| Correlates variables | Related to MVPA | Unrelated to MVPA References No | Summary code | References No | Asso (−/+) | Asso | % Studies |
| Demographic and biological variables | Sex (boys) | [10, 23–33] | + | [34–36] | + + | 12/16 75% | [37] | − | | | | School level (high school) | [35] | + | [27] | 0 | 1/3 33% | [36] | − | | | | Grade | [23, 36, 38, 39] | − | [27, 34] | ? | 4/8 50% | [31, 33] | + | | | | BMI (overweight) | [40] | − | [10, 33, 41, 42] | 0 | 1/5 20% | Skill level (high) | [26] | + | | ND | | Cardiorespiratory fitness(healthy) | [43] | + | | ND | | Ethnicity (White) | [24, 42, 44] | + | | + + | 3/3 100% | Instruction-related variables | Class size | [10, 45] | + | [31, 46–48] | 0 | 2/8 25% | [49, 50] | − | | | | Class gender | Boys-only | [32, 44, 47, 51, 52] | + | | + + | 5/5 100% | Co-educational | [48, 52] | + | [44, 51] | ? | 2/5 40% | [32] | − | | | | Girls-only | [32, 44, 47, 48, 51, 52] | − | | − − | 6/6 100% | Lesson length | [51] | − | [47] | ND | | PE activities | Team games | [10, 26, 30, 35–38, 40] | + | [27, 31, 47] | + + | 8/12 67% | [34] | − | | | | Individual games | [38, 47] | + | [10, 26, 30, 31, 34–37] | 0 | 2/10 20% | Movement activities | [10, 26, 30, 35–38, 40, 47, 53] | − | [31, 34] | − − | 10/12 83% | Individual activities | [34, 38, 53] | + | [10, 26, 31, 35, 37, 47] | 0 | 3/10 30% | [36] | − | | | | Lesson context | Fitness activities | [32, 48, 50] | + | [45, 47, 51, 52] | ? | 3/7 43% | Free play | | | [32, 45, 47, 48, 50–52] | 0 | 0/7 0% | Game play | [32, 51, 52] | + | [45, 47, 48, 50] | ? | 3/7 43% | Skill drills | [32, 52] | + | [45, 47, 48, 50, 51] | 0 | 2/7 29% | Management | [32] | − | [45, 47, 48, 50–52] | 0 | 1/7 14% | Knowledge | [32, 47, 48, 50, 51] | − | [45, 52] | − − | 5/7 71% | Teacher gender (male) | | | [47, 48, 50] | 0 | 0/3 0% | Teacher experience | [45] | − | | ND | | Teacher type (PE specialist) | | | [50] | ND | | Teacher behavior | Fitness promotion | | | [47] | ND | | Fitness demonstration | | | [47] | ND | | General instruction | [47] | − | | ND | | Observation | [47] | + | | ND | | Class management | | | [47] | ND | | Other tasks | | | [47] | ND | | School physical environment variables | Lesson location (outdoors) | [45, 48, 50, 54] | + | [10, 47] | + + | 4/6 67% | Accessibility of facilities/equipment | [49] | + | | ND | | Large Space | [47] | + | [31] | ND | | Natural environment (Fall) | [54] | + | [47] | ND | | School structure quality | | | [11] | ND | | School structure quantity | | | [11] | ND | | Psychological variables | Self-determined motivation | [55] | + | | ND | | Autonomous motivation | [46] | + | | ND | | Controlled motivation | | | [46] | ND | | Intrinsic motivation | [56] | + | [2, 57] | 0 | 1/3 33% | Identified regulation | | | [2, 56, 57] | 0 | 0/3 0% | Introjected regulation | | | [57] | ND | | External regulation | [2] | − | [56, 57] | 0 | 1/3 33% | Amotivation | [56] | − | [2, 46, 57] | 0 | 1/4 25% | Competence | [39] | + | [25, 57, 58] | 0 | 1/4 25% | Autonomy | [58] | + | [57] | ND | | Relatedness | [58] | + | [57] | ND | | Expectancy beliefs | [29, 59] | + | [28] | + + | 2/3 67% | Subjective task values | [28, 59, 60] | + | [29] | + + | 3/4 75% | Achievement goals | [61] | + | | ND | | Self-efficacy | [59–61] | + | [10, 23, 62] | ? | 3/6 50% | Outcome expectancy | [59] | + | | ND | | Enjoyment | [2, 62] | + | | + + | 2/3 67% | [25] | − | | | |
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