Aidan Q Innes1,2, Greig Thomson1, Mary Cotter1, James A King3,4, Niels B J Vollaard5, Benjamin M Kelly6,7. 1. Nuffield Health Research Group, Nuffield Health, Ashley Avenue, Epsom, Surrey, KT18 5AL, UK. 2. Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, M15 6GX, UK. 3. National Centre for Sport and Exercise Medicine, Loughborough University, Loughborough, LE11 3TU, UK. 4. National Institute for Health Research Leicester Biomedical Research Centre, Leicester, LE3 8QD, UK. 5. Faculty of Health Sciences and Sport, University of Stirling, Stirling, FK9 4LA, UK. 6. Nuffield Health Research Group, Nuffield Health, Ashley Avenue, Epsom, Surrey, KT18 5AL, UK. Benjamin.kelly@nuffieldhealth.com. 7. Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, M15 6GX, UK. Benjamin.kelly@nuffieldhealth.com.
Abstract
BACKGROUND: Finding effective intervention strategies to combat rising obesity levels could significantly reduce the burden that obesity and associated non-communicable diseases places on both individuals and the National Health Service. METHODS: In this parallel randomised-controlled trial, 76 participants who are overweight or obese (50 female) were given free access to a fitness centre for the duration of the 12-week intervention and randomised to one of three interventions. The commercial intervention, the Healthy Weight Programme, (HWP, n = 25, 10/15 men/women) consisted of twelve 1-h nutrition coaching sessions with a nutritionist delivered as a mixture of group and 1 to 1 sessions. In addition, twice-weekly exercise sessions (24 in total) were delivered by personal trainers for 12 weeks. The NHS intervention (n = 25, 8/17 men/women) consisted of following an entirely self-managed 12-week online NHS resource. The GYM intervention (n = 26, 8/18 men/women) receivedno guidance or formal intervention. All participants were provided with a gym induction for safety and both the NHS and GYM participants were familiarised with ACSM physical activity guidelines by way of a hand-out. RESULTS: The overall follow-up rate was 83%. Body mass was significantly reduced at post-intervention in all groups (HWP: N = 18, - 5.17 ± 4.22 kg, NHS: N = 21-4.19 ± 5.49 kg; GYM: N = 24-1.17 ± 3.00 kg; p < 0.001) with greater reductions observed in HWP and NHS groups compared to GYM (p < 0.05). Out with body mass and BMI, there were no additional statistically significant time x intervention interaction effects. CONCLUSIONS: This is the first study to evaluate the efficacy of both a free online NHS self-help weight-loss tool and a commercial weight loss programme that provides face-to-face nutritional support and supervised exercise. The findings suggest that both interventions are superior to an active control condition with regard to eliciting short-term weight-loss. TRIAL REGISTRATION: ISRCTN Registry - ISRCTN31489026. Prospectively registered: 27/07/16.
RCT Entities:
BACKGROUND: Finding effective intervention strategies to combat rising obesity levels could significantly reduce the burden that obesity and associated non-communicable diseases places on both individuals and the National Health Service. METHODS: In this parallel randomised-controlled trial, 76 participants who are overweight or obese (50 female) were given free access to a fitness centre for the duration of the 12-week intervention and randomised to one of three interventions. The commercial intervention, the Healthy Weight Programme, (HWP, n = 25, 10/15 men/women) consisted of twelve 1-h nutrition coaching sessions with a nutritionist delivered as a mixture of group and 1 to 1 sessions. In addition, twice-weekly exercise sessions (24 in total) were delivered by personal trainers for 12 weeks. The NHS intervention (n = 25, 8/17 men/women) consisted of following an entirely self-managed 12-week online NHS resource. The GYM intervention (n = 26, 8/18 men/women) received no guidance or formal intervention. All participants were provided with a gym induction for safety and both the NHS and GYM participants were familiarised with ACSM physical activity guidelines by way of a hand-out. RESULTS: The overall follow-up rate was 83%. Body mass was significantly reduced at post-intervention in all groups (HWP: N = 18, - 5.17 ± 4.22 kg, NHS: N = 21-4.19 ± 5.49 kg; GYM: N = 24-1.17 ± 3.00 kg; p < 0.001) with greater reductions observed in HWP and NHS groups compared to GYM (p < 0.05). Out with body mass and BMI, there were no additional statistically significant time x intervention interaction effects. CONCLUSIONS: This is the first study to evaluate the efficacy of both a free online NHS self-help weight-loss tool and a commercial weight loss programme that provides face-to-face nutritional support and supervised exercise. The findings suggest that both interventions are superior to an active control condition with regard to eliciting short-term weight-loss. TRIAL REGISTRATION: ISRCTN Registry - ISRCTN31489026. Prospectively registered: 27/07/16.
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