Pilot Study of Exercise and Peripheral Nerve Function in People With Diabetes - ENRGy2 Addendum

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01764373
Recruitment Status : Completed
First Posted : January 9, 2013
Last Update Posted : September 27, 2013
Information provided by (Responsible Party):
Patricia Kluding, PhD, University of Kansas

Brief Summary:
This is an amendment to study posting NCT00970060. Based on preliminary results from that study is was determined there needs to be a follow-up exercise intervention study. This study has two additional aims than the original study. The objectives are to determine is a prolonged exercise routine, 16-weeks, paired with refined measures of effectiveness positively impact people with diabetic neuropathy.

Condition or disease Intervention/treatment Phase
Diabetic Neuropathy Other: Aerobic Exercise Not Applicable

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 19 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Official Title: Pilot Study of Exercise and Peripheral Nerve Function in People With Diabetes - Exercise and Neuropathy Research Group v.2 (ENRGy2) Addendum
Study Start Date : June 2012
Actual Primary Completion Date : July 2013
Actual Study Completion Date : July 2013

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: 16-Week Exercise Program
Subjects to participate in 16-week3 supervised aerobic exercise 3 times per week. Exercise sessions to last between 30 and 60 minutes.
Other: Aerobic Exercise
Aerobic exercises in the program include cycle ergometers, treadmills, recumbent steppers and elliptical trainers.

Primary Outcome Measures :
  1. Change nerve function [ Time Frame: Baseline to Week 16 ]
    Change in nerve function will be quantified using the Total Neuropathy Score (TNS). The TNS is a composite measure of peripheral nerve function that includes grading of signs/symptoms, nerve conduction studies, and quantitative sensory testing. We will not include proprioceptive testing in this project.

  2. Change in aerobic fitness [ Time Frame: Baseline to Week 16 ]
    Aerobic fitness will be assessed with a graded maximal exercise test as in the previous protocol with a metabolic cart and integrated ECG.

Secondary Outcome Measures :
  1. Change in cutaneous innervation [ Time Frame: Baseline to Week 16 ]
    Change will be measured after exercise intervention to see what effects exercise has on dermal and epidermal innervation. Change measured via skin biopsy.

  2. Change in maximal workload [ Time Frame: Baseline to Week 16 ]
    Measured as part of the aerobic fitness assessment. Use of standardized protocol with total body recumbent stepped to be used to obtain the maximal workload.

  3. Change in pain experienced [ Time Frame: Baseline to Week 16 ]
    Pain will be measured using the Brief Pain Inventory Short Form for diabetic peripheral neuropathy. This scale has been specifically validated in this population and consists of 3 pain severity items and a 7-item pain interference scale.

Information from the National Library of Medicine

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Ages Eligible for Study:   40 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Age 40-70
  • Type 2 diabetes
  • Peripheral neuropathy

Exclusion Criteria:

  • serious cardiac pathology such as recent myocardial infarction or heart surgery, uncontrolled cardiac arryhthmia, hypertrophic cardiomyopathy symptomatic aortic stenosis or heart failure, unstable angina, acute pulmonary embolus or myocarditis, conduction abnormalities, or mitral valve prolapse
  • serious musculoskeletal problems that would limit ability to exercise
  • skin conditions, circulatory insufficiency, or open wounds in the leg that would interfere with healing from the biopsy
  • open wounds on the weight bearing surface of the feet
  • not able to ambulate independently
  • stroke or other central nervous system pathology
  • stage 2 hypertension (resting blood pressure > 160 systolic or > 100 diastolic)
  • lidocaine allergy
  • anticipated difficulty with blood clotting due to Coumadin(Warfarin) use or blood clotting disorder
  • body weight > 450 lbs
  • inadequate cognition and communication abilities, defined as < 24 on the Mini Mental Status Exam (MMSE)
  • pregnant or planning on becoming pregnant in the 18 weeks following enrollment

Information from the National Library of Medicine

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 identifier (NCT number): NCT01764373

United States, Kansas
University of Kansas Medical Center
Kansas City, Kansas, United States, 66160
Sponsors and Collaborators
University of Kansas
Principal Investigator: Patricia Kluding, PhD University of Kansas Medical Center

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Patricia Kluding, PhD, Associate Professor, University of Kansas Identifier: NCT01764373     History of Changes
Other Study ID Numbers: ENRGy2 Addendum
First Posted: January 9, 2013    Key Record Dates
Last Update Posted: September 27, 2013
Last Verified: September 2013

Keywords provided by Patricia Kluding, PhD, University of Kansas:
Aerobic Exercise

Additional relevant MeSH terms:
Diabetic Neuropathies
Peripheral Nervous System Diseases
Neuromuscular Diseases
Nervous System Diseases
Diabetes Complications
Diabetes Mellitus
Endocrine System Diseases