Neuromuscular Diseases (NMD)NCT07478172
Effects of Whole-body Electrical Muscle Stimulation Exercise on Adults With Neuromuscular Disease
A study testing Whole-body Electrical Muscle Stimulation Exercise in people with Neuromuscular Diseases (NMD) and Amyotrophic Lateral Sclerosis, run by University of Missouri-Columbia at 1 site in United States.
Trial summary
This single-arm pilot study evaluates the effects of whole-body electrical muscle stimulation (WB-EMS) exercise on neuromuscular and physical function in adults with neuromuscular disease (NMD). Due to motor unit impairments, NMD patients often cannot tolerate traditional exercise. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Neuromuscular Diseases (NMD), Amyotrophic Lateral Sclerosis, Myasthenia Gravis
- What is being tested?
- Whole-body Electrical Muscle Stimulation Exercise
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 50 participants
- Where
- 1 siteUnited States
- Study dates
- 10 Mar 2026to 7 Jan 2031
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age 18 or older
- Diagnosed with one or more of the following neuromuscular conditions: Amyotrophic lateral sclerosis, primary lateral sclerosis, progressive muscle atrophy, spinal muscular atrophy, postpolio syndrome, inclusion body myositis, pompedisease, fascioscapulohumeral muscular dystrophy, charcot marie tooth disease, chronic inflammatory demyelinating polyneuropathy, hereditary spastic paraplegia, myasthenia gravis, lambert-eaton myasthenic syndrome, postural orthostatic tachycardia syndrome, mitochondrial myopathy, nemaline myopathy, centronuclear myopathy, lumbar radiculopathy, non-specific low back pain.
- Ability to stand for approximately 15 minutes continuously with or without an assistive device (i.e. the length of time to stand to take a shower, complete meal preparation, wait in line at the bank, etc.)
- At least some anti-gravity strength in major muscle groups as assessed by manual muscle testing (i.e. 2+/5 strength or better)
- Medical clearance to participate in an exercise program
- Ability to provide informed consent
- Ability to conform to the requirements of the study (i.e. attendance at assessment and intervention visits, maintain current level of non-study physical activity for the duration of the study, no intention to relocate mid-study)
Who cannot join
- Diagnosed with one of the following neuromuscular conditions: Becker's muscular dystrophy, Duchenne muscular dystrophy, limb-girdle muscular dystrophy, myotonic dystrophy type 1 or 2, Freidrich's ataxia, any other NMD with known or suspected cardiac involvement or muscle fiber structural integrity defects.
- Concurrent participation in another interventional research study
- Unable to tolerate 15 minutes of continuous standing with or without an assistive device
- Presence of a pacemaker, metal implants, or other implanted medical devices that could impact participant safety during WB-EMS intervention
- Presence of cochlear implant, cortical stimulator, deep brain stimulator, ventriculoperitoneal shunt, recent skull defect, seizure in the past 12 months while taking anti-epilepsy medication, or previous serious adverse event with TMS, which could impact participant safety during TMS testing
- Presence of unstable acute or chronic disease (i.e. renal failure, rheumatologic disease, cardia arrhythmia, neoplasm, uncontrolled hypertension)
Show all 12Show fewer
- Known pregnancy at time of screening; verbal screening will occur throughout the study.
- Presence of a terminal disease (i.e. receiving hospice services)
- Current or previous use of any drugs known to influence muscle mass or performance within 6 months; these may include but are not limited to anabolic steroids, IGF01, growth hormone, replacement androgen therapy, anti-androgen therapy
- Presence of an additional neurologic conditions affecting somatosensory or motor function/control (i.e. Parkinson's disease, Multiple Sclerosis, h/o stroke, TBI, SCI, ataxia, apraxia, hemiplegia, etc.)
