Department of Physical Therapy, University of Pittsburgh, Pittsburgh, PA 15260, USA.
Obes Surg. 2011 Aug;21(8):1243-9. doi: 10.1007/s11695-010-0327-4.
A better understanding of the physical activity behavior of individuals who undergo bariatric surgery will enable the development of effective post-surgical exercise guidelines and interventions to enhance weight loss outcomes. This study characterized the physical activity profile and physical function of 40 subjects 2-5 years post-bariatric surgery and examined the association between physical activity, physical function, and weight loss after surgery.
Moderate-to-vigorous intensity physical activity (MVPA) was assessed with the BodyMedia SenseWear® Pro (SWPro) armband, and physical function (PF) was measured using the physical function subscale of the 36-Item Short Form Health Survey instrument (SF-36(PF)). Height and weight were measured.
Percent of excess weight loss (%EWL) was associated with MVPA (r = 0.44, p = 0.01) and PF (r = 0.38, p = 0.02); MVPA was not associated with PF (r = 0.24, p = 0.14). Regression analysis demonstrated that MVPA was associated with %EWL (β = 0.38, t = 2.43, p = 0.02). Subjects who participated in ≥150 min/week of MVPA had a greater %EWL (68.2 ± 19, p = 0.01) than those who participated in <150 min/week (52.5 ± 17.4).
Results suggest that subjects are capable of performing most mobility activities. However, the lack of an association between PF and MVPA suggests that a higher level of PF does not necessarily correspond to a higher level of MVPA participation. Thus, the barriers to adoption of a more physically active lifestyle may not be fully explained by the subjects' physical limitations. Further understanding of this relationship is needed for the development of post-surgical weight loss guidelines and interventions.
更好地了解接受减重手术后个体的身体活动行为，将有助于制定有效的术后运动指南和干预措施，以增强减重效果。本研究描述了 40 名接受减重手术后 2-5 年的个体的身体活动概况和身体功能，并探讨了身体活动、身体功能与手术后体重减轻之间的关系。
使用 BodyMedia SenseWear® Pro（SWPro）臂带评估中高强度身体活动（MVPA），使用 36 项简短健康调查问卷（SF-36(PF)）的身体功能子量表测量身体功能（PF）。测量身高和体重。
体重减轻百分比（%EWL）与 MVPA（r = 0.44，p = 0.01）和 PF（r = 0.38，p = 0.02）相关；MVPA 与 PF 无关（r = 0.24，p = 0.14）。回归分析表明，MVPA 与%EWL 相关（β = 0.38，t = 2.43，p = 0.02）。每周进行≥150 分钟 MVPA 的患者比每周进行<150 分钟 MVPA 的患者体重减轻百分比更高（68.2 ± 19，p = 0.01）。
结果表明，患者能够进行大多数活动。然而，PF 与 MVPA 之间缺乏关联表明，更高的 PF 水平不一定对应更高水平的 MVPA 参与。因此，采用更积极的生活方式的障碍可能无法完全用患者的身体限制来解释。为了制定术后减重指南和干预措施，需要进一步了解这种关系。
