Foot and Ankle Range of Motion (Stretching) Apparatus

This study has been terminated.
(PI no longer with the University of Missouri, the study will not be continued.)
Information provided by (Responsible Party):
University of Missouri-Columbia Identifier:
First received: September 7, 2007
Last updated: May 11, 2016
Last verified: May 2016
Range of motion at ankle joint and subtalar joint will be assessed before and after utilization of ARM device. The changes in range of motion will be recorded and compared to literature.

Condition Intervention
Plantar Fasciitis
Calcaneus Fractures
Device: Non-Measuring Ankle Exerciser (Ankle Recovery Mechanism)

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: The Use of a New Foot and Ankle Range of Motion (Stretching) Apparatus in Subjects With Stiff Ankles

Resource links provided by NLM:

Further study details as provided by University of Missouri-Columbia:

Primary Outcome Measures:
  • Participants randomized into ARM stretching device group will experience less ankle stiffness and an increased range of motion after using the stretching device, as compared to the control group receiving traditional physiotherapy. [ Time Frame: Ten weeks ] [ Designated as safety issue: No ]

Enrollment: 26
Study Start Date: September 2007
Study Completion Date: February 2012
Primary Completion Date: December 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: Group A
Patient ankle range of motion will be assessed at clinic visit. No stretching exercises with the device, but will be provided standard care through physiotherapist in acute cases, and no stretching exercises for chronic patients. Reassessment will be done at six weeks and 10 weeks.
Experimental: Group B Stretching
Subjects will train using only one combination of movement, dorsiflexion with inversion. This is done by manipulating the ring so that the medial and anterior ropes are taut. Subject will start with 3 minute warm-up. Subject will then manipulate the ring so that the foot moves into dorsiflexion with inversion until a point of tolerable discomfort is felt; subject will hold this position for 30 seconds. Stretch will be repeated 10 times, each day, for six weeks. Reassessment will be done at six weeks and 10 weeks.
Device: Non-Measuring Ankle Exerciser (Ankle Recovery Mechanism)
Stretching exercise performed 10 times per day, for six (6) weeks.
Other Name: Ankle Recovery Mechanism (ARM)

Detailed Description:

The purpose of this study is to assess how effective a new device is in increasing range of motion and reducing stiffness in the foot and ankle of patients with acquired flatfoot, patients with plantar fasciitis, and those suffering from stiffness after cast removal or other lengthy immobilization.

Project will utilize a physical therapist to measure range of motion and stiffness when patients are consented. Patients will be re-measured at six weeks following use of the device to assist in stretching ankle and foot muscles, and again at 10 weeks for final stiffness and range of motion assessment.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • 18 years of age or older
  • stiffness in or about the ankle joint due to age, diabetes, trauma, flatfoot, plantar fasciitis, or immobilization

Exclusion Criteria:

  • not physically able to use device
  • patients with pain disorders
  • patients lacking necessary hand-eye coordination
  • patients using lower extremity external fixator
  • patients with history of non-compliance
  Contacts and Locations
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Please refer to this study by its identifier: NCT00527748

United States, Missouri
University of Missouri-Columbia Healthcare
Columbia, Missouri, United States, 65212
Sponsors and Collaborators
University of Missouri-Columbia
Principal Investigator: Saul G Trevino, MD University of Missouri-Columbia School of Medicine
  More Information

Responsible Party: University of Missouri-Columbia Identifier: NCT00527748     History of Changes
Other Study ID Numbers: 1092357 
Study First Received: September 7, 2007
Last Updated: May 11, 2016
Health Authority: United States: Institutional Review Board

Keywords provided by University of Missouri-Columbia:
Range of Motion
Ankle Fractures
Elderly patients

Additional relevant MeSH terms:
Fasciitis, Plantar
Foot Diseases
Musculoskeletal Diseases processed this record on May 26, 2016