School of Social and Community Medicine, University of Bristol, Canynge Hall, 39 Whatley Road, Bristol BS8 2PS, UK.
Age Ageing. 2012 Nov;41(6):776-84. doi: 10.1093/ageing/afs052. Epub 2012 Apr 26.
studies have shown that milk and dairy consumption in adulthood have beneficial effects on health.
we examined the impact of childhood and adult diet on physical performance at age 63-86 years. The Boyd Orr cohort (n = 405) is a 65-year prospective study of children who took part in a 1930's survey; the Caerphilly Prospective Study (CaPS; n = 1,195) provides data from mid-life to old age. We hypothesised that higher intakes of childhood and adult milk, calcium, protein, fat and energy would be associated with a better performance.
in fully adjusted models, a standard deviation (SD) increase in natural log-transformed childhood milk intake was associated with 5% faster walking times from the get-up and go test in Boyd Orr (95% CI: 1 to 9) and 25% lower odds of poor balance (OR: 0.75; 0.55 to 1.02). Childhood calcium intake was positively associated with walking times (4% faster per SD; 0 to 8) and a higher protein intake was associated with lower odds of poor balance (OR: 0.71; 0.54 to 0.92). In adulthood, protein intake was positively associated with walking times (2% faster per SD; 1 to 3; Boyd Orr and CaPS pooled data).
this is the first study to show positive associations of childhood milk intake with physical performance in old age.
研究表明，成年人摄入牛奶和乳制品对健康有益。
我们研究了儿童期和成年期饮食对 63-86 岁时身体机能的影响。博伊德·奥尔队列（Boyd Orr cohort）（n=405）是一项针对 65 岁人群的前瞻性研究，参与者是参加 20 世纪 30 年代调查的儿童；卡菲利前瞻性研究（Caerphilly Prospective Study，CaPS）（n=1195）提供了从中年到老年的数据。我们假设儿童期和成年期牛奶、钙、蛋白质、脂肪和能量的摄入量越高，身体机能表现越好。
在完全调整的模型中，儿童期自然对数转换牛奶摄入量每增加一个标准差，博伊德·奥尔队列的起身行走测试行走时间就会快 5%（95%CI：1 至 9），平衡能力差的几率降低 25%（OR：0.75；0.55 至 1.02）。儿童期钙摄入量与行走时间呈正相关（每标准差快 4%；0 至 8），而蛋白质摄入量较高与平衡能力差的几率降低相关（OR：0.71；0.54 至 0.92）。在成年期，蛋白质摄入量与行走时间呈正相关（每标准差快 2%；1 至 3；博伊德·奥尔队列和 CaPS 数据汇总）。
这是第一项表明儿童期牛奶摄入量与老年时身体机能呈正相关的研究。
