Abstract：
OBJECTIVE: This work aimed to investigate the validity of wearable activity monitors (WAMs) as an objective tool to measure the return toward normal functional mobility following abdominal wall surgery. This was achieved by quantifying and comparing pre- and postoperative physical activity (PA).
METHODS: A multicenter, prospective, observational cohort study was designed. Patients undergoing abdominal wall surgery were assessed for eligibility and consent for study participation was obtained. Participants were asked to wear a WAM (AX3, Axivity) on the wrist of their dominant hand at least 48 hours pre-operatively, for up to 2 weeks postop, and again after 6 months postop for 48 hours.
RESULTS: A cohort of 20 patients were recruited in this validation study with a mean age of 47.3 ± 13.0 years. Postoperation, the percentage median PA (±IQR) dropped to 32.6% (20.1), whereas on day 14, PA had reached 64.6% (22.7) of the preoperative value providing construct validity. Activity levels at >6 months postop increased by 16.4% on an average when compared to baseline preoperative PA (p = 0.046).
CONCLUSIONS: This study demonstrates that WAMs are valid markers of postoperative recovery following abdominal wall surgery. This was achieved by quantifying the reduction in PA postoperation, which has not been previously shown. In addition, this study suggests that abdominal wall surgery may improve the patient\'s quality of life via increased functional mobility at 6 months postop. In the future, this technology could be used to identify the patient and surgical factors that are predictors of outcome following abdominal wall surgery.
METHODS: A multicenter, prospective, observational cohort study was designed. Patients undergoing abdominal wall surgery were assessed for eligibility and consent for study participation was obtained. Participants were asked to wear a WAM (AX3, Axivity) on the wrist of their dominant hand at least 48 hours pre-operatively, for up to 2 weeks postop, and again after 6 months postop for 48 hours.
RESULTS: A cohort of 20 patients were recruited in this validation study with a mean age of 47.3 ± 13.0 years. Postoperation, the percentage median PA (±IQR) dropped to 32.6% (20.1), whereas on day 14, PA had reached 64.6% (22.7) of the preoperative value providing construct validity. Activity levels at >6 months postop increased by 16.4% on an average when compared to baseline preoperative PA (p = 0.046).
CONCLUSIONS: This study demonstrates that WAMs are valid markers of postoperative recovery following abdominal wall surgery. This was achieved by quantifying the reduction in PA postoperation, which has not been previously shown. In addition, this study suggests that abdominal wall surgery may improve the patient\'s quality of life via increased functional mobility at 6 months postop. In the future, this technology could be used to identify the patient and surgical factors that are predictors of outcome following abdominal wall surgery.
摘要：
目的：这项工作旨在研究可穿戴活动监测器（WAMs）作为客观工具的有效性，以测量腹壁手术后向正常功能移动性的恢复。这是通过量化和比较术前和术后体力活动（PA）来实现的。
方法：多中心，prospective,设计了观察性队列研究.评估接受腹壁手术的患者的资格，并获得参与研究的同意书。要求参与者在手术前至少48小时在他们的惯用手的手腕上佩戴WAM（AX3，Axivity），长达2周的时间，6个月后再次停止48小时。
结果：这项验证研究招募了20名患者，平均年龄为47.3±13.0岁。操作后,PA百分比中位数(±IQR)降至32.6%(20.1)，而在第14天,PA达到了术前值的64.6%(22.7),提供了结构效度.与基线术前PA相比，术后>6个月的活动水平平均增加了16.4％（p=0.046）。
结论：本研究表明WAM是腹壁手术后恢复的有效标志。这是通过量化术后PA的减少来实现的，以前没有显示过。此外,这项研究表明，腹壁手术可能通过增加术后6个月的功能活动度来改善患者的生活质量。在未来,这项技术可用于确定腹壁手术后预后的患者和手术因素.
方法：多中心，prospective,设计了观察性队列研究.评估接受腹壁手术的患者的资格，并获得参与研究的同意书。要求参与者在手术前至少48小时在他们的惯用手的手腕上佩戴WAM（AX3，Axivity），长达2周的时间，6个月后再次停止48小时。
结果：这项验证研究招募了20名患者，平均年龄为47.3±13.0岁。操作后,PA百分比中位数(±IQR)降至32.6%(20.1)，而在第14天,PA达到了术前值的64.6%(22.7),提供了结构效度.与基线术前PA相比，术后>6个月的活动水平平均增加了16.4％（p=0.046）。
结论：本研究表明WAM是腹壁手术后恢复的有效标志。这是通过量化术后PA的减少来实现的，以前没有显示过。此外,这项研究表明，腹壁手术可能通过增加术后6个月的功能活动度来改善患者的生活质量。在未来,这项技术可用于确定腹壁手术后预后的患者和手术因素.
