Wageningen University & Research, Wageningen, The Netherlands.
Department of Surgery, Rijnstate Hospital & Vitalys Clinics, Postal number 1190, 6800 TA, Arnhem, The Netherlands.
Obes Surg. 2019 Dec;29(12):3874-3881. doi: 10.1007/s11695-019-04072-3.
There is a huge variation in weight loss outcomes between bariatric patients, possibly due to differences in caloric intake and changes in the amount physical activity. However, the association between the change in energy intake and weight loss has not yet been the subject of an extensive investigation.
To explore the relationship between total energy intake and % total body weight loss (%TBWL) over a period of 4 years post-surgery.
Of the 466 patients who were asked to participate, a total 135 patients were included in this study. They all underwent bariatric surgery, 54 with primary Roux-en-Y Gastric Bypass, 43 redo Roux-en-Y gastric bypass after laparoscopic gastric banding and 38 laparoscopic sleeve gastrectomy. Pre- and post-operative dietary intake and physical activity were collected for both a weekday and a weekend day. The main analysis was performed using multiple regression analyses and was adjusted for age at surgery, BMI at baseline, obstructive sleep apnoea syndrome, type of eating behaviour, change in physical activity and protein intake (g/kg body weight).
%TBWL over time, post-operative energy intake and change in physical activity did not differ between the different procedure groups (p = 0.312, p = 0.988 and p = 0.050, respectively). Change in energy intake did differ between different procedure groups (p = 0.031) and linear regression showed that this was related to total body weight loss for the fully adjusted model (β = - 0.004, p = 0.014).
This study showed a higher decrease in energy intake to be related with a higher %TBWL.
减重患者的减肥效果存在巨大差异，这可能是由于热量摄入和体力活动量的变化不同所致。然而，能量摄入的变化与体重减轻之间的关系尚未得到广泛研究。
探讨手术后 4 年内总能量摄入与体重减轻百分比（%TBWL）之间的关系。
在被要求参与的 466 名患者中，共有 135 名患者被纳入本研究。他们都接受了减重手术，其中 54 例行原发性 Roux-en-Y 胃旁路术，43 例行腹腔镜胃带后再行 Roux-en-Y 胃旁路术，38 例行腹腔镜袖状胃切除术。收集了患者术前和术后的饮食摄入和体力活动情况，包括工作日和周末。主要分析采用多元回归分析，并根据手术时的年龄、基线 BMI、阻塞性睡眠呼吸暂停综合征、进食行为类型、体力活动变化和蛋白质摄入量（g/kg 体重）进行调整。
不同手术组之间，随时间推移的%TBWL、术后能量摄入和体力活动变化无差异（p = 0.312、p = 0.988 和 p = 0.050）。不同手术组之间的能量摄入变化存在差异（p = 0.031），线性回归显示，对于完全调整的模型，这与总体重减轻有关（β = - 0.004，p = 0.014）。
本研究表明，能量摄入的减少与%TBWL 更高相关。
