New NxStep™ Unweighing System

NEW NxStep™ Unweighing System
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NEW NxStep™ Unweighing System
NEW NxStep™ Unweighing System
NEW NxStep™ Unweighing System
NEW NxStep™ Unweighing System
 
Biodex NxStep Unweighing System shown with the Standard Unweighing Harness and two Therapist Seats. Second seat sold separately.
 
OverviewFeaturesApplicationsTechnologySpecificationsManualsModels & Ordering

Overview

Early rehabilitation, BWSTT or over ground…


Restore functional mobility
Biodex Floor Planner Software
The Biodex NxStep™ Unweighing System enables partial weight-bearing therapy with open access to the patient. Offloading a percentage of body weight enables the opportunity for early rehabilitation while providing a safe environment for patient and therapist. Therapists can focus on treating their patients, manually facilitating lower extremities.

The dynamic, single-point suspension of NxStep accommodates pelvic rotation and vertical displacement. This encouragement of proper mechanics allows functional gait patterns to be practiced. When used in combination with the Biodex Gait Trainer, a comprehensive gait training environment complete with audio and visual biofeedback, is possible.

Gait Kinematics  

NxStep™ Unweighing System allows full and partial weight bearing without compromising proper gait kinematics. Depending on walking speed, up to four inches of vertical displacement is permitted while the system maintains a consistent level of unweighing. When pelvic stabilization is necessary, retention cords are provided that can be adjusted for degree of pelvic rotation.

Safe Patient Handling and MobilityThe ability to allow pelvic rotation has its own advantages. Unlike two-point suspension systems that have a tendency to restrict rotation on a horizontal plane, the single-point method of NxStep permits functional pelvic rotation and versatility when walking, side-stepping, retro-walking and turning. Patients can engage in reactive postural control exercises or change direction without repositioning the entire support system.

The unique, forward corner-mounted design of NxStep enables many advantages. Therapists can view patients from all angles; patients have full visibility of treadmill display and, the open design allows natural arm swing, an essential component to encourage neuroplasticity.

New NxStep Unweighing System


Gait Training SystemGAIT TRAINER 3 + UNWEIGHING
The Biodex Gait Training System

The Gait Trainer provides audio and visual biofeedback of step length and step speed. The Unweighing Support System provides assistance, helping patients regain their confidence, their strength and their stride. The Unweighing System, combined with the Gait Trainer 3 allows every patient the opportunity to get an early start on rehabilitation.

Features

Allows for functional vertical displacement and functional pelvic rotation or stabilization during partial weight-bearing therapy

  • Full Patient Access – open frame design encourages therapist facilitation and clears an unobstructed forward view for patients.
  • One-Handed Control – press a button to raise or lower patient; another to set unweighing load.
  • Counters Harness Slippage – Auto Unload feature compensates for potential harness movement due to slippage or posture changes.
  • Convenient Control – newly designed hand-held remote can be magnetically attached anywhere on the frame.
  • Safe Environment – dynamic, single-point suspension is safer for patients and negates the need for therapist support and risk of personal injury.
  • Pelvic Stabilization – possible as single- or two-point stabilization with retention cords.
  • Tall and Small – from pediatric up to 6' 7" on a standard treadmill in an area with 8' ceilings or up to 7' 2" over ground. 
  • Get Comfortable – therapist seat can easily be moved along the base of the frame or from side-to-side. A second seat is available separately.
  • Handrails As Needed – easily removable for specific balance training exercise.
  • Room-to-Room – collapses to 32" (81 cm) wide to fit through standard door frames.

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.”


Specific Recommendations:

- 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, Vol. 37 No. 4, July/August 2000, pp 415-422 


New Standard Unweighing Harness
New NxStep Unweighing System
The question isn’t whether to offload a patient’s weight, but how. What factors to consider should be textbook, allowing the biomechanics of gait without impeding movement.

The Biodex Unweighing Harness is designed to provide vertical lift through three shared points of pressure: through the hip straps, gluteal fold straps and the lumbar-thoracic harness. Its secure fit with maximum support offers comfort without limiting lower extremity range of motion. Assuring that the patient is comfortable is essential when lengthy exercise sessions are required.

The NxStep Unweighing System allows the necessary movements to replicate natural ambulation – uniquely offered with Biodex design.

