Isokinetic strength effects of FIFA's "The 11+" injury prevention training programme

Core stability training on lower limb balance strength

“…These findings led us to provide an insight about the core stability training effectiveness in reducing the athletes' functional deficiencies and improving the lower limbs' neuromuscular control. The pre-and post-training results demonstrate that the changes in the values of muscle imbalances and asymmetries are similar to those that have been reported by previous researchers (Brito et al, 2010;Daneshjoo et al, 2012Daneshjoo et al, , 2013. In the present study, the core stability training programme significantly increased the peak torque (flexion/extension) ratios between pre-and post-intervention in both legs at 1.05 and 3.14 rad · s −1 by 7.7% and 9.5%, respectively.…”

“…Daneshjoo et al (2012) showed that the core stability programme FIFA 11+ was effective in improving both concentric and eccentric quadriceps and hamstring strength in young male professional football players. In addition, Brito et al (2010) conducted the FIFA 11+ programme on a similar population and found the programme to be significantly effective in increasing the conventional isokinetic strength ratio between knee flexors and extensors at 1.05 rad · s −1 by 14.8% and the dynamic conventional ratio by 13.8% in the non-dominant leg. However, both studies (Brito et al, 2010;Daneshjoo et al, 2012) were not experimental (one-group, pre-post design) and the power significance of their results appears questionable.…”

“…In addition, Brito et al (2010) conducted the FIFA 11+ programme on a similar population and found the programme to be significantly effective in increasing the conventional isokinetic strength ratio between knee flexors and extensors at 1.05 rad · s −1 by 14.8% and the dynamic conventional ratio by 13.8% in the non-dominant leg. However, both studies (Brito et al, 2010;Daneshjoo et al, 2012) were not experimental (one-group, pre-post design) and the power significance of their results appears questionable. Moreover, to the best of our knowledge, no well-designed and controlled studies have previously examined the influences on football players' strength asymmetries and imbalances induced by core stability training programmes.…”

“…Since the main purpose of core stability training is injury prevention, the knowledge of training effects elicited by these programmes can help in identifying the potential mechanisms behind the reported reduction in injury incidence. Previous studies have described the training adaptations in lower limbs strength related to core stability training programmes (Brito et al, 2010;Daneshjoo, Rahnama, Mokhtar, & Yusof, 2013). Daneshjoo et al (2012) showed that the core stability programme FIFA 11+ was effective in improving both concentric and eccentric quadriceps and hamstring strength in young male professional football players.…”

Physiological and performance responses to the FIFA 11+ (part 2): a randomised controlled trial on the training effects

“…Two studies have examined the effects of "The 11" on strength, sprint speed, jumping ability, agility and core stability with contrasting results (Kilding, Tunstall, & Kuzmic, 2008;Steffen, Bakka, Myklebust, & Bahr, 2008). Only one recent study has described the changes in strength induced by the "FIFA 11+" (Brito et al, 2010). However, this study was not experimental (one-group, pre-post design).…”