| PA | physical activity |
| RP | risk perception |
| SE | self-efficacy |
| SNs | social norms |
| U | usage intention |
| HLR | hierarchical linear regression |
| PA | physical activity |
| RP | risk perception |
| SE | self-efficacy |
| SNs | social norms |
| U | usage intention |
| HLR | hierarchical linear regression |