“…The current evidence of the impact of LBP on families is more descriptive than explanatory, but it suggests that family interactions are more complex than those described by the operant-conditioning model [34,38] involving empathy, understanding, communication and congruence between partners/ family members [39]. Two recent qualitative studies on the impact of LBP on the family [40,41] report an associated reduction in shared leisure activities and time spent with family, changes in the parent and child role (e.g., children having to assist in daily duties due to parents' disability), changes in traditional gendered roles (e.g., the wife now works full-time because the husband cannot work), anger and frustration expressed by family members and financial strain (e.g., being out of work due to LBP).…”