Results
A summary of response rates by method can be found in Table 
Response rates for survey and qualitative methods***Qualitative data extracts are labelled to indicate participant ID (P (participant); C (coach); and (club representative)), club (NOR1-3, UK1-5, POR1-3, NL1-4) and data source (PPFGD [post-program focus group], 12MFGD [12-month focus group], OBS [observations], INT [interview]. Additional examples from the qualitative data can be found in Additional File 