Table 2

Results of meta-regression with significance set at p<0.05 level

	All ACL injuries			Non-contact ACL injuries
	Slope	95% CI	p Value	Slope	95% CI	p Value
General characteristics
TTT	0.096	−0.04 to 0.24	0.18	0.020	−0.29 to 0.33	0.90
Minutes/session	−0.003	−1.41 to 0.46	0.91	−0.046	−0.14 to 0.04	0.32
Strength training
Percentage of emphasis	−0.009	−0.02 to 0.003	0.15	−0.002	−0.02 to 0.01	0.80
Minutes/session	−0.042	−0.11 to 0.02	0.21	−0.033	−0.14 to 0.08	0.55
Total duration	−0.055	−0.13 to 0.02	0.18	−0.005	−0.12 to 0.11	0.93
Explosive training
Percentage of emphasis	0.003	−0.02 to 0.03	0.80	0.016	−0.01 to 0.04	0.18
Minutes/session	0.011	−0.06 to 0.09	0.78	0.069	−0.05 to 0.19	0.25
Total duration	0.030	−0.12 to 0.18	0.70	0.160	−0.07 to 0.39	0.17
Balance training
Percentage of emphasis	0.010	−0.002 to 0.02	0.09	0.009	−0.004 to 0.02	0.17
Minutes/session	0.065	−0.01 to 0.14	0.11	0.063	−0.03 to 0.15	0.17
Total duration	0.076	0.004 to 0.15	0.04*	0.070	−0.03 to 0.17	0.16
Agility training
Percentage of emphasis	−0.007	−0.03 to 0.02	0.55	−0.020	−0.04 to 0.004	0.09
Minutes/session	−0.041	−0.16 to 0.08	0.51	−0.106	−0.23 to 0.02	0.09
Total duration	−0.059	−0.25 to 0.13	0.53	−0.167	−0.36 to 0.03	0.10
Static stretching
Percentage of emphasis	−0.003	−0.03 to 0.02	0.82	−0.031	−0.06 to −0.001	0.04*
Minutes/session	−0.009	−0.08 to 0.07	0.82	−0.100	−0.21 to 0.01	0.07
Total duration	−0.026	−0.24 to 0.19	0.82	−0.263	−0.52 to −0.01	0.04*

Results are organised by general characteristics of the programme (TTT and session duration) and training component (percentage of emphasis of component in relation to duration of session, duration of time spent in that training component per session and total duration of that training component throughout the programme).
ACL, anterior cruciate ligament; TTT, total training time.