Salatel, Joseph C.
(2023)
Movement description and prediction on 14-km Ruck in Marine Corps Officer Training.
Master's Thesis, University of Pittsburgh.
(Unpublished)
This is the latest version of this item.
Abstract
Ruck marches are a common military training activity important for traveling in units together safely and can be assessed with portable technology to measure their demand on the Marines are a field-based test with lab-based measurements to measure demand on the Marines. PURPOSE: to measure biomechanical gait factors during a 14-km ruck march as descriptive changes in movement. An additional study aim is to investigate if output from the isometric mid-thigh pull (IMTP) and counter movement jump (CMJ) will provide additional insight into biomechanical changes onset during ruck marches and performance predictors. METHODS: 46 Officer candidates (34 male, 12 female) participated in a ruck march as part of their training with attached inertial measurement units (IMU) . The 14-km ruck march was assessed IMUs strapped over subjects’ boots. Subjects completed pretesting counter movement jumps and isometric mid-thigh pull on dual plated force plates. The first two kilometers (km) were compared to the last 2 km for analysis. The T-test analyzed changes from the first 2 km and last 2 km step count, impact load, and average intensity. 2-way ANOVA compared measurements between men and women Marine Corp Officer Candidates. IMTP, CMJ, and symmetry angle (SA) for correlations performance measures on effects of biomechanical performance in the 14 km ruck march. RESULTS: There was significant increase in the impact load of the left leg, right leg and total at first 2 km (6613.99 ± 1824.27; 6731.48±1780.18; 13345.48±3544.09) and last 2 km of the ruck march (7130.92 ± 1856.15; 7190.92±1791.72; p <0.001) . There was significant increase in the impact load of the average intensity on left leg at first 2-km (8.85 ± 1.47 g; 8.97±1.48 g; 8.90±1.40 g) and last 2-km of the ruck march (9.58 ± 1.76 g; 9.59±1.67 g; 9.58±1.61 g; p <0.001). Step count increased for males from first 2 km compared to last 2 km of ruck march; females step count decreased.
CONCLUSION: The first 2 km are not the same in impact load, average intensity last 2 km of a ruck march for Marines. Marines will change parameters of gait which vary depending on individual characteristics to be able to maintain pace with the group. Performance tests showed mixed results of correlation in gait parameters during the ruck march. Symmetry angle had few correlations best looked at an individual basis.
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Details
| Item Type: |
University of Pittsburgh ETD
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| Status: |
Unpublished |
| Creators/Authors: |
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| ETD Committee: |
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| Date: |
11 July 2023 |
| Date Type: |
Publication |
| Defense Date: |
1 May 2023 |
| Approval Date: |
11 July 2023 |
| Submission Date: |
10 May 2023 |
| Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
| Number of Pages: |
77 |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
School of Health and Rehabilitation Sciences > Sports Medicine and Nutrition |
| Degree: |
MS - Master of Science |
| Thesis Type: |
Master's Thesis |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
Ruck, march, Marines, step, IMU |
| Date Deposited: |
11 Jul 2023 15:44 |
| Last Modified: |
11 Jul 2023 15:44 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/44917 |
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Movement description and prediction on 14-km Ruck in Marine Corps Officer Training. (deposited 11 Jul 2023 15:44)
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