Muscle Activity During Load Carriage in ROTC Cadets
Public ClinicalTrials.gov record NCT04744246. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
An Analysis of Muscle Activity During Load Carriage Activity in Army ROTC Cadets
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Army ROTC Cadets who are currently enrolled in Military Science courses will be asked to participate in this experimental research design. A total of 30 healthy cadets consisting of approximately 24 males and six females will be recruited, as this will provide an accurate representation of the overall Army demographics with 17% being female. 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).
Study identification
- NCT ID
- NCT04744246
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 30 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 35 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 6, 2020
- Primary completion
- Oct 28, 2020
- Completion
- Oct 31, 2020
- Last update posted
- Feb 7, 2021
2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| North Dakota State University | Fargo | North Dakota | 58108 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04744246, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 7, 2021 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04744246 live on ClinicalTrials.gov.