- Musculoskeletal condition or surgery in the past year that would confound results of exercise interventions (i.e. TKA, THA, RTC repair, spinal fusion)
- Other medical conditions, signs, or symptoms that would interfere with study conductor interpretation of results as determined by an investigator
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
W. David Arnold, MD contact
United States1 site, 1 recruiting
- Recruiting
NextGen Precision Health Building, Clinical and Translational Science Unit
Columbia, Missouri, 65211
Manny Morales, 573-882-8571, moralesman@missouri.edu
Stacee Baker, bakersa@health.missouri.edu
About this study
Official title: Effects of Whole-body Electrical Muscle Stimulation Exercise on Adults withNeuromuscular Disease
This single-arm pilot study evaluates the effects of whole-body electrical muscle stimulation (WB-EMS) exercise on neuromuscular and physical function in adults with neuromuscular disease (NMD). Due to motor unit impairments, NMD patients often cannot tolerate traditional exercise. WB-EMS bypasses voluntary activation limits by directly stimulating muscle contractions. Up to 50 adults with conditions like ALS, SMA, and MG will undergo 20-minute supervised WB-EMS sessions (1-2 times weekly for 4-8 weeks) using the Katalyst system. Outcomes include neural excitability (TMS), motor unit behavior (EMG, NCS), functional tests (walk, balance, strength), and patient-reported fatigue, pain, and quality of life. Strict safety monitoring and exclusion criteria are in place. This study will provide preliminary data on WB-EMS as a potential exercise modality for NMD.
Read the detailed description
This single-arm pilot study aims to investigate the effects of a whole-body electrical muscle stimulation (WB-EMS) exercise program on neuromuscular and physical function in adults with neuromuscular disease (NMD). The background rationale is that individuals with NMD often experience significant barriers to traditional exercise due to impaired voluntary motor unit activation, leading to sedentary behavior, physical deconditioning, and worsened long-term health outcomes. WB-EMS may offer a therapeutic alternative by bypassing voluntary activation limits and directly stimulating muscle contractions through externally applied electrical currents. The intervention utilizes the Katalyst system, an FDA-cleared device being used off-label in this population, which delivers targeted stimulation to major muscle groups during synchronized exercise movements. Up to 50 adults diagnosed with various NMDs, including amyotrophic lateral sclerosis, spinal muscular atrophy, myasthenia gravis, and Charcot-Marie-Tooth disease, will be enrolled. Eligible participants must be at least 18 years old, able to stand continuously for 15 minutes with or without assistance, and have at least anti-gravity strength in major muscle groups. Key exclusion criteria include implanted electrical devices, unstable medical conditions, pregnancy, and conditions affecting muscle fiber structural integrity. The intervention consists of 20-minute supervised exercise sessions performed 1-2 times per week over 4-8 weeks, with real-time monitoring of pain, perceived exertion, and tolerability. Outcome measures include neural excitability assessed via transcranial magnetic stimulation, voluntary motor unit characteristics via decomposition electromyography, stimulated motor unit characteristics via compound muscle action potential nerve conduction study, functional performance tests (10-meter walk, timed up and go, five-time sit-to-stand, stair ascent/descent, broad jump, multidirectional lunge), and patient-reported outcomes evaluating fatigue, pain, and quality of life. This pilot study will generate critical preliminary data on the feasibility, safety, and efficacy of WB-EMS as a novel exercise modality for adults with NMD, with the goal of informing future large-scale clinical trials.
- Conditions
- Neuromuscular Diseases (NMD), Amyotrophic Lateral Sclerosis, Myasthenia Gravis, Lambert-eaton Myasthenic Syndrome, Primary Lateral Sclerosis, Spinal Muscular Atrophy
- Being tested
- Whole-body Electrical Muscle Stimulation Exercise
- Keywords
- Neuromuscular Disease, Electrical Stimulation, Whole Body stimulation, Exercise intervention
- Medical subject headings
- Neuromuscular Diseases, Amyotrophic Lateral Sclerosis, Myasthenia Gravis, Lambert-Eaton Myasthenic Syndrome, Motor Neuron Disease, Muscular Atrophy, Spinal, Charcot-Marie-Tooth Disease, Muscular Dystrophy, Facioscapulohumeral
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Whole-body Electrical Muscle Stimulation ExerciseDevice
Katalyst is a fitness device that delivers Whole-body Electrical Muscle Stimulation in conjunction with exercise programs (WB-EMS Exercise). After donning a base layer consisting of fitted shorts and shirt, a vest, shorts, and arm straps with integrated electrodes mapped to major muscle groups (biceps, triceps, pectorals, abdominals, periscapular musculature, paraspinal musculature, gluteus musculature, quadriceps, and hamstrings) are donned. The suit connects to an impulse pack that communicates with the Katalyst iPad App to deliver the programmed stimulation to the participant. Within the Katalyst App, there are leveled exercise programs where low levels (i.e. Level 1 and 2) are simple movements and higher levels (i.e. Levels 3, 4, and 5) have more complex and dynamic movements. There is complete user control of the stimulation level of each individual muscle group to tailor to participant responses and tolerance.
