Cluster randomised controlled trial to investigate the effectiveness and cost-effectiveness of a Structured Health Intervention For Truckers (the SHIFT study): a study protocol

Abstract

IntroductionHeavy goods vehicle (HGV) drivers exhibit higher than nationally representative rates of obesity, and obesity-related comorbidities, in comparison to other occupational groups. Their working environments are not conducive to a healthy lifestyle, yet there has been limited attention to health promotion efforts. We have developed a Structured Health Intervention For Truckers (the SHIFT programme), a multicomponent, theory-driven, health-behaviour intervention targeting physical activity, diet and sitting in HGV drivers. This paper describes the protocol of a cluster randomised controlled trial designed to evaluate the effectiveness and cost-effectiveness of the SHIFT programme.Methods and analysisHGV drivers will be recruited from a logistics company in the UK. Following baseline measurements, depots (clusters) will be randomised to either the SHIFT intervention or usual-care control arm (12 clusters in each, average cluster size 14 drivers). The 6-month SHIFT intervention includes a group-based interactive 6-hour education session, worksite champion support and equipment provision (including a Fitbit and resistance bands/balls to facilitate a ‘cab workout’). Objectively measured total daily physical activity (steps/day) will be the primary outcome. Secondary outcomes include: objectively measured light-intensity physical activity and moderate-to-vigorous physical activity, sitting time, sleep quality, markers of adiposity, blood pressure and capillary blood markers (glycated haemoglobin, low-density lipoprotein-cholesterol, high-density lipoprotein-cholesterol). Self-report questionnaires will examine fruit and vegetable intake, psychosocial and work outcomes and mental health. Quality of life and resources used (eg, general practitioner visits) will also be assessed. Measures will be collected at baseline, 6 and 12 months and analysed according to a modified intention-to-treat principle. A full process evaluation and cost-effectiveness analysis will be conducted.Ethics and disseminationEthical approval was obtained from the Loughborough University Ethics Approvals Sub-Committee (reference: R17-P063). Study findings will be disseminated through publications in research and professional journals, through conference presentations and to relevant regional and national stakeholders via online media and at dissemination events.Trial registration numberNCT10483894.

Attenuated Cardiovascular Reactivity to Acute Psychological Stress Predicts Future Fatigue Symptoms in Truck Drivers

“…This article utilizes data collected from the SHIFT trial, which adopted a cluster RCT design and involved truck drivers from 25 transport sites located throughout the Midlands region of the United Kingdom. Comprehensive details of the full trial protocol and measurements have been reported elsewhere 10,19 . After providing informed consent, participants completed a 2-hour health assessment (0 months; detailed below) and were then randomized at the cluster level into the control or intervention arm.…”

“…Full details of all measurements are reported elsewhere 10,19 . Briefly, participants were asked to fast from all food and drink (except water) for at least 4 hours before the health assessment.…”

“…The Structured Health Intervention For Truckers (SHIFT) study was a health intervention with a primary focus on improving PA in truck drivers 10 . The intervention was evaluated using a cluster randomized controlled trial (RCT).…”

“…Comprehensive details of the full trial protocol and measurements have been reported elsewhere. 10,19 After providing informed consent, participants completed a 2-hour health assessment (0 months; detailed below) and were then randomized at the cluster level into the control or intervention arm. The health assessments were repeated at 6-month follow-up.…”

Not Quite Out of the Woods

“…For example, long-haul truckers operate tractor-trailers and are sedentary for extended periods of time, and combating obesity and chronic health issues have been a focus for these workers. [23][24][25][26] Chronic diseases, especially heart disease, contribute to the largest healthcare expenditures in the United States and these are major issues for employers, as well. [27][28][29] Research has shown that improving modifiable cardiovascular risk factors greatly reduces the risk of coronary heart disease.…”