The effect of pair-based monetary contingency contracts for weight loss: Results from a randomized controlled pilot study.
Obesity (Silver Spring)
; 25(3): 506-509, 2017 03.
Article
en En
| MEDLINE
| ID: mdl-28145064
ABSTRACT
OBJECTIVE:
Monetary contingency contracts (MCCs), in which deposited money is returned contingent on weight loss, could promote weight/adiposity reduction. This study piloted individual- and pair-based MCCs (when refunds are contingent on two individuals losing weight) and assessed effects on weight/body composition.METHODS:
Seventy-seven participants with BMI greater than 25 kg/m2 were recruited. In a non-blinded, randomized controlled trial conducted in a university laboratory setting, participants were randomized in pairs via a computer-generated sequence to one of four conditions partner with pair-based refund (P-PBR), partner with individual refund (P-IR), individual weight loss with individual refund (I-IR), or no MCC (comparison). Refunds were contingent on weight loss after 4 and 8 weeks; weight/body composition was measured at 0, 4, and 8 weeks. Primary outcome measures were change in weight and fat mass.RESULTS:
Seventy-seven participants (P-PBR n = 16; P-IR n = 20; I-IR n = 22; comparison n = 19) were recruited. Deposit amount was significantly positively associated with reductions in weight/BMI. At 8 weeks, the P-PBR condition reduced fat mass more than all other conditions (P < 0.05) and reduced weight/BMI more than the I-IR condition (P < 0.05).CONCLUSIONS:
The large effect of P-PBR on fat mass suggests it would be valuable to conduct a fully powered, randomized controlled trial of pair-based MCCs.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Terapia Conductista
/
Peso Corporal
/
Pérdida de Peso
/
Índice de Masa Corporal
/
Adiposidad
/
Obesidad
Tipo de estudio:
Clinical_trials
Límite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Obesity (Silver Spring)
Asunto de la revista:
CIENCIAS DA NUTRICAO
/
FISIOLOGIA
/
METABOLISMO
Año:
2017
Tipo del documento:
Article
País de afiliación:
Reino Unido