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Biomechanical study of the influence of the weight of equipment on selected trunk muscles

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Overexertion and pain of the musculoskeletal system may occur partly owing to load application by the equipment. Both the weight of equipment and the duration of loading are relevant. The aim of the present study was to examine the extent of loading and resultant strain in the trunk muscles. Therefore, the trunk posture of soldiers and muscular activity in reaction to different equipment components (helmet, load-carrying equipment, gun and backpack) were evaluated. Electromyography was performed and a visual assessment of body axis was conducted based on standardised planar images. Data indicate that the activity of the trunk muscles examined (latissimus dorsi, trapezius and pectoralis major) is dependent on the weight and distribution of the equipment components. Activity in the trapezius muscle, for instance, was doubled during specific load application. Moreover, the method of carrying the rifle had a significant influence on the activity of the trapezius muscle (one-sided decrease of activity by 50%). Subjects were able to stabilise the body axis in the coronal plane through increased muscle activity, however, in the sagittal plane a compensatory ventral inclination of the body was observed. Uneven load distribution can lead to an irregular strain on the musculoskeletal system.
Słowa kluczowe
EN
PL
Rocznik
Strony
45--51
Opis fizyczny
Bibliogr. 16 poz., rys., tab., wykr.
Twórcy
autor
  • Department of Orthopaedics, University Medicine Rostock, Rostock, Germany
  • Bundeswehr Institute of Sports Medicine, Warendorf, Germany
autor
  • Department of Orthopaedics, University Medicine Rostock, Rostock, Germany
autor
  • Department of Orthopaedics, University Medicine Rostock, Rostock, Germany
  • Rostock Military Medical Centre, Rostock, Germany
autor
  • Institute for Biostatistics and Informatics in Medicine, University Medicine Rostock, Rostock, Germany
autor
  • Department of Orthopaedics, University Medicine Rostock, Rostock, Germany
  • Department of Orthopaedics, University Medicine Rostock, Rostock, Germany
autor
  • Department of Orthopaedics, University Medicine Rostock, Rostock, Germany
Bibliografia
  • [1] KAUFMAN K.R., BRODINE S., SHAFFER R., Military Training-Related Injuries: Surveillance, Research, and Prevention, Am. J. Prev. Med., 2000, Vol. 18(3S), 54–63.
  • [2] COWAN D.N., JONES B.H., ROBINSON J.R., Foot morphologic characteristics and risk of exercise-related injury, Arch. Fam. Med., 1993, Vol. 2, 773–777.
  • [3] COWAN D.N., JONES B.H., FRYKMAN P.N., POLLY D.W., HARMAN E.A., ROSENSTEIN R.M., ROSENSTEIN M.T., Lower limb morphology and risk of overuse injury among male infantry trainees, Med. Sci. Sports Exerc., 1996, Vol. 28, 945–952.
  • [4] KAUFMAN K.R., BRODINE S.K., SHAFFER R.A., JOHNSON C.W., CULLISON T.R., The relationship of foot structure and range of motion on musculoskeletal overuse injuries, Am. J. Sports Med., 1999, Vol. 27, 585–593.
  • [5] TAANILA H., SUNI J., PIHLAJAMÄKI H., MATTILA V.M., OHRANKÄMMEN O., VUORINEN P., PARKKARI J., Musculoskeletal disorders in physically active conscripts: a one-year follow-up study in the Finnish Defence Forces, BMC Muskuloskelet Disord., 2009, Vol. 10, 89.
  • [6] SCHULZE C., LINDNER T., SCHULZ K., FINZE S., KUNDT G., MITTELMEIER W., BADER R., The Influence in Airforce Soldiers through Wearing Certain Types of Army-Issue Footwear on Muscle Activity in the Lower Extremities, Open Orthop. J., 2011, Vol. 5, 219–223.
  • [7] KNAPIK J., HARMAN E., REYNOLDS K., Load carriage using packs: a review of physiological, biomechanical and medical aspects, Appl. Ergon., 1996, Jun, Vol. 27(3), 207–216.
  • [8] MASTALERZ A., PALCZEWSKA I., The influence of trunk inclination on muscle activity during sitting on forward inclined seats, Acta of Bioengineering and Biomechanics, 2010, Vol. 12(4), 19–24.
  • [9] BOBET J., NORMAN R.W., Effects of load placement on back muscle activity in load carriage, Eur. J. Appl. Physiol., 1984, Vol. 53, 71–75.
  • [10] SCHULZE C., SCHULZ K., WOITGE S., LINDNER T., Einfluss von Ausrüstungsgegenständen auf die muskuläre Aktivierung, das Gangbild und die Körperhaltung von Soldaten, Wehrmedizinische Monatsschrift, 2012, Vol. 1, 7–10.
  • [11] AL-KHABBAZ Y.S.S.M., SHIMADA T., HASEGAWA M., The effect of backpack heaviness on trunk-lower extremity muscle activities and trunk posture, Gait & Posture, 2008, Vol. 28, 297–302.
  • [12] Standards for reporting EMG data, J. Electromyogr. Kinesiol., 1999, Feb, 9(1), III–IV
  • [13] HERMENS H.J., FRERIKS B., DISSELHORST-KLUG C., RAU G., Development of recommendations for SEMG sensors and sensor placement procedures. J. Electromyogr. Kinesiol., 2010, Oct, Vol. 10, 361–374.
  • [14] SCHIEBLER T.H. (ed.), Anatomie, Berlin, Heidelberg, New York, Springer-Verlag, 2005, 241–374, ISBN: 3-540-21966-8.
  • [15] PERRY J., Ganganalyse – Norm und Pathologie des Gehens, München, Jena, Urban & Fischer, 2003, 78-86; ISBN: 3-437-47110-4.
  • [16] ATTWELLS R.L., BIRRELL S.A., HOOPER R.H., MANSFIELD N.J., Influence of carrying heavy loads on soldiers’posture, movements and gait, Ergonomics, 2006, Nov. 15, Vol. 49(14), 1527–1537.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-4c3b02e0-f836-4663-8364-5d7f23913ab9
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