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.
Age range
18 Years
Sex
ALL
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Mean change from baseline in motor unit firing rates using decomposition electromyography (dEMG)
Timeframe: 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)
Timeframe: 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
Timeframe: 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
Timeframe: 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).
Kristina M Kelly, DPT, MS, EdM