Section of Metabolism, Diabetes, and Endocrinology, Lewis Katz School of Medicine at Temple University, 3322 N Broad St, Ste 205, Philadelphia, PA, 19140, USA.
Section of Endocrinology, Diabetes, and Metabolism, University of Chicago Medicine, Chicago, IL, 60611, USA.
Arch Osteoporos. 2019 Mar 2;14(1):29. doi: 10.1007/s11657-019-0583-4.
In an analysis of NHANES 2005-2006, older, but not younger, women and men with higher levels of physical activity had higher TBS, total hip T-score, and femoral neck T-score. Even modest levels of physical activity may be a crucial component of bone health maintenance.
Physical activity is associated with improved bone parameters in adolescence, but it is not clear if this persists into adulthood. Further, it is unclear how low levels of physical activity as measured by accelerometer may impact bone parameters.
We analyzed data from subjects from NHANES 2005-2006 over the age of 20 who had accelerometry and bone mineral density (BMD) testing. We analyzed women and men separately and grouped by over or under 50 years of age: 484 younger women, 486 older women, 604 younger men, and 609 older men. Moderate-to-vigorous physical activity (MVPA) was categorized as low (less than 5 min daily), intermediate (5-20 min daily), or high (at least 20 min daily).
Among younger women and men, there was no significant relationship between MVPA and BMD or trabecular bone score (TBS). Conversely, older women with intermediate and high MVPA had higher TBS (1.360 ± 0.008 and 1.377 ± 0.009 vs 1.298 ± 0.010, p < 0.001), total hip T-score (- 1.02 ± 0.13 and - 0.90 ± 0.09 vs. - 1.51 ± 0.08, p < 0.01), and femoral neck T-score than women with low MVPA, respectively. Similarly, older men with high MVPA had higher TBS, total hip T-score, and femoral neck T-score than men with intermediate and low MVPA.
Older, but not younger, women and men with higher levels of activity had higher BMD and TBS. Benefits were noted with as little as 5-20 min of daily physical activity. Our results suggest that physical activity is a crucial component of bone health maintenance.
在对 NHANES 2005-2006 的分析中，较高水平体力活动的老年女性和男性，其 TBS、全髋 T 评分和股骨颈 T 评分均较高。即使是适度的体力活动，也可能是维持骨骼健康的关键组成部分。
体力活动与青春期骨骼参数的改善有关，但目前尚不清楚这种情况是否会持续到成年期。此外，目前尚不清楚加速度计测量的低水平体力活动如何影响骨骼参数。
我们分析了 NHANES 2005-2006 中年龄在 20 岁以上、有加速度计和骨密度 (BMD) 检测的受试者数据。我们分别对女性和男性进行了分析，并根据年龄分为 50 岁以上和以下：484 名年轻女性、486 名老年女性、604 名年轻男性和 609 名老年男性。中高强度体力活动 (MVPA) 分为低 (每日少于 5 分钟)、中 (每日 5-20 分钟) 和高 (每日至少 20 分钟)。
在年轻女性和男性中，MVPA 与 BMD 或骨小梁评分 (TBS) 之间没有显著关系。相反，中高强度 MVPA 的老年女性的 TBS 更高 (1.360±0.008 和 1.377±0.009 比 1.298±0.010，p<0.001)，全髋 T 评分 (-1.02±0.13 和 -0.90±0.09 比 -1.51±0.08，p<0.01)和股骨颈 T 评分也高于低 MVPA 的女性。同样，高 MVPA 的老年男性的 TBS、全髋 T 评分和股骨颈 T 评分均高于中强度和低强度 MVPA 的男性。
较高水平活动的老年女性和男性，其 BMD 和 TBS 更高。每天只需 5-20 分钟的体力活动就可获得益处。我们的结果表明，体力活动是维持骨骼健康的关键组成部分。
