The Effect of the Weight of Equipment on Muscle Activity of the Lower Extremity in Soldiers

Due to their profession and the tasks it entails, soldiers are exposed to high levels of physical activity and strain. This can result in overexertion and pain in the locomotor system, partly caused by carrying items of equipment. The aim of this study was to analyse the extent of muscle activity in...

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Main Authors: Tobias Lindner, Christoph Schulze, Sandra Woitge, Susanne Finze, Wolfram Mittelmeier, Rainer Bader
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/2012/976513
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author Tobias Lindner
Christoph Schulze
Sandra Woitge
Susanne Finze
Wolfram Mittelmeier
Rainer Bader
author_facet Tobias Lindner
Christoph Schulze
Sandra Woitge
Susanne Finze
Wolfram Mittelmeier
Rainer Bader
author_sort Tobias Lindner
collection DOAJ
description Due to their profession and the tasks it entails, soldiers are exposed to high levels of physical activity and strain. This can result in overexertion and pain in the locomotor system, partly caused by carrying items of equipment. The aim of this study was to analyse the extent of muscle activity in the lower extremities caused by carrying specific items of equipment. For this purpose, the activity of selected groups of muscles caused by different items of equipment (helmet, carrying strap, backpack, and rifle) in the upper and lower leg was measured by recording dynamic surface electromyograms. Electrogoniometers were also used to measure the angle of the knee over the entire gait cycle. In addition to measuring muscle activity, the study also aimed to determine out what influence increasing weight load has on the range of motion (ROM) of the knee joint during walking. The activity of recorded muscles of the lower extremity, that is, the tibialis anterior, peroneus longus, gastrocnemius lateralis, gastrocnemius medialis, rectus femoris, and biceps femoris, was found to depend on the weight of the items of equipment. There was no evidence, however, that items of equipment weighing a maximum of 34% of their carrier’s body weight had an effect on the ROM of the knee joint.
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spelling doaj-art-39d2d80e5ae944dba7223443794cd4f62025-02-03T05:44:47ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/976513976513The Effect of the Weight of Equipment on Muscle Activity of the Lower Extremity in SoldiersTobias Lindner0Christoph Schulze1Sandra Woitge2Susanne Finze3Wolfram Mittelmeier4Rainer Bader5Department of Orthopaedics, University Medicine Rostock, Doberaner Straße 142, 18057 Rostock, GermanyDepartment of Orthopaedics, University Medicine Rostock, Doberaner Straße 142, 18057 Rostock, GermanyDepartment of Orthopaedics, University Medicine Rostock, Doberaner Straße 142, 18057 Rostock, GermanyDepartment of Orthopaedics, University Medicine Rostock, Doberaner Straße 142, 18057 Rostock, GermanyDepartment of Orthopaedics, University Medicine Rostock, Doberaner Straße 142, 18057 Rostock, GermanyDepartment of Orthopaedics, University Medicine Rostock, Doberaner Straße 142, 18057 Rostock, GermanyDue to their profession and the tasks it entails, soldiers are exposed to high levels of physical activity and strain. This can result in overexertion and pain in the locomotor system, partly caused by carrying items of equipment. The aim of this study was to analyse the extent of muscle activity in the lower extremities caused by carrying specific items of equipment. For this purpose, the activity of selected groups of muscles caused by different items of equipment (helmet, carrying strap, backpack, and rifle) in the upper and lower leg was measured by recording dynamic surface electromyograms. Electrogoniometers were also used to measure the angle of the knee over the entire gait cycle. In addition to measuring muscle activity, the study also aimed to determine out what influence increasing weight load has on the range of motion (ROM) of the knee joint during walking. The activity of recorded muscles of the lower extremity, that is, the tibialis anterior, peroneus longus, gastrocnemius lateralis, gastrocnemius medialis, rectus femoris, and biceps femoris, was found to depend on the weight of the items of equipment. There was no evidence, however, that items of equipment weighing a maximum of 34% of their carrier’s body weight had an effect on the ROM of the knee joint.http://dx.doi.org/10.1100/2012/976513
spellingShingle Tobias Lindner
Christoph Schulze
Sandra Woitge
Susanne Finze
Wolfram Mittelmeier
Rainer Bader
The Effect of the Weight of Equipment on Muscle Activity of the Lower Extremity in Soldiers
The Scientific World Journal
title The Effect of the Weight of Equipment on Muscle Activity of the Lower Extremity in Soldiers
title_full The Effect of the Weight of Equipment on Muscle Activity of the Lower Extremity in Soldiers
title_fullStr The Effect of the Weight of Equipment on Muscle Activity of the Lower Extremity in Soldiers
title_full_unstemmed The Effect of the Weight of Equipment on Muscle Activity of the Lower Extremity in Soldiers
title_short The Effect of the Weight of Equipment on Muscle Activity of the Lower Extremity in Soldiers
title_sort effect of the weight of equipment on muscle activity of the lower extremity in soldiers
url http://dx.doi.org/10.1100/2012/976513
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