| Study group | Role | What they receive |
|---|---|---|
| Adults with Neuromuscular Disease | Experimental | Participants will complete 1-2 WB-EMS Exercise visits per week for 4-8 weeks. Participants in this study will only perform Level 1 exercise programs in the "Strength" Training Mode. These programs are 20-minute videos led by exercise professionals. They consist of 10-12 exercises performed for 14 repetitions. Each repetition takes 4 seconds to complete (the time that the stimulation is "on") and is followed by a 4 second rest (the time that the stimulation is "off"). While the participant is following along with the video, they will be monitored and stimulation levels adjusted based on participant responses. Monitoring includes maintenance of moderate intensity level rate of perceived exertion and provision of verbal or tactile cues as needed to prompt biomechanically safe performance of each exercise movement. The exercise program (and thereby the stimulation) can be paused at any time by simply apping anywhere on the iPad screen. Receives: Device: Whole-body Electrical Muscle Stimulation Exercise |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean change from baseline in motor unit firing rates using decomposition electromyography (dEMG)
Decomposition electromyography (dEMG) is a measurement of motor unit activity; a surface electrode will be placed over the vastus lateralis in the thigh and participants will be asked to activate that muscle. Participants will take standardized positions, sitting with knee at a 75-degree angle. Participants will perform three 5-second maximal voluntary isometric contractions (MVC); this will be followed by 2 contractions each at 35%, 50% and 70% MVC using a trapezoidal force matching protocol.
Measured: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline in motor evoked potentials using transcranial magnetic stimulation (TMS)
Motor evoked potentials are a measure of neural excitability. They are generated by placing a magnetic coil over the skull. The output will be measured from surface electrodes over the vastus lateralis muscle in the quadriceps. We will be assessing the corticospinal pathway. Participants will take standardized positions, sitting with knee at a 75-degree angle. Participants will perform six contractions at 10% MVC, and four contractions each at 30%, 50% and 70% MVC. Magnetic pulses will be applied during each contraction.
Measured: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline in compound muscle action potential ampliutde using standard nerve conduction study technique
A small amount of electrical stimulation (enough to ensure that the largest possible response is elicited) will be applied to the skin surface over the femoral nerve at the anterior hip. Surface recording electrodes will be placed over the vastus lateralis in the thigh to read out the muscle's response to the nerve stimulation; this is the compound muscle action potential. It is a measure of motor unit health.
Measured: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline in timed functional tests
To capture changes in time to perform common functional movements relevant to maintenance of independence for adults with neuromuscular disease, the investigators will collect data on 10-meter walk/run test, timed up and go test (rise from a chair, walk 3 meters, turn around, and return to sitting in chair at comfortable and fast speeds), 5-time sit-to-stand test (perform 5 times consecutively sitting to standing to sitting again), and 4-stair ascent and descent test (climb 4 stairs and descend 4 stairs with and without handrails).
Measured: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Secondary outcomes (5)
Mean change from baseline in perceived fatigue on a person's life
The Fatigue Severity Scale (FSS) is a patient-reported outcome that assesses the impact of perceived fatigue on a person's life over the prior 7-day period. It consists of 9 statements rated on a 1-7 scale with 1 indicating "strongly disagree" with the statement and 7 indicating "strongly agree". The max score is 63 where higher values indicate more impact of perceived fatigue
Measured: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline in severity of pain and impact of pain on daily life
The Brief Pain Inventory (BPI) is a patient-reported outcome that assesses the severity of pain and impact of pain on daily life over the prior 7-day period. It consists of 9 statements rated on a 1-10 scale with 1 indicating "no pain" or "no interference"and 10 indicating "pain as bad as you can imagine" or "completely interferes".
