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Background <p>Increased thoracic kyphosis (TK) in adolescence can negatively affect posture, balance, and quality of life (QoL). While conventional corrective exercises (CE) are commonly used, Dynamic Neuromuscular Stabilization (DNS), based on developmental kinesiology, has shown potential as a targeted intervention. This study aims to compare the effects of DNS and conventional CE on TK angle, dynamic balance, and QoL in adolescent boys with increased TK.</p> Methods <p>In this single-blind randomized controlled trial, 60 male adolescents aged 14–16 years with increased TK were randomly assigned to three groups: DNS, conventional CE, or control. The DNS and CE group completed six sessions per week (three supervised and three home-based) for 8 weeks and control group continues their normal life. TK angle was measured using a Spinal Mouse device, dynamic balance was assessed with the Y-Balance Test, and QoL was evaluated using the SF-36 questionnaire. </p> Results <p>Analysis revealed that both the DNS and conventional exercise (CE) groups showed statistically significant improvements in all measured outcomes, including thoracic kyphosis (TK) angle, dynamic balance, and quality of life (QoL) compared to the control group (p &lt; 0.05). Furthermore, while the DNS group demonstrated significantly greater improvements than the CE group in TK angle and dynamic balance (p &lt; 0.05), the difference in QoL between the two intervention groups was not statistically significant.</p> Conclusion <p>DNS exercises were more effective than conventional CE in improving posture, balance, and QoL in adolescents with increased TK.</p> Trial registration <p>This trial was registered in the Iranian Registry of Clinical Trials (IRCT) under the registration code IRCT20240907062968N5. Registration Date: 13/05/2025.</p>

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Dynamic neuromuscular stabilization versus traditional training: a randomized controlled trial comparing their effects on balance, posture, and quality of life in adolescents with increased thoracic kyphosis

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  • 发表日期：

    2026年2月2日

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  • Vahid Mazloum,
  • Ali Honarvar,
  • Zahra Jabarpour,
  • Masoume Matin

摘要

Background

Increased thoracic kyphosis (TK) in adolescence can negatively affect posture, balance, and quality of life (QoL). While conventional corrective exercises (CE) are commonly used, Dynamic Neuromuscular Stabilization (DNS), based on developmental kinesiology, has shown potential as a targeted intervention. This study aims to compare the effects of DNS and conventional CE on TK angle, dynamic balance, and QoL in adolescent boys with increased TK.

Methods

In this single-blind randomized controlled trial, 60 male adolescents aged 14–16 years with increased TK were randomly assigned to three groups: DNS, conventional CE, or control. The DNS and CE group completed six sessions per week (three supervised and three home-based) for 8 weeks and control group continues their normal life. TK angle was measured using a Spinal Mouse device, dynamic balance was assessed with the Y-Balance Test, and QoL was evaluated using the SF-36 questionnaire.

Results

Analysis revealed that both the DNS and conventional exercise (CE) groups showed statistically significant improvements in all measured outcomes, including thoracic kyphosis (TK) angle, dynamic balance, and quality of life (QoL) compared to the control group (p < 0.05). Furthermore, while the DNS group demonstrated significantly greater improvements than the CE group in TK angle and dynamic balance (p < 0.05), the difference in QoL between the two intervention groups was not statistically significant.

Conclusion

DNS exercises were more effective than conventional CE in improving posture, balance, and QoL in adolescents with increased TK.

Trial registration

This trial was registered in the Iranian Registry of Clinical Trials (IRCT) under the registration code IRCT20240907062968N5. Registration Date: 13/05/2025.