Department of Medicine, Laredo Medical Center, 1700 East Saunders, Laredo, TX, 78041, USA.
Aging Clin Exp Res. 2019 May;31(5):685-693. doi: 10.1007/s40520-018-1031-9. Epub 2018 Sep 3.
Although previous studies have described a positive correlation between physical activity and 25-hydroxyvitamin D concentrations (25(OH)D), there have been inconsistent results in regard to the frequency or intensity of physical activity needed to achieve adequate 25(OH)D status.
To examine the relationship between self-reported leisure-time physical activity and 25(OH)D and 25(OHD) concentrations among US adults aged 60 years and older.
The present analysis was based on data from participants in the National Health and Nutrition Examination Survey 2007-2012. Moderate or vigorous leisure-time physical activity was calculated by min/week or metabolic equivalent task scores-minutes/week and defined according to the 2008 Physical Activity Guidelines for Americans. General linear models adjusted for confounders were created to compare mean 25(OH)D and 25(OH) concentrations across physical activity status.
A total of 4764 adults with a mean age of 69.7 years comprised the study sample. Overall, 33.3% men and 23.1% women were defined as physically active and participants' mean 25(OH)D and 25(OH)D concentration was 75.0 and 68.8 nmol/L, respectively. Older adults physically active had 8.1 and 7.1 nmol/L higher 25(OH)D and 25(OH) levels than those physically inactive, respectively. Moreover, higher 25(OH)D and 25(OH)D concentrations were consistently seen during the summer and autumn months. In contrast, sedentary older adults had on average 25(OH)D levels < 75 nmol/L irrespective of the 6-month study period examined.
Leisure-time physical activity appears to be an effective manner of maintaining adequate vitamin D concentrations later in life. Therefore, promoting physical activity in older adults should be a national public health priority.
尽管先前的研究表明，体力活动与 25-羟维生素 D 浓度（25(OH)D）之间存在正相关关系，但在实现足够的 25(OH)D 状态所需的体力活动频率或强度方面，结果并不一致。
检测美国 60 岁及以上成年人中，自我报告的休闲时间体力活动与 25(OH)D 和 25(OH)D 浓度之间的关系。
本分析基于 2007-2012 年国家健康和营养调查参与者的数据。通过每周分钟或代谢当量任务分数-分钟/周来计算中等强度或剧烈强度的休闲时间体力活动，并根据 2008 年《美国人体力活动指南》进行定义。创建了经过混杂因素调整的一般线性模型，以比较不同体力活动状态下的平均 25(OH)D 和 25(OH)D 浓度。
共有 4764 名平均年龄为 69.7 岁的成年人构成了研究样本。总体而言，33.3%的男性和 23.1%的女性被定义为体力活动者，参与者的平均 25(OH)D 和 25(OH)D 浓度分别为 75.0 和 68.8 nmol/L。与非体力活动者相比，体力活动者的 25(OH)D 和 25(OH)D 水平分别高 8.1 和 7.1 nmol/L。此外，在夏季和秋季，25(OH)D 和 25(OH)D 浓度较高。相比之下，无论研究期间为 6 个月，久坐不动的老年人的平均 25(OH)D 水平均<75 nmol/L。
休闲时间体力活动似乎是维持生命后期维生素 D 浓度充足的有效方法。因此，促进老年人的体力活动应该成为国家公共卫生的优先事项。
