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Advisor(s)
Abstract(s)
: Chronic ankle instability (CAI) has a higher frequency in soccer due to the rapid changes
in body movement. Thus, this study compared the effects of eight weeks of a hopping protocol
and a combined protocol of balance plus strength in a within-between group analysis. Thirty-six
male professional soccer players participated in this study and were randomly allocated in three
groups: control group (CG, n = 12), hopping group (HG, n = 12), and balance plus strength group
(BSG, n = 12). Strength, static and dynamic balance, and function were assessed at baseline and eight
weeks post intervention. First, Foot and Ankle Ability Measure (FAAM) and FAAM sport scales were
applied. Then, a dynamometer was used to measure strength of the muscles around the hip, knee,
and ankle joints. The Bass stick measured static balance and the Y balance test measured dynamic
balance. Additionally, functional tests were carried out by Triple Hop, the Figure 8 hop, and vertical
jump. A repeated measures ANOVA [(3 groups) × 2 moments] was used to compare the within
and between group differences. In general, all tests improved after eight weeks of training with
both protocols. Specifically, the BSG improved with large ES for all tests, while the HG improved all
test with small to large effect sizes (ES). Furthermore, HG showed higher values for vertical jump
(p < 0.01, ES = 1.88) and FAAMSPORT (p < 0.05, ES = 0.15) than BSG. BSG showed higher values for
hip abduction (p < 0.05, ES = 2.77), hip adduction (p < 0.05, ES = 0.87), and ankle inversion (p < 0.001,
ES = 1.50) strength tests, while HG showed higher values for knee flexion [ES = 0.86, (0.02, 1.69)] and
ankle plantarflexion [ES = 0.52, (−0.29, 1.33)]. Balance plus strength protocol showed more positive
effects than the hopping protocol alone for soccer players with CAI.
Description
Keywords
dynamic balance isometric jump stability static balance
Citation
Mohammadi Nia Samakosh, H.; Brito, J.P.; Shojaedin, S.S.; Hadadnezhad, M.; Oliveira, R. (2022). What does provide better effects on balance, strength, and lower extremity muscle function in professional male soccer players with chronic ankle instability? hopping or a balance plus strength intervention? a randomized control study. Healthcare, 10, 1822. https://doi.org/10.3390/ healthcare10101822
Publisher
MDPI