Table 3. Cut-off values (exercise hours) of musculoskeletal problems.
Lower-grade elementary | Higher-grade elementary | Junior high school | Total | ||||
---|---|---|---|---|---|---|---|
Boys | Girls | Boys | Girls | Boys | Girls | ||
Stand flexion | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 0 | 7 |
One-leg stand | 1.5 | 1.5 | 1.5 | 1.5 | 7 | 3.5 | 1.5 |
Fracture or dislocation | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
Osgood disease | 1.5 | – | 3.5 | 0 | 10 | 7 | 7 |
Baseball elbow | – | – | 7 | 7 | 10 | 7 | 7 |
Spondylolysis | – | – | 7 | 1.5 | 7 | 1.5 | 7 |
Fatigue fracture | – | 1.5 | 3.5 | 1.5 | 10 | 3.5 | 7 |