Measured: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline in the impact of the participant's neuromuscular condition
The Individualized Neuromuscular Quality of Life Questionnaire (INQoL) is a patient-reported outcome that assesses how the participant's neuromuscular condition affects them. There are questions about symptoms, physical ability, independence, relationships, emotional state, body image, and treatments. It consists of 45 items across 10 sections using a scale of 0-6 or 1-7. Raw scores from items in each section are summed, transformed, and converted into a 0-100 score where higher scores indicate worse quality of life.
Measured: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline on the broad jump test
The broad jump test is a measure of lower extremity power. Participants will perform a two-legged jump for distance. Three trials are performed and averaged.
Measured: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline in the multidirectional lunge test
The multidirectional lunge test is a measure of dynamic balance. Participants will stand in the center of an asterisk star shape taped on the floor. Participants will lunge in each of 8 directions and return to two feet in the center of the star with a single push. The distance lunged in each direction is recorded. Three trials are performed on each foot and the data averaged.
Measured: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Mar 2026
- Study start10 Mar 2026
- Primary completion31 Dec 2030 (estimated)
- Study completion7 Jan 2031 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Neuromuscular Diseases (NMD)Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- Enrolled participants will undergo pre-test assessments within 4-7 days before and after the intervention period. The pre-test assessment visit will be scheduled for 3.5 hours, and the post-test assessment visit for 3 hours, reflecting that the pre-test visit will incorporate consenting and screening procedures. The intervention will consist of 1-2 visits per week for 4 weeks with the option of continuing for another 4 weeks; each intervention visit will be scheduled for 1.5 hours with a target of 20 minutes of mild- to moderate-intensity exercise.
- Masking
- None (open label)
- Enrolment
- 50 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Missouri-Columbia
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Kristina Kelly, University of Missouri-Columbia
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07478172
- Sponsor's protocol ID
- 2132650
- Status last verified
- Mar 2026
- First submitted
- 9 Mar 2026
- Last updated
- 17 Mar 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Whole-body Electrical Muscle Stimulation Exercise on Adults withNeuromuscular Disease
- ClinicalTrials.gov ID
- NCT07478172
- Acronym / sponsor ID
- 2132650
- Conditions
- Neuromuscular Diseases (NMD), Amyotrophic Lateral Sclerosis, Myasthenia Gravis, Lambert-eaton Myasthenic Syndrome, Primary Lateral Sclerosis, Spinal Muscular Atrophy
- Keywords
- Neuromuscular Disease, Electrical Stimulation, Whole Body stimulation, Exercise intervention
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 50 participants (estimated)
- Lead sponsor
- University of Missouri-ColumbiaUniversity, hospital or other
- Study start
- 10 Mar 2026 (actual)
- Primary completion
- 31 Dec 2030 (estimated)
- Study completion
- 7 Jan 2031 (estimated)
- First posted
- 17 Mar 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This single-arm pilot study evaluates the effects of whole-body electrical muscle stimulation (WB-EMS) exercise on neuromuscular and physical function in adults with neuromuscular disease (NMD). Due to motor unit impairments, NMD patients often cannot tolerate traditional exercise. WB-EMS bypasses voluntary activation limits by directly stimulating muscle contractions. Up to 50 adults with conditions like ALS, SMA, and MG will undergo 20-minute supervised WB-EMS sessions (1-2 times weekly for 4-8 weeks) using the Katalyst system. Outcomes include neural excitability (TMS), motor unit behavior (EMG, NCS), functional tests (walk, balance, strength), and patient-reported fatigue, pain, and quality of life. Strict safety monitoring and exclusion criteria are in place. This study will provide preliminary data on WB-EMS as a potential exercise modality for NMD.
