the current literature concerning the effects of exercise on whole body metabolism during periods of dietary restriction might be reconciled by an appreciation and an understanding of the influence that duration of exercise training and severity of food restriction have on this measure.
通过将48只雄性斯普拉格-道利大鼠置于三种食物摄入条件之一（自由进食（AL）、适度限制（MR）或严格限制（SR））以及两种运动条件之一（跑步机运动（E）或笼养（CC）），评估运动训练和饮食限制对每日能量消耗的综合影响。经过10周的运动和饮食限制后，MR-CC组和MR-E组大鼠的体重分别为AL-CC组的84%和86%，而SR-CC组和SR-E组大鼠的体重为AL-CC组的66%和68%。饮食限制及随后的体重减轻使每日总能量消耗和静息能量消耗均显著降低。运动部分逆转了这种影响，但随着饮食限制程度的增加，这种逆转程度减小。这些结果表明，目前关于饮食限制期间运动对全身代谢影响的文献中存在的不一致之处，有可能通过认识和理解运动训练持续时间和食物限制程度对该指标的影响而得到调和。
