Validation of Modified SOFIT+: Relating Physical Activity Promoting Practices in Physical Education to Moderate-to-vigorous Physical Activity in 5–6 Year Old Children

To validate the modified System for Observing Fitness Instruction Time to measure teacher practices related physical activity promotion (SOFIT+) in education (PE) amongst 5–6-year-old-children. Participants (n = 162, 53% female, 6.0 ± 0.3 yrs) were recruited from 9 schools. Video-recordings of 45 PE lessons teachers/coaches coded using a SOFIT+. Accelerometers measured children’s moderate-to-vigorous (MVPA). Validity was assessed via multinomial regression measuring relationship both SOFIT+ index score and individual teaching with MVPA. Inter-rater reliability examined. A 1 unit increase associated increased likelihood engage 10–19 sec, 20–29 sec 30–40 MVPA, compared 0–10 sec. Most observed significantly percentage agreement ranged between 88.8% 99.7%. is valid reliable assessment MVPA