A 12-Week Home-Based Electrical Stimulation Program for Strength in Adults With Knee Osteoarthritis
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ClinicalTrials.gov Identifier: NCT05765435 |
Recruitment Status :
Recruiting
First Posted : March 13, 2023
Last Update Posted : March 13, 2023
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Condition or disease | Intervention/treatment | Phase |
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Osteoarthritis Osteoarthritis, Knee | Other: 12-week exercise and walking program Device: NMES Device: FES | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 45 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Effects of an Electrical Stimulation Program on Strength, Functional Capacity, Pain, and Gait in Individuals With Knee Osteoarthritis |
Estimated Study Start Date : | March 2023 |
Estimated Primary Completion Date : | September 2023 |
Estimated Study Completion Date : | September 2023 |

Arm | Intervention/treatment |
---|---|
Control
Device: Cionic Neural Sleeve NS-100. Participants will wear the device during the 12-week exercise and walking program. There will be no stimulation.
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Other: 12-week exercise and walking program
The exercise program requires isometric quadriceps contractions in a supine position with a rolled-up towel placed behind the knee. The exercise program will be performed by participants 5 days per week for 12 weeks. The walking program will be performed 3 days per week for 12 weeks. Participants will walk for 10 minutes and then gradually increase walking time to 30 minutes by the end of the study. Participants will wear the device during the exercise and walking program, which may range from 1 minute to 35 minutes per day. |
Experimental: NMES
Device: Cionic Neural Sleeve NS-100. Participants will wear the device during the 12-week exercise and walking program and receive stimulation assistance during the exercise sessions.
|
Other: 12-week exercise and walking program
The exercise program requires isometric quadriceps contractions in a supine position with a rolled-up towel placed behind the knee. The exercise program will be performed by participants 5 days per week for 12 weeks. The walking program will be performed 3 days per week for 12 weeks. Participants will walk for 10 minutes and then gradually increase walking time to 30 minutes by the end of the study. Participants will wear the device during the exercise and walking program, which may range from 1 minute to 35 minutes per day. Device: NMES Sleeve applies neuromuscular stimulation during exercises to help contract appropriate muscles at appropriate times.
Other Name: External functional neuromuscular stimulator |
Experimental: NMES and FES
Device: Cionic Neural Sleeve NS-100. Participants will wear the device during the 12-week exercise and walking program and receive stimulation assistance during the exercise and walking sessions.
|
Other: 12-week exercise and walking program
The exercise program requires isometric quadriceps contractions in a supine position with a rolled-up towel placed behind the knee. The exercise program will be performed by participants 5 days per week for 12 weeks. The walking program will be performed 3 days per week for 12 weeks. Participants will walk for 10 minutes and then gradually increase walking time to 30 minutes by the end of the study. Participants will wear the device during the exercise and walking program, which may range from 1 minute to 35 minutes per day. Device: NMES Sleeve applies neuromuscular stimulation during exercises to help contract appropriate muscles at appropriate times.
Other Name: External functional neuromuscular stimulator Device: FES Sleeve applies functional electrical stimulation as patients walk to help contract appropriate muscles at appropriate times.
Other Name: External functional neuromuscular stimulator |
- Change in Maximal Voluntary Isometric Contraction of the Quadriceps Using a Dynamometer [ Time Frame: Baseline, 6 weeks, 12 weeks ]Strength assessment of the quadriceps muscles using a handheld dynamometer, measured in Newtons.
- Change in Perceived Pain Scores Assessed by the Western Ontario/McMaster Universities Osteoarthritis Index (WOMAC) [ Time Frame: Baseline, 6 weeks, 12 weeks ]WOMAC pain questionnaire to measure perceived pain, measured by score. Scores on the WOMAC pain subscale range from 0 to 20, with high scores indicative of worse pain.
- Change in Perceived Functional Capacity [ Time Frame: Baseline, 6 weeks, 12 weeks ]WOMAC physical function (WOMAC-PF) questionnaire to measure perceived functional capacity, measured by score. Scores on the WOMAC-PF subscale range from 0 to 68, with high scores indicative of worse functional limitations.
- Change in Walking Performance [ Time Frame: Baseline, 6 weeks, 12 weeks ]Measured by gait speed via the 10-meter walk test (meters per second) and walking endurance via the 6-minute walk test (meters).
- Adherence to the Program [ Time Frame: Daily ]Measured by the usage log of the device or exercise diary/calendar, measured in minutes.
- Change in Thigh Muscle Volume [ Time Frame: Baseline, 6 weeks, 12 weeks ]Measured by thigh circumference using a tape measure and prediction model to estimate muscle volume, measured in cubic centimeters.
- Change in Functional Ability of the Lower Limb [ Time Frame: Baseline, 6 weeks, 12 weeks ]Measured by the Five Times Sit to Stand Test, measured in seconds.
- Change in Perceived Quality of Life [ Time Frame: Baseline, 6 weeks, 12 weeks ]Short Form 36 questionnaire to measure quality of life, measured by score. Score ranges from 0 to 100, with 0 representing extreme interference, and 100 representing no interference in quality of life.

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Ages Eligible for Study: | 22 Years to 75 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Persons with knee osteoarthritis between the ages of 22 and 75
- Ability to walk a duration of 30 minutes per walking session (with or without an assistive device), for three days per week
- Able to tolerate the device for up to 1 hour per lab session
- No recent change in medication or exacerbation of symptoms over the last 60 days
- Radiographic KOA Kellgren and Lawrence grade 2 or 3 or physician diagnosed mild or moderate KOA if radiographic imaging is not available
- No hyaluronic acid or cortisone injection into knees in previous 12 months
Exclusion Criteria:
- Lower motor neuron disease or injury (e.g. peripheral neuropathy) that may impair response to stimulation
- Absent sensation in the impacted or more impacted leg
- Inadequate response to stimulation, as defined as inability to achieve muscle contraction or tolerate stimulation
- Inability to ambulate with the sleeve in place of an ankle foot orthosis (AFO)/knee ankle foot orthosis (KAFO) if utilized
- Use of FES devices in the past year
- Demand-type cardiac pacemaker or defibrillator
- Malignant tumor in the impacted or more impacted leg
- Existing thrombosis in the impacted or more impacted leg
- Fracture or dislocation in the impacted or more impacted leg that could be adversely affected by motion from stimulation
- History of knee surgery
- History of other types of arthritis
- History of neurological disease
- History of seizures or diagnosed with epilepsy/seizures
- Current pregnancy

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05765435
Contact: Rebecca Webster, PhD | 925-788-6649 | rebecca@cionic.com |
United States, California | |
Cionic, Inc. | Recruiting |
San Francisco, California, United States, 94133 | |
Contact: Rebecca Webster 925-788-6649 rebecca@cionic.com |
Responsible Party: | Rebecca Webster, Director of Clinical Operations and Research, Cionic, Inc. |
ClinicalTrials.gov Identifier: | NCT05765435 |
Other Study ID Numbers: |
CIONIC-05-001 |
First Posted: | March 13, 2023 Key Record Dates |
Last Update Posted: | March 13, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | Yes |
Product Manufactured in and Exported from the U.S.: | No |
Osteoarthritis Osteoarthritis, Knee Arthritis |
Joint Diseases Musculoskeletal Diseases Rheumatic Diseases |