Chatard J C, Boutet C, Tourny C, Garcia S, Berthouze S, Guézennec C Y
Laboratoire de Physiologie, GIP Exercise, Faculté de Médecine, Université de Saint-Etienne, France.
Eur J Appl Physiol Occup Physiol. 1998;77(1-2):157-63. doi: 10.1007/s004210050314.
The nutritional status of elderly sportsmen has not been reported on, neither has the nutritional balance nor the precise relationship between nutritional status and physical fitness been detailed for this population. Thus, group of 18 sportsmen [age 63 (SD 4.5) years] was monitored by weighing their food during a 6-day period. Macro nutrient, mineral and vitamin content was derived from tables. Daily energy expenditure (DEE) and sport activity (DSA) were quantified over a 7-day period using a questionnaire. Physical fitness was assessed by maximal oxygen uptake (VO2max) measurements. The DEE was 11429 (SD 1890) kJ x day(-1). The DSA corresponded to 38% of DEE and VO2max to 35.9 (SD 6.1) ml x min(-1) x kg(-1). When compared with French recommended dietary allowances (RDA) intakes were higher for energy (+ 24%), macro nutrients, and most minerals and vitamins. Despite high energy intakes, some subjects had mineral and vitamin deficits. Energy intakes were significantly related to intakes of magnesium, phosphorus, iron, vitamins B2, B6, C and to VO2max, but not to age. Stepwise regressions indicated that vitamin C intake was the only determinant to have a relationship with VO2max. Thus, most elderly sportsmen had higher nutritional status than RDA, although some had mineral and vitamin deficits. It is therefore suggested that elderly sportsmen should be encouraged to consume food with higher mineral and vitamin contents.
老年运动员的营养状况此前尚无相关报道,该群体的营养平衡以及营养状况与身体素质之间的精确关系也未得到详细阐述。因此,我们对18名运动员(年龄63岁,标准差4.5岁)进行了为期6天的食物称重监测。宏量营养素、矿物质和维生素含量根据表格得出。通过问卷调查对7天内的每日能量消耗(DEE)和体育活动(DSA)进行量化。通过测量最大摄氧量(VO2max)来评估身体素质。DEE为11429(标准差1890)kJ·天⁻¹。DSA相当于DEE的38%,VO2max为35.9(标准差6.1)ml·分钟⁻¹·千克⁻¹。与法国推荐膳食摄入量(RDA)相比,能量、宏量营养素以及大多数矿物质和维生素的摄入量更高(+24%)。尽管能量摄入量较高,但部分受试者仍存在矿物质和维生素缺乏的情况。能量摄入量与镁、磷、铁、维生素B2、B6、C的摄入量以及VO2max显著相关,但与年龄无关。逐步回归分析表明,维生素C摄入量是唯一与VO2max相关的决定因素。因此,尽管部分老年运动员存在矿物质和维生素缺乏的情况,但大多数人的营养状况高于RDA。所以建议鼓励老年运动员食用矿物质和维生素含量更高的食物。