Department of Sports Science, Daejin University, Pocheon, Korea.
Department of Internal Medicine, Eulji University School of Medicine, Daejeon, Korea.
Diabetes Metab J. 2020 Apr;44(2):316-325. doi: 10.4093/dmj.2019.0029. Epub 2019 Jul 12.
Sedentary behavior (SB) has emerged as a new risk factor for cardiovascular accidents. We investigated whether physical activity levels or SB were related to percent body fat (%BF) in type 2 diabetes mellitus (T2DM).
In this cross sectional study, we measured the duration of SB, light physical activity (LPA), moderate to vigorous physical activity (MVPA), total energy expenditure, and step counts using a wireless activity tracker (Fitbit HR; FB) for 7 days in free-living conditions, along with %BF using a bio impedance analyzer (Inbody; Biospace) in 120 smartphone users with T2DM. Subjects were divided into exercise (Exe, =68) and non-exercise (nonExe, =52) groups based on self-reports of whether the recommended exercises (30 min/day, 3 days/week for 3 months) were performed. SBt, LPAt, MVPAt were transformed from SB, LPA, MVPA for normally distributed variables.
Participants were: female, 59.2%; age, 59.3±8.4 years; body mass index, 25.5±3.4 kg/m²; glycosylated hemoglobin (HbA1c), 7.6%±1.2%; %BF, 30.4%±7.1%. They performed SB for 15.7±3.7 hr/day, LPA for 4.4±1.7 hr/day, and MVPA for 0.9±0.8 hr/day. The %BF was related to SBt and LPAt, but not to MVPA after adjustments for age, gender, and HbA1c. VPA was significantly higher in the Exe group than in the nonExe group, but SB, LPA, and moderate physical activity were not different. Predicted %BF was 89.494 to 0.105 (age), -13.047 (gender), -0.507 (HbA1c), -7.655 (LPAt) (F[4, 64]=62.929, <0.001), with an ² of 0.785 in multiple linear regression analysis.
Reduced body fat in elderly diabetic patients might be associated with reduced inactivity and increased LPA.
久坐行为（SB）已成为心血管意外的新危险因素。我们研究了体力活动水平或 SB 是否与 2 型糖尿病（T2DM）患者的体脂肪百分比（%BF）有关。
在这项横断面研究中，我们使用无线活动追踪器（Fitbit HR；FB）在自由生活条件下测量了 7 天的 SB、低强度体力活动（LPA）、中高强度体力活动（MVPA）的持续时间、总能量消耗和步数，并使用生物阻抗分析仪（Inbody；Biospace）测量了 120 名智能手机用户的 %BF。根据是否进行了推荐的运动（30 分钟/天，每周 3 天，持续 3 个月），将受试者分为运动（Exe，=68）和非运动（nonExe，=52）组。SBt、LPAt、MVPAt 为正态分布变量的 SB、LPA、MVPA 的转换值。
参与者为：女性，59.2%；年龄，59.3±8.4 岁；体重指数，25.5±3.4 kg/m²；糖化血红蛋白（HbA1c），7.6%±1.2%；%BF，30.4%±7.1%。他们每天进行 SB 15.7±3.7 小时，LPA 4.4±1.7 小时，MVPA 0.9±0.8 小时。调整年龄、性别和 HbA1c 后，%BF 与 SBt 和 LPAt 相关，但与 MVPA 无关。与非运动组相比，运动组的 VPA 明显更高，但 SB、LPA 和中等强度体力活动无差异。在多元线性回归分析中，预测的 %BF 为 0.105（年龄），-13.047（性别），-0.507（HbA1c），-7.655（LPAt）（F[4, 64]=62.929，<0.001），²为 0.785。
老年糖尿病患者体脂减少可能与活动减少和 LPA 增加有关。
