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Taking people in United StatesNo phase

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

Key facts

Who runs it
Spaulding Rehabilitation Hospital
Where
Cambridge, United StatesSee the site
Trial code
Status
Recruiting
People taking part
44 people, planned
Started
Oct 2014
Expected to end
Nov 2027
Type of study
Interventional, 2 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • AIH
  • Walk
  • Strength
Record updated
20 March 2026

Who can take part

Age
18 years to 75 years
Sex
Women and men
Healthy volunteers
Can take part

The registry criteria, word for word

Show all 12 criteriaShow less

Who can take part

  • Age 18 and 75 years (the latter to reduce likelihood of heart disease)
  • Medical clearance to participate
  • Lesion at or below C2 and above T12 with non-progressive etiology
  • Classified as motor-incomplete with visible volitional leg movement
  • Injury greater than 1 year

Who cannot take part

  • Concurrent severe medical illness (i.e., infection, cardiovascular disease, ossification, recurrent autonomic dysreflexia, unhealed decubiti, and history of pulmonary complications)
  • Undergoing concurrent physical therapy
  • History of seizures, brain injury, and/or epilepsy
  • Diabetes
  • Caffeine and/or NSAID allergies or intolerances
  • Pregnant women because of the unknown affects of AIH on pregnant women and fetus
  • Cirrhosis

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 75 years old?

Where in United States

  • Spaulding Rehabilitation HospitalCambridge, United StatesContact: Randy D Trumbower, PT, PhDTaking people

About the trial

What the trial wants to find out

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.

The 2 groups in the trial

  • AIH/WalkExisting treatment, for comparison

    Subjects with chronic, motor-incomplete SCI receive acute intermittent hypoxia (AIH) with walking practice, then AIH with strength practice and compare their efficacy on enhancing strength and/or walking performance.

    Treatment: AIH and Walk

  • AIH/StrengthExisting treatment, for comparison

    Subjects with chronic, motor-incomplete SCI receive AIH with strength practice, then AIH with walking practice and compare their efficacy on enhancing strength and/or walking performance.

    Treatment: AIH and Strength

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Mechanisms of Intermittent Hypoxia-induced Motor Recovery in Persons With SCI
Fit questions
Built from NCT02323945, who can take part
Record updated
20 March 2026