A Mixed-methods Evaluation of Sit-stand Workstations in an Office Setting: a Randomised Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 47
- 试验地点
- 1
- 主要终点
- Change from baseline in workplace sitting time at 4 and 8 weeks
研究概览
简要总结
The purpose of this study is to investigate whether a device that allows office workers to sit or stand whilst working can reduce their sitting time at work and improve their health over 8 weeks.
详细描述
Study design
Treatment arms in this two-arm parallel-group randomised controlled trial (RCT) included a sit-stand workstation intervention group (each participant received a sit-stand workstation) and a control group (usual practice).
Recruitment
- Organisation level
Office workers from one organisation were targeted by the research team in August-September 2013. Consent was sought from 11 departmental managers for employee recruitment, installation of sit-stand workstations, study contact and laboratory visits during work time. Departments were located across four buildings with varying office layout (open-plan, individual offices or a combination). Employees within the targeted departments were predominantly administrative staff.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •full-time member of staff
- •access to a work telephone and desktop computer with internet
排除标准
- •have a cardiovascular or metabolic disease
- •taking any medication
- •planned absence > 1 week during the trial
研究组 & 干预措施
Intervention
Provision of a sit-stand workstation for use at work.
干预措施: Sit-stand workstation (Other)
Control
Participants were asked to maintain their normal work practices and received no intervention. Participants were offered the opportunity to have a sit-stand workstation installed for 8 weeks after all data collection.
结局指标
主要结局
Change from baseline in workplace sitting time at 4 and 8 weeks
时间窗: Baseline (week 0), Mid-intervention (4 weeks), End-intervention (8 weeks)
An ecological momentary assessment (EMA) diary assessed time spent sitting, standing, walking and in other activities during work hours over 5 days (Monday-Friday). At 15-minute intervals participants used a diary to record their main behaviour in response to the question: "What are you doing right now?" The options were sitting, standing, walking or other. If other was selected, participants were instructed to write the activity they were doing. Time spent in each behaviour per day was estimated by multiplying the frequency of recordings by 15. A diary day was considered valid if data entries were provided for ≥75% of time spent at work. Time spent in each behaviour was calculated for each valid day and means were calculated from valid days. To be retained for analyses, participants had to provide ≥2 valid days at each time point.
次要结局
- Change from baseline in musculoskeletal discomfort or pain at the lower back at 8 weeks(Baseline (week 0), End-intervention (8 weeks))
- Acceptability of the sit-stand workstation(End-intervention (8 weeks))
- Feasibility of the sit-stand workstation(End-intervention (8 weeks))
- Change from baseline in plasma glucose at 8 weeks(Baseline (week 0), End-intervention (8 weeks))
- Change from baseline in flow-mediated dilation (FMD) at 8 weeks(Baseline (week 0), End-intervention (8 weeks))
- Change from baseline in carotid artery intima media thickness (cIMT) at 8 weeks(Baseline (week 0), End-intervention (8 weeks))
- Change from baseline in body mass index at 8 weeks(Baseline (week 0), End-intervention (8 weeks))
- Change from baseline in triglycerides at 8 weeks(Baseline (week 0), End-intervention (8 weeks))
- Change from baseline in total cholesterol at 8 weeks(Baseline (week 0), End-intervention (8 weeks))
- Change from baseline in workplace standing time at 4 and 8 weeks(Baseline (week 0), Mid-intervention (4 weeks), End-intervention (8 weeks))
- Change from baseline in workplace walking time at 4 and 8 weeks(Baseline (week 0), Mid-intervention (4 weeks), End-intervention (8 weeks))
- Change from baseline in musculoskeletal discomfort or pain at the upper back at 8 weeks(Baseline (week 0), End-intervention (8 weeks))
- Change from baseline in musculoskeletal discomfort or pain at the neck/shoulders at 8 weeks(Baseline (week 0), End-intervention (8 weeks))
研究者
Lee Graves
Lecturer/Senior Lecturer
Liverpool John Moores University