Table 2 Early and mid-late adolescent explanations about physical activity. Vignette theme Sub themes - skeleton Adolescence Meaning units Early/Mid-late Mid-to-late adolescence Meaning units Early/Mid-late Friends or don’t know anyone Ease of participation Comfort level Assistance Social decisions 64 / 12 94 / 31 Good or not good enough Skill level Embarrassing situations Ease of participation Pressure Cues from others Discovering skills 27 / 29 57 / 69 Fun or not fun Presence of others Skill level Feelings Ease of participation Competition Pressure 40 / 20 66 / 28 Good feeling or gross Feelings about self Fitness level Atmosphere Others’ impressions Hygiene 32 / 13 33 / 23 Peer support or peer pressure Judged Feedback Encouragement Acceptance 8 / 20 19 / 31 171/94 269/182 Total: 716 265 451 The meaning units in each cohort are presented by positive aspect / negative aspect