The new Auto Unload feature compensates for any harness slippage, maintaining unloaded amount and position throughout the exercise.

Take it a step further and partner the NxStep Unweighing System with the Biodex Gait Trainer. This combination provides the safety to treat people with movement disorders, and the biofeedback technology with objective reporting to prove need, progress and outcome.


Applications

  • Stroke
  • Spinal Cord
  • Head Injury
  • Amputees
  • Orthopedic
  • Neurologic
  • Vestibular
  • Older Adult 


Spinal Cord Injury

Goal:
To reduce spasticity and regain functional gait through partial weight-bearing therapy.

Method:
Initial unweighing support up to 40% of body weight. As the patient begins to demonstrate step symmetry, body weight support can be decreased. When used with a Treadmill or Biodex Gait Trainer, and support is decreased to 20% of body weight, treadmill belt speed can be increased to develop functional step length and step speed.

Results and Benefits:

Rehabilitation can begin within the first 1-3 months following onset when there is the most plasticity of the Central Nervous System and greater potential for recovery. Improved gait is achieved in an upright and fully supported position through the repetitive and rhythmic movements of the Treadmill or Biodex Gait Trainer. Effective, efficient and safe use of clinician time. Allows concentration on treatment, not physically supporting the patient. When used with a Treadmill or Biodex Gait Trainer:
Better recovery of ambulation with effects transferred to improved over ground walking speed, endurance, and
physical assistance required to walk.

Reference:
- Barbeau et al., Walking After Spinal Cord Injury: Control and Recovery
- Gardner et al., Partial Body Weight Support With Treadmill Locomotion
- Visintin et al., A New Approach To Retrain Gait In Stroke Patients Through Body Weight Support and Treadmill Stimulation 


Stroke / Traumatic Brain Injury

Goal:
To regain functional gait through partial weight-bearing therapy.

Method:
Initial unweighing support, up to 40% of body weight. As the patient begins to demonstrate step symmetry body weight support can be decreased. When used with a Treadmill or Biodex Gait Trainer and support is decreased to20% of body weight, treadmill belt speed can be increased to develop cadence.

Results and Benefits:

Rehabilitation can begin within the first 1-3 months following onset when there is the most plasticity of the Central Nervous System and greater potential for recovery.Improved step length symmetry and increased cadence during ambulation is achieved in an upright and fully supported position through the repetitive and rhythmic movements of the Treadmill or Biodex Gait Trainer.Effective, efficient and safe use of clinician time. Allows concentration on treatment, not physically supporting the patient.

When used with a Treadmill or Biodex Gait Trainer:
Better recovery of ambulation with effects transferred to improved over ground walking speed, endurance, and
physical assistance required to walk.

Reference:
- Visintin et al.: A New Approach To Retrain Gait In Stroke Patients Through Body Weight Support and Treadmill Stimulation 


Parkinson's Disease

Goal:
To regain functional gait through partial weight-bearing therapy.

Method:
Initial unweighing support is up to 40% of body weight. Once supported, the patient can perform balance and gait training exercises, such as weight shifts. When used with the Biodex Gait Trainer, audio and visual cues are used to assist retraining of the temporal and spatial deficits associated with Parkinsonian Gait.

Results and Benefits:

Improvement of stride length.Maintain/Improve cardiopulmonary endurance.Effective, efficient and safe use of clinician time. Allows concentration on treatment, not physically supporting the patient.

Reference:
- Morris, ME, et al., Stride Length Regulation In Parkinson's Disease Normalization Strategies and Underlying Mechanisms.
Brain, 119:551-568, 1996.


Low Back Patients

Goal:
To regain pelvic rotation and provide vertical traction in conjunction with exercise.

Method:
When used with a treadmill inclined to 3% grade, the Unweighing System will provide vertical traction. The inclined treadmill brings the pelvis into an anteriorly tilted position allowing the intervertebral foramen to open up and reduce the compression on the associated nerve(s). Once supported, the patient can perform gait and balance exercises.

Results and Benefits:

Reduction of compression on the peripheral nerves.Improved tolerance for exercise.Ability to exercise longer on a treadmill, providing increased core stabilization and endurance of postural muscles.

Reference:
- Simpson, S, et al. Unloaded Treadmill Therapy for lumbar disc herniation injury 


Older Adult

Goal:
To regain functional gait through partial weight-bearing therapy.

