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Objective <p>To evaluate the effects of 8-week integrated neuromuscular training (INT) and traditional physical training on correcting lower limb functional asymmetry and improving balance ability in military personnel.</p> Methods <p>Twenty military academy cadets were randomly assigned to the INT group (<i>n</i> = 10) or the traditional physical training group (<i>n</i> = 10). The intervention lasted for 8 weeks, with 3 sessions per week, each lasting 70–90&#xa0;min. Lower limb asymmetry index was calculated through single-leg vertical jump, forward jump, and lateral jump tests, and balance ability was assessed using the Y-balance test at three time points: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.</p> Results <p>There were no significant differences in baseline data between the two groups (<i>p</i> &gt; 0.05). Repeated measures analysis of variance showed a significant interaction effect (<i>p</i> &lt; 0.05). After 8 weeks of intervention, the vertical jump asymmetry index in the INT group significantly decreased from 6.47 ± 1.46 to 4.22 ± 1.93 (ANCOVA, <i>P</i> = 0.01), the forward jump asymmetry index decreased from 4.68 ± 2.12 to 1.67 ± 0.88 (Holm-corrected repeated-measures ANOVA interaction, <i>P</i> = 0.006), and the lateral jump asymmetry index decreased from 5.14 ± 2.20 to 2.01 ± 1.10 (Holm-corrected repeated-measures ANOVA interaction, <i>P</i> = 0.045), while there was no significant improvement in any of the asymmetry indices in the traditional physical training group (<i>p</i> &gt; 0.05). In terms of balance ability, the composite score of the INT group increased from 96.91 ± 5.89 to 101.55 ± 5.55 (Holm-corrected repeated-measures ANOVA interaction, <i>P</i> &lt; 0.01), which was significantly higher than that of the traditional physical training group (98.83 ± 3.85 after 8 weeks, ANCOVA, <i>P</i> = 0.02). No adverse events occurred in any of the tests.</p> Conclusion <p>Eight weeks of integrated neuromuscular training can effectively improve lower limb functional asymmetry and significantly enhance balance ability in military personnel. This training program can be used as an evidence-based intervention for military physical training and is conducive to reducing the risk of training injuries caused by asymmetry.</p> Trial registration <p>NCT06663371, <b>Registration Date</b>: 22/10/2024.</p>

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Effects of an 8-week integrated neuromuscular training on lower limb functional asymmetry and balance in military personnel: a randomized controlled trial

  • 期刊论文

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  • 发表日期：

    2026年5月23日

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  • Yu Jiang,
  • Panfeng Liu,
  • Zhou Xiao,
  • Jian Kang,
  • Nanjun Chen,
  • Zhikang Cheng,
  • Xu Xiang,
  • Ziao Li,
  • Jiexing Yan

摘要

Objective

To evaluate the effects of 8-week integrated neuromuscular training (INT) and traditional physical training on correcting lower limb functional asymmetry and improving balance ability in military personnel.

Methods

Twenty military academy cadets were randomly assigned to the INT group (n = 10) or the traditional physical training group (n = 10). The intervention lasted for 8 weeks, with 3 sessions per week, each lasting 70–90 min. Lower limb asymmetry index was calculated through single-leg vertical jump, forward jump, and lateral jump tests, and balance ability was assessed using the Y-balance test at three time points: before the intervention, after 4 weeks of intervention, and after 8 weeks of intervention.

Results

There were no significant differences in baseline data between the two groups (p > 0.05). Repeated measures analysis of variance showed a significant interaction effect (p < 0.05). After 8 weeks of intervention, the vertical jump asymmetry index in the INT group significantly decreased from 6.47 ± 1.46 to 4.22 ± 1.93 (ANCOVA, P = 0.01), the forward jump asymmetry index decreased from 4.68 ± 2.12 to 1.67 ± 0.88 (Holm-corrected repeated-measures ANOVA interaction, P = 0.006), and the lateral jump asymmetry index decreased from 5.14 ± 2.20 to 2.01 ± 1.10 (Holm-corrected repeated-measures ANOVA interaction, P = 0.045), while there was no significant improvement in any of the asymmetry indices in the traditional physical training group (p > 0.05). In terms of balance ability, the composite score of the INT group increased from 96.91 ± 5.89 to 101.55 ± 5.55 (Holm-corrected repeated-measures ANOVA interaction, P < 0.01), which was significantly higher than that of the traditional physical training group (98.83 ± 3.85 after 8 weeks, ANCOVA, P = 0.02). No adverse events occurred in any of the tests.

Conclusion

Eight weeks of integrated neuromuscular training can effectively improve lower limb functional asymmetry and significantly enhance balance ability in military personnel. This training program can be used as an evidence-based intervention for military physical training and is conducive to reducing the risk of training injuries caused by asymmetry.

Trial registration

NCT06663371, Registration Date: 22/10/2024.