Zeigler Zachary Stephen, Nordin Trevor Carroll
College of Science, Engineering and Technology, Grand Canyon University, Phoenix, AZ, USA.
J Obes Metab Syndr. 2019 Sep;28(3):203-207. doi: 10.7570/jomes.2019.28.3.203. Epub 2019 Mar 30.
Weight cycling (WC) is a widespread behavior associated with elevated laboratory blood pressure (BP). The impact WC may have on ambulatory BP (ABP) is unknown.
Impact of self-reported WC history on ABP was assessed via cross-sectional nonexperimental design. Sixty-five women completed the Weight and Lifestyle Inventory (WALI) questionnaire. The WALI has been shown to be a reliable index of WC (r=0.87, <0.001). Data were analyzed looking at WC both as a continuous and criterion variable, and subjects were dichotomized as either WC or non-WC (NWC).
WC (n=31) were older (39.7±8.9 vs. 33.1±11.3 years), had a higher percent body fat (47.1%±6.2% vs. 41.4%±7.8%), and were less fit (21.2±5.4 vs. 26.7±7.6 mL/kg/min) than NWC (n=34). No significant correlation between laboratory systolic BP (SBP, =0.830) or diastolic BP (DBP, =0.997) and WC was observed. A significant correlation between the number of WC and systolic ABP (r=0.326, =0.010) and trend for diastolic ABP (r=0.238, =0.065) was found. SBP (23% vs. 17%, <0.001) and DBP (13% vs. 9%, <0.001) load was higher for WC compared to NWC women.
WC may deleteriously affect BP outcomes that might only be observed when ABP monitoring is used.
体重循环（WC）是一种普遍存在的行为，与实验室测量的血压（BP）升高有关。WC对动态血压（ABP）的影响尚不清楚。
通过横断面非实验设计评估自我报告的WC病史对ABP的影响。65名女性完成了体重与生活方式问卷（WALI）。WALI已被证明是WC的可靠指标（r = 0.87，<0.001）。数据分析时将WC视为连续变量和标准变量，受试者被分为WC组或非WC（NWC）组。
WC组（n = 31）比NWC组（n = 34）年龄更大（39.7±8.9岁 vs. 33.1±11.3岁），体脂百分比更高（47.1%±6.2% vs. 41.4%±7.8%），身体适应性更差（21.2±5.4 vs. 26.7±7.6 mL/kg/min）。未观察到实验室收缩压（SBP，= 0.830）或舒张压（DBP，= 0.997）与WC之间存在显著相关性。发现WC次数与收缩期ABP之间存在显著相关性（r = 0.326，= 0.010），舒张期ABP有相关趋势（r = 0.238，= 0.065）。与NWC女性相比，WC女性的SBP负荷（23% vs. 17%，<0.001）和DBP负荷（13% vs. 9%，<0.001）更高。
WC可能对血压结果产生有害影响，而这种影响可能只有在使用ABP监测时才能观察到。
