Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
30 participants
INTERVENTIONAL
2020-09-07
2020-11-01
Brief Summary
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Paperwork: After providing consent, participants age and gender will be documented, and height and weight will be measured and documented. Participants will complete a modified version of the Modified Oswestry Low Back Pain Disability Questionnaire, which has been adjusted to be more specific to the military population. The questionnaire will be filled out indicating the cadet's current level of pain. They will then complete the same questionnaire indicating their pain within the last year.
Protocol: First, the skin will be prepared and surface electromyography (EMG) electrodes will be placed. Dynamic, surface EMG data will be obtained of the gluteus medius, gluteus maximus, erector spinae, rectus femoris, and biceps femoris muscles in accordance with SENIAM (Surface Electromyography for the Non-Invasive Assessment of Muscles) guidelines. Skin preparatation will consist of trimming hair if the skin surface at which the electrodes have to be placed is covered with hair. Next, the skin will be cleaned with alcohol. The skin will be allowed to dry prior to electrode placement. Lastly, skin will be abraded to reduce impedance. Following electrode application, participants will complete five minutes of light activity on a bike or treadmill for warm-up. Next, in order to normalize the data, manual muscle tests will be performed for each of the six muscles being test. Then, participants will walk at a speed of four miles per hour for 10 seconds as a dynamic measurement for normalizing the data.
After completion of the two normalization protocols, participants will complete a five kilometer (3.1 mile) walk on a treadmill at a speed of three miles per hour, with and without a 35 lb. load carried in a traditional rucksack. The load conditions will be randomized and counterbalanced in order to mitigate effects of fatigue, and the conditions will be performed in two separate sessions (separated by 24-48 hours).
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
FACTORIAL
SCREENING
NONE
Study Groups
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Without Load
5 kilometer walk with no load carried
load carriage
35 pound load carried on the back
With Load
5 kilometer walk with load
load carriage
35 pound load carried on the back
Interventions
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load carriage
35 pound load carried on the back
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
35 Years
ALL
Yes
Sponsors
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North Dakota State University
OTHER
Responsible Party
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Locations
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North Dakota State University
Fargo, North Dakota, United States
Countries
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Other Identifiers
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HE20208
Identifier Type: -
Identifier Source: org_study_id
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