Method:
Support patient in the Biodex Unweighing System. Once supported, the patient can perform gait and balance exercises.

Results and Benefits:

Improved confidence.Improved tolerance for exercise.Transfer of training benefits to activities of daily living.Maintain or regain independence. 


Amputation of the Lower Extremity

Goal:
To regain functional gait through partial weight-bearing therapy.

Method:
Initial unweighing support is up to 30% of body weight. Once supported,the patient can perform early weight shifts. As patient starts gait training, the clinician assists with foot placement.

Results and Benefits:

Reduction of pain.Stump toughening begins earlier and in a more gradual manner.Cardiac and metabolic demands are reduced.Effective, efficient and safe use of clinician time. Allows concentration on treatment, not physically supporting the patient.

Reference:
- Peterson, et al. "Physiological Responses During Unweighted Ambulation Of Three Patients With Below The Knee Amputation".
A pilot study.


Orthopedic Patients

Goal:
To develop proprioception and weight-bearing acceptance following joint injury, surgical repairs or replacements through partial weight-bearing therapy.

Method:
Initial unweighing support is up to 40% of body weight. Once supported, the patient can perform balance and gait training exercises, such as weight shifts. Reduce body weight support as patient regains range of motion and begin mini-squats and other weight bearing activities.

Results and Benefits:

Rehabilitation can begin earlier.Improve proprioception and acceptance for weight bearing activities.

Reference:
- Mulcare, JA, et al. Physiological responses during unweighing ambulation: A pilot study. 

 

 

Technology

Simple Operation

NxStep Unweighing System Technology
Select the amount of weight to offload the patient. Hand-Held Controller Raise overhead bar in Load Range until indicator is in the green zone.

Specifications

  • Dimensions:
    Operational:
    - I.D.: 38.8" w x 48" depth x 94" h (99 x 122 x 239 cm)
    - O.D.: 47.5" w x 48" depth x 94" h (121 x 122 x 239 cm)
    Retracted (not for operation)
    - O.D.: 32" w x 48" depth x 79" h (81 x 122 x 201 cm) will fit through a standard 36" x 80" door.
    - Battery adds 4" (10.2 cm) to depth.
  • Accommodates patients from pediatric up to 6' 7" (201 cm) on a standard treadmill in an area with 8' (244 cm) ceilings
  • Includes one therapist seat
  • Accommodates Treadmill up to 38" w x 13.5" h (97 x 34 cm)
  • Vertical Adjustment: 50" (127 cm)
  • Unloading Weight Capacity: 160 lb (73 kg)
  • User Capacity: 400 lb (181 kg)
  • Power: 115 VAC
  • Battery: Rechargeable 24V. Battery automatically charges when system is plugged in.
  • Weight: 275 lb (125 kg)
  • Shipping Weight: 415 lb (189 kg)
  • Compliance: IEC 60601-1 and ISO 10535 for safety; EMC to 60601-1-2.
  • CE conformity to IEC 60601-1
  • Warranty: Two years parts; one year labor


 

 

 

 

Manuals

Models & Ordering

To order, call 1-800-224-6339

950-485

NxStep Unweighing System, 115 VAC
Includes: Standard unweighing harness, one therapist seat, a set of pelvic stabilization retention cords and an Allen wrench.

U.S. Patent 6,302,828
Export models available.

Optional:

950-486 Therapist Seat
950-487 Harness, Standard Unweighing
Note: Standard Unweighing Harness included with Biodex Unweighing System 
960-126 Harness, Support, DLX
Includes Pelvic Support Strap
960-401 Harness, Bariatric
960-402 Harness, Pediatric

Replacement:

945-462 Retention Cords, Pelvic Stabilization   
056-862 Battery and Wall Charging Unit, 115 VAC  
056-863 Battery and Wall Charging Unit, 230 VAC  

Biodex Floor Planner SoftwareRequest More Information
Conditions of Purchase

Biodex, Inc.

 

 

1-800-224-6339
Int'l +1-631-924-9000



Balance & Mobility

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King's Daughters Medical Center
Director, Outpatient Therapy Services
John Welsheimer, PT, MSSL

“The Biodex Offset Unweighing System is a versatile component of our rehabilitation program.”

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