Study about the Evolution of Joint Mobility in Pupils at the Primary School Level
Table 1: Table 1. General results for flexibility evolution in the 1st to 4th grade pupils
| SCHOOLBOYS | SCHOOLGIRLS | ||||||
| Item no. | Shoulder | Hip | Ankle | Grade | Shoulder | Hip | Ankle |
| Grade | |||||||
| flexibility | flexibility | flexibility | flexibility | flexibility | flexibility | ||
| 1st grade | 34.5 | -13.85 | 38.7 | 1st grade | 31.75 | -5 | 39.55 |
| Arithmetic mean 2nd grade 3rd grade 4th grade Arithmetic mean | 39.35 | -7.65 | 46.8 | 2nd grade | 42.5 | -3.05 | 40.65 |
| 45.7 | -2.65 | 50.7 | 3rd grade | 41.4 | -4 | 49.6 | |
| 39.7 | -5.3 | 47.5 | 4th grade | 45.5 | 2.7 | 48.4 | |
| 39.812 | -7.362 | 45.925 | Arithmetic mean | 40.287 | -2.334 | 44.55 | |
| Standard deviation Coefficient of variation | 4.586 | 4.783 | 5.107 | Standard deviation | 5.949 | 3.451 | 5.181 |
| Coefficient of | |||||||
| 11.520 | -64.964 | 11.120 | 14.767 | -147.654 | 11.630 | ||
| variation |