Detailed description
This single-arm pilot study aims to investigate the effects of a whole-body electrical muscle stimulation (WB-EMS) exercise program on neuromuscular and physical function in adults with neuromuscular disease (NMD). The background rationale is that individuals with NMD often experience significant barriers to traditional exercise due to impaired voluntary motor unit activation, leading to sedentary behavior, physical deconditioning, and worsened long-term health outcomes. WB-EMS may offer a therapeutic alternative by bypassing voluntary activation limits and directly stimulating muscle contractions through externally applied electrical currents. The intervention utilizes the Katalyst system, an FDA-cleared device being used off-label in this population, which delivers targeted stimulation to major muscle groups during synchronized exercise movements. Up to 50 adults diagnosed with various NMDs, including amyotrophic lateral sclerosis, spinal muscular atrophy, myasthenia gravis, and Charcot-Marie-Tooth disease, will be enrolled. Eligible participants must be at least 18 years old, able to stand continuously for 15 minutes with or without assistance, and have at least anti-gravity strength in major muscle groups. Key exclusion criteria include implanted electrical devices, unstable medical conditions, pregnancy, and conditions affecting muscle fiber structural integrity. The intervention consists of 20-minute supervised exercise sessions performed 1-2 times per week over 4-8 weeks, with real-time monitoring of pain, perceived exertion, and tolerability. Outcome measures include neural excitability assessed via transcranial magnetic stimulation, voluntary motor unit characteristics via decomposition electromyography, stimulated motor unit characteristics via compound muscle action potential nerve conduction study, functional performance tests (10-meter walk, timed up and go, five-time sit-to-stand, stair ascent/descent, broad jump, multidirectional lunge), and patient-reported outcomes evaluating fatigue, pain, and quality of life. This pilot study will generate critical preliminary data on the feasibility, safety, and efficacy of WB-EMS as a novel exercise modality for adults with NMD, with the goal of informing future large-scale clinical trials.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- Enrolled participants will undergo pre-test assessments within 4-7 days before and after the intervention period. The pre-test assessment visit will be scheduled for 3.5 hours, and the post-test assessment visit for 3 hours, reflecting that the pre-test visit will incorporate consenting and screening procedures. The intervention will consist of 1-2 visits per week for 4 weeks with the option of continuing for another 4 weeks; each intervention visit will be scheduled for 1.5 hours with a target of 20 minutes of mild- to moderate-intensity exercise.
| Arm | Type | Receives |
|---|---|---|
| Adults with Neuromuscular Disease | Experimental | Device: Whole-body Electrical Muscle Stimulation ExerciseParticipants will complete 1-2 WB-EMS Exercise visits per week for 4-8 weeks. Participants in this study will only perform Level 1 exercise programs in the "Strength" Training Mode. These programs are 20-minute videos led by exercise professionals. They consist of 10-12 exercises performed for 14 repetitions. Each repetition takes 4 seconds to complete (the time that the stimulation is "on") and is followed by a 4 second rest (the time that the stimulation is "off"). While the participant is following along with the video, they will be monitored and stimulation levels adjusted based on participant responses. Monitoring includes maintenance of moderate intensity level rate of perceived exertion and provision of verbal or tactile cues as needed to prompt biomechanically safe performance of each exercise movement. The exercise program (and thereby the stimulation) can be paused at any time by simply apping anywhere on the iPad screen. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Age 18 or older
- Diagnosed with one or more of the following neuromuscular conditions: Amyotrophic lateral sclerosis, primary lateral sclerosis, progressive muscle atrophy, spinal muscular atrophy, postpolio syndrome, inclusion body myositis, pompedisease, fascioscapulohumeral muscular dystrophy, charcot marie tooth disease, chronic inflammatory demyelinating polyneuropathy, hereditary spastic paraplegia, myasthenia gravis, lambert-eaton myasthenic syndrome, postural orthostatic tachycardia syndrome, mitochondrial myopathy, nemaline myopathy, centronuclear myopathy, lumbar radiculopathy, non-specific low back pain.
- Ability to stand for approximately 15 minutes continuously with or without an assistive device (i.e. the length of time to stand to take a shower, complete meal preparation, wait in line at the bank, etc.)
- At least some anti-gravity strength in major muscle groups as assessed by manual muscle testing (i.e. 2+/5 strength or better)
- Medical clearance to participate in an exercise program
Key exclusion criteria (12 listed)
- Diagnosed with one of the following neuromuscular conditions: Becker's muscular dystrophy, Duchenne muscular dystrophy, limb-girdle muscular dystrophy, myotonic dystrophy type 1 or 2, Freidrich's ataxia, any other NMD with known or suspected cardiac involvement or muscle fiber structural integrity defects.
