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The Effects of Sensory Training On Pain Modulation, Cognition and Time to Fatigue in Healthy Adults

Not Applicable
Withdrawn
Conditions
Healthy Participants
Interventions
Device: Active eMNS
Device: Sham eMNS
Registration Number
NCT02672371
Lead Sponsor
Spaulding Rehabilitation Hospital
Brief Summary

The study is a randomized clinical trial that is assessing the effects of sensory training on pain modulation, cognition, and physical endurance (time to fatigue) in healthy participants

Detailed Description

Not available

Recruitment & Eligibility

Status
WITHDRAWN
Sex
All
Target Recruitment
Not specified
Inclusion Criteria
  • Able to provide informed consent to participate in the study
  • Able to perform physical activities such as cycling
  • 18-40 years old
  • BMI<27
  • Practice of moderate intensity aerobic physical activity less than 150 minutes per week
Exclusion Criteria
  • Hypertension
  • Diabetes
  • Cardiovascular disease
  • Subjects with pacemakers, and/or implantable cardioverter-defibrillators
  • History of asthma with active symptomatology in the past year, pulmonary disease or use of inhalers
  • Physical disability, neurological and/or psychological disorder that precludes safe and adequate testing
  • Conditions that may impair the ability to feel pain
  • Mental impairment with limited ability to cooperate
  • Uncorrected medical conditions, such as significant anemia, important electrolyte imbalance, or hyperthyroidism
  • Pregnancy or trying to become pregnant in the next 6 months
  • History of alcohol or drug abuse within the past 6 months as self-reported
  • Epilepsy
  • Suffering from severe depression (with a score >30 in the Beck Depression Inventory)
  • History of unexplained fainting spells as self-reported
  • Head injury resulting in more than a momentary loss of consciousness
  • History of neurosurgery as self-reported
  • Use of antiepileptic and/or hypnotic medications like carbamazepine, valproate acid, gabapentin, zolpidem, etc.
  • Use of medication with potential cardiovascular influence
  • Active smoker, or history of smoking in the last 6 months
  • Skin lesion or open wounds around or in area of electrode application
  • Tattoos in upper limb or along the nerve tract

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
active eMNSActive eMNSSubjects with receive active eMNS for 20 minutes.
sham eMNSSham eMNSSubjects with receive sham eMNS for 20 minutes.
Primary Outcome Measures
NameTimeMethod
VASBetween Visit 2 and 3...where Visit 1 = baseline, Visit 2 = stimulation visit, randomly assigned sham or active (about 2 days from baseline), and Visit 3 = other stimulation visit, sham or active - one not received before (about 1 week from visit 2)

Pain threshold as measured by Visual Analogue Scale (VAS) between Visits 2 and 3

DNICBetween Visit 2 and 3...where Visit 1 = baseline, Visit 2 = stimulation visit, randomly assigned sham or active (about 2 days from baseline), and Visit 3 = other stimulation visit, sham or active - one not received before (about 1 week from visit 2)

Pain threshold as measured by Descending Noxious Inhibitory Control (DNIC) between Visits 2 and 3

PPTBetween Visit 2 and 3...where Visit 1 = baseline, Visit 2 = stimulation visit, randomly assigned sham or active (about 2 days from baseline), and Visit 3 = other stimulation visit, sham or active - one not received before (about 1 week from visit 2)

Pain threshold as measured by Pressure Pain Threshold (PPT) between Visits 2 and 3 (active stimulation and sham, order randomized).

Secondary Outcome Measures
NameTimeMethod
Heart rateVisit 1, 2, and 3...where Visit 1 = baseline, Visit 2 = stimulation visit, randomly assigned sham or active (about 2 days from baseline), and Visit 3 = other stimulation visit, sham or active - one not received before (about 1 week from visit 2)

Heart rate as measured by a standard electrocardiogram

Attention TaskVisit 2 and 3...where Visit 1 = baseline, Visit 2 = stimulation visit, randomly assigned sham or active (about 2 days from baseline), and Visit 3 = other stimulation visit, sham or active - one not received before (about 1 week from visit 2)

Cognitive Performance (for attention) as measured by the Attention Network Task

N Back testVisit 2 and 3...where Visit 1 = baseline, Visit 2 = stimulation visit, randomly assigned sham or active (about 2 days from baseline), and Visit 3 = other stimulation visit, sham or active - one not received before (about 1 week from visit 2)

Cognitive Performance (for working memory) as measured by the

EEGVisit 2 and Vist 3...where Visit 1 = baseline, Visit 2 = stimulation visit, sham or active (about 2 days from baseline), and Visit 3 = stimulation visit, sham or active (about 1 week from visit 2)

Spontaneous oscillatory brain activity as measured by EEG using a wireless Enobio system (Neuroelectrics, Barcelona, Spain).

Time to fatigueVisit 2 and 3...where Visit 1 = baseline, Visit 2 = stimulation visit, randomly assigned sham or active (about 2 days from baseline), and Visit 3 = other stimulation visit, sham or active - one not received before (about 1 week from visit 2)

Time to fatigue as measured by total cycling time at 80% of peak power.

Perception of physical exertionVisit 1, 2, and 3...where Visit 1 = baseline, Visit 2 = stimulation visit, randomly assigned sham or active (about 2 days from baseline), and Visit 3 = other stimulation visit, sham or active - one not received before (about 1 week from visit 2)

Perception of physical exertion as measured by the 6-20 Borg Scale

Respiratory rateVisit 1, 2, and 3...where Visit 1 = baseline, Visit 2 = stimulation visit, randomly assigned sham or active (about 2 days from baseline), and Visit 3 = other stimulation visit, sham or active - one not received before (about 1 week from visit 2)

Respiratory rate as measured by a belt transducer

Trial Locations

Locations (1)

Spaulding Rehabilitation Network Research Institute

🇺🇸

Charlestown, Massachusetts, United States

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