The Effect of Eight Weeks of Dynamic Neuromuscular Stabilization (DNS) exercises on a Trampoline on Respiratory Function in Individuals with Intellectual Disabilities

Document Type : Original article

Authors

1 Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, University of Isfahan, Isfahan, Iran.

2 Assisstant professor

3 Professor, University of Isfahan

10.22037/sjrm.2026.117572.3458

Abstract

English Abstract

Background and Aims: Special attention to vulnerable populations, including individuals with intellectual disabilities, is essential due to their increased risk of cardiovascular and respiratory disorders. In addition to cognitive limitations, these individuals often experience multiple physical impairments that require targeted and structured interventions. Therefore, the present study aimed to investigate the effects of dynamic neuromuscular stabilization (DNS) exercises performed on a trampoline on respiratory function in individuals with intellectual disabilities, and to propose an effective approach for improving physical capacity and enhancing their quality of life.

Materials and Methods: This quasi-experimental study was conducted on 30 individuals with intellectual disabilities (age: 29.96±4.30years; height: 156.84±6.26cm; weight: 60.87±6.72kg; IQ: 64.09±5.47). Participants were selected through convenience sampling and were randomly assigned to either a trampoline exercise group or a ground-based exercise group. The intervention lasted eight weeks and consisted of three 45-minute sessions per week. Respiratory function was assessed using spirometry. Data were analyzed using repeated-measures analysis of variance, with statistical significance set at p ≤ 0.05.

Results: After eight weeks, both groups showed significant improvements in Forced Expiratory Volume in One second (FEV1), Forced Vital Capacity (FVC), and the FEV1/FVC ratio (p ≤ 0.05); however, the improvements were significantly greater in the trampoline group compared to the ground group.

Conclusion: Dynamic neuromuscular stabilization exercises, whether performed on a trampoline or on the ground, led to significant improvements in respiratory function, although the magnitude of the effects differed between groups. Trampoline based DNS training appears to be a promising method for improving respiratory function in individuals with intellectual disability; however, confirmation requires further studies with larger sample sizes and follow up periods.

Keywords: Intellectual disability, respiratory function, dynamic neuromuscular stabilization (DNS), trampoline.

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The Scientific Journal of Rehabilitation Medicine

Articles in Press, Accepted Manuscript
Available Online from 09 June 2026

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History

  • Receive Date: 01 May 2026
  • Revise Date: 18 May 2026
  • Accept Date: 09 June 2026
  • First Publish Date: 09 June 2026

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