- Concurrent participation in another interventional research study
- Unable to tolerate 15 minutes of continuous standing with or without an assistive device
- Presence of a pacemaker, metal implants, or other implanted medical devices that could impact participant safety during WB-EMS intervention
- Presence of cochlear implant, cortical stimulator, deep brain stimulator, ventriculoperitoneal shunt, recent skull defect, seizure in the past 12 months while taking anti-epilepsy medication, or previous serious adverse event with TMS, which could impact participant safety during TMS testing
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Whole-body Electrical Muscle Stimulation ExerciseKatalyst is a fitness device that delivers Whole-body Electrical Muscle Stimulation in conjunction with exercise programs (WB-EMS Exercise). After donning a base layer consisting of fitted shorts and shirt, a vest, shorts, and arm straps with integrated electrodes mapped to major muscle groups (biceps, triceps, pectorals, abdominals, periscapular musculature, paraspinal musculature, gluteus musculature, quadriceps, and hamstrings) are donned. The suit connects to an impulse pack that communicates with the Katalyst iPad App to deliver the programmed stimulation to the participant. Within the Katalyst App, there are leveled exercise programs where low levels (i.e. Level 1 and 2) are simple movements and higher levels (i.e. Levels 3, 4, and 5) have more complex and dynamic movements. There is complete user control of the stimulation level of each individual muscle group to tailor to participant responses and tolerance. | Device | Adults with Neuromuscular Disease |
Primary outcome
Mean change from baseline in motor unit firing rates using decomposition electromyography (dEMG)
Time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Decomposition electromyography (dEMG) is a measurement of motor unit activity; a surface electrode will be placed over the vastus lateralis in the thigh and participants will be asked to activate that muscle. Participants will take standardized positions, sitting with knee at a 75-degree angle. Participants will perform three 5-second maximal voluntary isometric contractions (MVC); this will be followed by 2 contractions each at 35%, 50% and 70% MVC using a trapezoidal force matching protocol.
Mean change from baseline in motor evoked potentials using transcranial magnetic stimulation (TMS)
Time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Motor evoked potentials are a measure of neural excitability. They are generated by placing a magnetic coil over the skull. The output will be measured from surface electrodes over the vastus lateralis muscle in the quadriceps. We will be assessing the corticospinal pathway. Participants will take standardized positions, sitting with knee at a 75-degree angle. Participants will perform six contractions at 10% MVC, and four contractions each at 30%, 50% and 70% MVC. Magnetic pulses will be applied during each contraction.
Mean change from baseline in compound muscle action potential ampliutde using standard nerve conduction study technique
Time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
A small amount of electrical stimulation (enough to ensure that the largest possible response is elicited) will be applied to the skin surface over the femoral nerve at the anterior hip. Surface recording electrodes will be placed over the vastus lateralis in the thigh to read out the muscle's response to the nerve stimulation; this is the compound muscle action potential. It is a measure of motor unit health.
Mean change from baseline in timed functional tests
Time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
To capture changes in time to perform common functional movements relevant to maintenance of independence for adults with neuromuscular disease, the investigators will collect data on 10-meter walk/run test, timed up and go test (rise from a chair, walk 3 meters, turn around, and return to sitting in chair at comfortable and fast speeds), 5-time sit-to-stand test (perform 5 times consecutively sitting to standing to sitting again), and 4-stair ascent and descent test (climb 4 stairs and descend 4 stairs with and without handrails).
5 secondary outcomes
Mean change from baseline in perceived fatigue on a person's life
Time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline in severity of pain and impact of pain on daily life
Time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline in the impact of the participant's neuromuscular condition
Time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline on the broad jump test
Time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Mean change from baseline in the multidirectional lunge test
Time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Mar 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
W. David Arnold, MD contact
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Whole-body Electrical Muscle Stimulation Exercise in people with Neuromuscular Diseases (NMD) and Amyotrophic Lateral Sclerosis, run by University of Missouri-Columbia at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 17 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Kristina M Kelly, DPT, MS, EdM (573-884-2596, kristina.kelly@health.missouri.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Mean change from baseline in motor unit firing rates using decomposition electromyography (dEMG) (time frame: Measured 4-7 days prior to the start of intervention (Week 1) and 4-7 days after 4 weeks of intervention (Week 6 and Week 11).). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Mar 2026.