Effects of Breathing Mild Bouts of Low Oxygen on Limb Mobility After Spinal Injury

NCT02323945 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 44

Last updated 2026-03-20

No results posted yet for this study

Summary

Accumulating evidence suggests that repeatedly breathing low oxygen levels for brief periods (termed intermittent hypoxia) is a safe and effective treatment strategy to promote meaningful functional recovery in persons with chronic spinal cord injury (SCI). The goal of the study is to understand the mechanisms by which intermittent hypoxia enhances motor function and spinal plasticity (ability of the nervous system to strengthen neural pathways based on new experiences) following SCI.

Conditions

  • Spinal Cord Injuries

Interventions

OTHER

AIH

Participants will breathe intermittent low oxygen via air generators. The generators will fill reservoir bags attached to a non-rebreathing face mask. Oxygen concentration will be continuously monitored to ensure delivery of fraction of inspired oxygen (FiO2) = 0.10±0.02 (hypoxia). Participants will receive treatment on 5 consecutive days.

OTHER

Walk

30 minutes of walking practice consisting of 5 repetitions of 6-minute walks

OTHER

Strength

30 minutes of isometric ankle plantar flexion torque practice broken into 3 sets of 10 repetitions

Sponsors & Collaborators

  • Foundation Wings For Life

    collaborator OTHER
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

    collaborator NIH
  • Spaulding Rehabilitation Hospital

    lead OTHER

Principal Investigators

  • Randy D Trumbower, PT, PhD · Harvard Medical School (HMS and HSDM)

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2014-10-31
Primary Completion
2027-08-31
Completion
2027-11-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02323945 on ClinicalTrials.gov