Gait Trainer™ 3

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What do you have when you combine the Gait Trainer 3 with Unweighing System?


Gait Trainer 3  

Unweighing System

Gait Training System
Gait Trainer 3
  Unweighing    Biodex Gait Training System 


The Biodex Gait Training SystemMost inpatient and outpatient PT facilities first encounter a patient with Parkinson’s disease only after a series of falls – often with serious physical and emotional consequences. Despite its resemblance to an ordinary treadmill, the Biodex Gait Trainer 3 differs in ways that illustrate its specialized rehabilitation design for neurologically impaired patients including an instrumented deck that yields audio & visual biofeedback and objective documentation.

Protas and colleagues at University of Texas, Galveston, initiated a randomized, controlled trial to assess the benefit of gait and step perturbation training. Subjects were randomly assigned to a trained or control group, and polled for any falls 2 weeks prior to and 8 weeks after the gait training period. Gait speed, cadence, and step length were tested on an instrumented walkway. Gait training consisted of walking on a treadmill at a speed greater than over ground walking speed while supported in a harness for safety.


  • Gait speed increased in the trained group from 1.28 ± 0.33 meters/sec to 1.45 ± 0.37 meters/sec, but not in the control group (from 1.26 to 1.27 m/s).
  • Stride lengths increased for the trained group, but not the control group.

Body weight support treadmill training (BWSTT) has demonstrated of benefit in many studies of Parkinson’s disease patients, some of the earliest by Miyai and colleagues.i The Osaka team found BWSTT patients had significantly greater improvement in ambulation speed, number of steps and performance in activities of daily living than an age- and diseasestage matched individuals receiving conventional physical therapy.

i Miyai, I (2000), Treadmill Training with Body Weight Support: Its Effect on Parkinson’s Disease, Arch Phys Med Rehabil Vol 81, pp 849-852.

Treadmill Training

“One example of neural plasticity is the improvement seen in locomotion of patients with stroke or spinal cord injury through partial body weight supported treadmill training. This rapidly developing form of therapy is based on two fundamental observations. First, that the spinal cord of all vertebrates, including man, contains neuronal circuitry that encoded the locomotor pattern, and which can be activated by stimulation at supraspinal, suprasegmental, or segmental levels or even by intrathecal drug administration. The activation of locomotor circuitry does not therefore require momentto-moment control of individual muscles by the brain. The second observation was that repeated activation of the central pattern generating circuit by treadmill training could result in long lasting enhancement of locomotor output. In human trials, this resulted in improved locomotion months and even years after training was discontinued.”

Excerpt from: The Role of Neural Plasticity in Neurorehabilitation
Michael E. Selzer, MD, PhD., Associate Dean of Graduate Education
University of Pennsylvania Medical College, USA


VA Hospital Study* Supports the Concept of the Biodex Unweighing System
“If the system does not allow for vertical movements, gait is markedly distorted. The subject may still be able to move on the treadmill, since the walking surface is moving below him, but this unnatural gait is not the goal of therapy.”


  • Support up to 40% of patient’s body weight
  • Allow for 5.5 cm of vertical movement to permit normal gait
  • Report reliably to ensure the correct degree of unloading
  • Enable easy adjustment to the amount of body weight support as the subject improves or fatigues during a training exercise

* VA Hospital Study: Source: Wilson M, Qureshy H, Protas E, Holmes A, Krouskop T, Sherwood A.: Equipment Specifications for Supported Treadmill Ambulation Training, J of Rehab, Rehab and Development


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Balance & Mobility

Related Biodex Programs
What They Are Saying
Dosher Memorial Hospital
Director of Physical Therapy
Eugene DesLaurier, MPT

“We find the Biodex Gait Trainer to be terrific for working with very deconditioned individuals including orthopedic, neurologic, older adult, stroke, spinal cord and head injury patients."