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  4. Effect of repeated locomotor training on ventilatory measures, perceived exertion and walking endurance in persons with motor incomplete spinal cord injury

Effect of repeated locomotor training on ventilatory measures, perceived exertion and walking endurance in persons with motor incomplete spinal cord injury

Spinal Cord Series and Cases, 2020 · DOI: https://doi.org/10.1038/s41394-020-00346-6 · Published: September 23, 2020

Spinal Cord InjuryPulmonologyRehabilitation

Simple Explanation

This study investigates how locomotor training affects breathing patterns, effort perception, and walking ability in people with incomplete spinal cord injuries. It explores if a warm-up helps breathing adjust to exercise and how overground locomotor training changes breathing, perceived exertion, and walking endurance over time. The research looks at the connection between breathing variability, how hard someone feels they're working, and how long they can walk. The study found that a warm-up can help breathing adjust to exercise, and locomotor training improves breathing patterns and walking endurance. The findings suggest that changes in breathing variability are linked to perceived exertion, highlighting potential therapeutic targets for improving walking ability in individuals with incomplete spinal cord injuries.

Study Duration
24 weeks
Participants
8 participants with motor incomplete spinal cord injury
Evidence Level
Pre-Post, Repeated Measures

Key Findings

  • 1
    A warm-up bout of exercise can elicit a phasic ventilatory response to constant work rate exercise in individuals with incomplete spinal cord injury.
  • 2
    Overground locomotor training (OLT) normalizes the ventilatory kinetics and improves walking endurance in SCI patients.
  • 3
    The change in minute ventilation variability is correlated to ratings of perceived exertion (RPE).

Research Summary

The study aimed to determine if a warm-up could elicit a phasic ventilatory response during treadmill walking in individuals with iSCI and to describe changes in ventilatory kinetics, variability, and RPE after 12 and 24 weeks of OLT. Results showed a warm-up elicited a phasic ventilatory response, OLT resulted in faster ventilatory kinetics, and ventilatory variability reduced after 12 weeks but returned to pre-OLT values after 24 weeks. Improvements in treadmill walking time were also observed. The conclusions suggest that SCI patients can achieve a phasic ventilatory response with a warm-up, OLT normalizes ventilatory kinetics and improves walking endurance, and the change in VE variability is correlated to RPE.

Practical Implications

Warm-up Importance

Incorporating a warm-up before exercise for individuals with iSCI to improve ventilatory response.

Locomotor Training Benefits

Utilizing overground locomotor training to enhance ventilatory kinetics and walking endurance in SCI patients.

RPE Monitoring

Monitoring ventilatory variability and its correlation with RPE to guide therapeutic interventions and improve walking ability.

Study Limitations

  • 1
    Small sample size
  • 2
    Methodological issues with kinetic equation fitting
  • 3
    Changes in exercise intensity affecting ventilatory kinetics

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