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J Sports Sci. 2016;34(7):671-8. doi: 10.1080/02640414.2015.1068437. Epub 2015 Jul 15.

Core stability training on lower limb balance strength.

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a Zinman College of Physical Education and Sport Sciences, Wingate Institute , Israel.
b University e-Campus , Novedrate , Italy.
c Tunisian Research Laboratory "Sports Performance Optimization", National Center of Medicine and Science in Sports , Tunis , Tunisia.


This study aimed to assess the effects of core stability training on lower limbs' muscular asymmetries and imbalances in team sport. Twenty footballers were divided into two groups, either core stability or control group. Before each daily practice, core stability group (n = 10) performed a core stability training programme, while control group (n = 10) did a standard warm-up. The effects of the core stability training programme were assessed by performing isokinetic tests and single-leg countermovement jumps. Significant improvement was found for knee extensors peak torque at 3.14 rad · s(-1) (14%; P < 0.05), knee flexors peak torque at 1.05 and 3.14 rad · s(-1) (19% and 22% with P < 0.01 and P < 0.01, respectively) and peak torque flexors/extensors ratios at 1.05 and 3.14 rad · s(-1) (7.7% and 8.5% with P < 0.05 and P < 0.05, respectively) only in the core stability group. The jump tests showed a significant reduction in the strength asymmetries in core stability group (-71.4%; P = 0.02) while a concurrent increase was seen in the control group (33.3%; P < 0.05). This study provides practical evidence in combining core exercises for optimal lower limbs strength balance development in young soccer players.


Ecological validity; injury; isokinetic test; jump performance; motor control; muscle strength; team sport

[Indexed for MEDLINE]

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