Figure 1
The sensor locations and joint angle definition.
Figure 2
The main phases for snatch and clean techniques.
Figure 3
The joint angles during the snatch and clean technique with the p-value.
Table 1
Joint angle data (mean ± SD°) for snatch and clean at each phase.
| SHOULDER | ELBOW | TRUNK | HIP | KNEE | ||
|---|---|---|---|---|---|---|
| Start | Snatch | 22.1 ± 8.0 | 184.0 ± 5.5 | 117.0 ± 28.2 | 24.3 ± 17.3 | 62.4 ± 10.1 |
| Clean | 25.2 ± 7.6 | 176.4 ± 3.9** | 136.8 ± 28.6* | 27.0 ± 17.1 | 77.5 ± 12.1** | |
| 1st pull | Snatch | 26.4 ± 11.4 | 183.0 ± 4.9 | 139.0 ± 17.5 | 48.7 ± 20.5 | 119.8 ± 9.6 |
| Clean | 25.5 ± 7.5 | 170.7 ± 8.3** | 148.2 ± 21.2 | 53.1 ± 20.8 | 129.6 ± 9.0** | |
| Transition | Snatch | 8.8 ± 13.5 | 187.7 ± 7.4 | 153.9 ± 19.7 | 101.9 ± 28.1 | 123.9 ± 9.5 |
| Clean | 10.9 ± 9.6 | 172.0 ± 11.2** | 159.1 ± 15.0 | 101.5 ± 16.0 | 126.8 ± 7.7 | |
| 2nd pull | Snatch | 1.2 ± 15.5 | 183.1 ± 10.3 | 157.5 ± 9.7 | 172.6 ± 7.9 | 154.3 ± 9.0 |
| Clean | – 5.1 ± 9.9 | 157.9 ± 17.4** | 163.3 ± 10.7 | 174.1 ± 5.2 | 159.1 ± 4.6* | |
| Turnover | Snatch | 159.9 ± 6.9 | 176.0 ± 8.5 | 147.9 ± 10.4 | 60.6 ± 18.1 | 71.2 ± 11.8 |
| Clean | 86.3 ± 9.5* | 65.2 ± 12.6** | 147.1 ± 5.5 | 74.9 ± 14.9* | 77.0 ± 14.5 | |
| Catch | Snatch | 160.8 ± 6.1 | 179.8 ± 7.5 | 146.5 ± 10.2 | 51.3 ± 17.9 | 58.4 ± 13.3 |
| Clean | 85.5 ± 8.3* | 63.2 ± 12.5** | 147.0 ± 8.9 | 49.8 ± 15.4 | 58.4 ± 12.9 | |
| End | Snatch | 158.4 ± 6.9 | 180.9 ± 6.7 | 162.9 ± 9.7 | 149.3 ± 14.9 | 162.9 ± 10.5 |
| Clean | 30.5 ± 17.1* | 68.3 ± 14.0** | 154.3 ± 6.2** | 146.9 ± 10.9 | 155.6 ± 10.0* |
[i] Significantly different (* p < 0.05, ** p < 0.01) from snatch.
Figure 4
The phase comparison between the a) snatch and b) clean techniques.