Effect of Core Stability Training on Balance and Physical Performance in Football Players

Abstract

Background: Core stability is theorised to underpin lumbopelvic control, postural stability and efficient force transfer along the kinetic chain during football-specific movement. However, most primary studies have measured either balance or physical performance in isolation, and few have assessed both concurrently within a single cohort of adult football players, leaving the assumed mechanistic link between proximal neuromuscular control and downstream athletic performance insufficiently tested.

Objectives: To determine the effect of an eight-week structured core stability training programme, added to standard football training, on static balance, dynamic balance and selected physical performance parameters in football players, and to compare the magnitude of change against standard football training alone.

Methods: A two-arm, parallel-group, assessor-blinded randomized controlled trial was conducted in 60 football players aged 18–26 years competing at college/university, district or state level. Participants were randomly allocated 1:1 using a computer-generated sequence with sequentially numbered, opaque, sealed envelopes to an Experimental group (n = 30; progressive core stability training, three supervised sessions per week for eight weeks, in addition to standard football training) or a Control group (n = 30; standard football training alone). The primary outcome was dynamic balance (Y Balance Test composite reach score, %). Secondary outcomes were static balance (Single-Leg Stance Test, eyes closed), countermovement vertical jump height, 20-metre sprint time and 505 change-of-direction time, assessed at baseline and at week 8. Within-group change was analysed using the paired t-test, between-group difference in mean change using the independent-samples t-test, and effect size using Cohen’s d, with significance set at p < 0.05.

Results: All 60 participants completed the trial with no loss to follow-up; mean adherence in the Experimental group was 92.2 ± 4.7%. Both groups improved significantly on all five outcomes (p < 0.001). Between-group differences in mean improvement favoured the Experimental group throughout: Y Balance Test composite score 4.28% (6.09 ± 1.47 versus 1.81 ± 1.44; d = 2.94), static balance 0.57 s (d = 2.86), vertical jump 1.82 cm (d = 2.21), 20-metre sprint 0.09 s (d = 3.19) and 505 change-of-direction time 0.13 s (d = 2.56), all p < 0.001.

Conclusion: An eight-week structured, criterion-progressed core stability programme delivered as an adjunct to standard football training produced significantly greater improvement in static balance, dynamic balance, vertical jump, linear sprint and change-of-direction performance than standard football training alone. The consistency of benefit across all five outcome domains supports core stability training as a time-efficient supplement to, rather than a replacement for, conventional football conditioning. Injury incidence was not measured, so no inference regarding injury prevention can be drawn.