BACKGROUND Forming 'habit' - defined as a learned process that generates automatic responses to contextual cues - has been suggested as a mechanism for behaviour maintenance, but few studies have applied habit theory to behaviour change. This study used process evaluation data, taken from a randomised controlled trial of a healthy child-feeding intervention for parents previously shown to be ef...

OBJECTIVE To determine the prevalence of low back pain in children and its relationship with gender, age, exercise practice and sedentary activities (time on TV and on computer and/or video game). METHODS We conducted a cross-sectional study with a sample of 1,461 students, being 754 males and 707 females enrolled in the 5(th) to 8(th) grades of all five local elementary schools of urban Ouri...