4.3 Article

Wearable Focal Muscle Vibration on Pain, Balance, Mobility, and Sensation in Individuals with Diabetic Peripheral Neuropathy: A Pilot Study

Publisher

MDPI
DOI: 10.3390/ijerph18052415

Keywords

wearable focal muscle vibration; diabetic peripheral neuropathy; pain; balance and mobility; sensation; satisfaction and compliance

Funding

  1. Exploratory Grant Award from the Harold Hamm Diabetes Center at the University of Oklahoma
  2. College of Allied Health Faculty Seed Grant

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This study investigated the benefits of 4-week, in-home wearable focal muscle vibration therapy on pain, balance, mobility, and sensation in people with diabetic peripheral neuropathy (DPN). Results showed significant improvements in average pain, pain interference with walking ability, and standard and cognitive Timed Up-and-Go scores. Balance and sensations improved but not significantly, with a trend towards correlation between changes in balance and baseline pain. Participants were highly satisfied with the therapy and compliance was 100%. Further studies with larger samples and better outcome measures are needed.
People with diabetic peripheral neuropathy (DPN) experience a lower quality of life caused by associated pain, loss of sensation and mobility impairment. Current standard care for DPN is limited and lacking. This study explores the benefits of 4-week, in-home wearable focal muscle vibration (FMV) therapy on pain, balance, mobility, and sensation in people with DPN. Participants were randomized into three groups and received different FMV intensities. FMV was applied using a modified Myovolt(TM) wearable device to the tibialis anterior, distal quadriceps, and gastrocnemius/soleus muscles on both lower limbs for three days a week over four weeks. The outcomes included pain, balance, mobility, sensation, device usage log, feedback survey, and a semi-structured interview. In all, 23 participants completed the study. The results showed significant improvement in average pain (Pre: 4.00 +/- 2.29; Post: 3.18 +/- 2.26; p = 0.007), pain interference with walking ability (Pre: 4.14 +/- 3.20; Post: 3.09 +/- 1.976; p = 0.03), and standard and cognitive Timed Up-and-Go scores (Pre: 13.75 +/- 5.34; Post: 12.65 +/- 5.25; p = 0.04; Pre: 15.12 +/- 6.60; Post: 12.71 +/- 5.57; p = 0.003, respectively); the overall pain improvement was trending towards significance (Pre: 3.48 +/- 2.56; Post: 2.87 +/- 1.85; p = 0.051). Balance and sensations improved but not significantly. There was a trend towards significance (p = 0.088), correlation (r = 0.382) between changes in balance and baseline pain. The participants were highly satisfied with wearable FMV and were 100% compliant. FMV therapy was associated with improved pain, mobility, and sensation. Further study with a larger sample and better outcome measures are warranted.

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