Kinetic and kinematic measures of the front row players during the engagement phase, across the three different engagement techniques
| Variable\category | CTPE | CTS | PreBind |
|---|---|---|---|
| Force (kN) | |||
| Peak of total compression force (sum of front row players)# | 9.8 (2.7)3 | 8.8 (2.2)3 | 6.3 (1.6)1,2 |
| Loss of total compression force during the ‘rebound’# | 6.1 (2.0)3 | 5.2 (1.6)3 | 3.3 (1.5)1,2 |
| Peak acceleration at the cervical level (g) | |||
| Average of the individual peaks of front row players# | 6.01 (0.64)3 | 5.73 (0.69)3 | 4.90 (0.70)1,2 |
| Maximum individual peaks of front row players | 8.22 (0.89) | 8.06 (1.44) | 6.87 (1.37) |
| Hip angle range of motion in the sagittal plane (degree) | |||
| Player A1# | 39 (17)2 | 26 (13)1 | 29 (13) |
| Player A3# | 45 (11)3 | 36 (15) | 34 (13)1 |
| Player B1 | 25 (12) | 25 (8) | 19 (9) |
| Player B3# | 47 (18)3 | 40 (17) | 27 (14)1 |
| Vertical scrum excursion in the sagittal plane (m) | |||
| Left side of scrum (attacking team viewpoint) | 0.14 (0.08) | 0.11 (0.04) | 0.09 (0.03) |
| Right side of scrum | 0.12 (0.05) | 0.11 (0.04) | 0.10 (0.04) |
All measures are reported as mean (SD). Significant main effect (p<0.05) between engagement techniques (#) and pairwise comparisons are reported by the following convention: 1=different from CTPE; 2=different from CTS; 3=different from PreBind.
CTPE, crouch-touch-pause-engage; CTS, crouch-touch-set.