The effect of frontpacks, shoulder bags and handheld bags on 3D back shape and posture in young university students: an ISIS2 study

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Abstract

Background: Students at school and university settings have been shown to carry heavy loads in a variety of pack systems. Both type and mode of load carriage have been shown to cause significant postural adaptations that can lead to injuries in the shoulder, arms, hands and back. Whilst backpacks have been well researched, there is a paucity of literature on the effects of frontpacks, shoulder bags and hand-held bags on 3D posture and back shape. Objective: The objective of this study was to evaluate the effect of carrying three different types of bag (shoulder, front and handheld), each containing a load of 15% body weight. Materials: The Integrated Shape Imaging System 2 (ISIS 2) was used to evaluate 3 D back shape and posture. Participants: The study involved twenty-five university students. A repeated measures design was used to record the effects of four conditions using no load (reference), a frontpack, a shoulder bag and a handheld bag. Measurements with ISIS 2 were taken 5 minutes post loading. All of the conditions were randomised in an attempt to offset any order effects. Results showed an increase in extension and lumber lordosis angles for the front bag (P<0.001) and an increase in flexion and reduced lumber lordosis in the shoulder and hand held bags (p<0.05). Kyphosis curves were also significantly increased in the hand held bag (p<0.006). Right unilateral load carriage also demonstrated the greatest right volumetric asymmetry. Discussion: Bilateral front carriage as supported by previous literature produces a symmetrical shift away from the load. Unilateral carriage however produces an asymmetrical deviation away from the load which results in significant postural deviations and adaptations. Conclusion: Frontbags may be more suitable for load carriage within the young adult student population as they produce a symmetrical postural deviation in one plane in response to load. The shoulder and handheld bags produce postural deviations in all planes which may cause adverse stress and strain on spinal structures and ultimately lead to pain and progressive postural scoliosis.
Original languageEnglish
Title of host publicationResearch into spinal deformities 8
EditorsTomasz Kotwiki, Theodoros B Grivas
PublisherIOS Press
Volume17
ISBN (Print)9781614990673
DOIs
Publication statusPublished - 2012

Publication series

NameStudies in Health Technology and Informatics; 176

Fingerprint

Posture
Students
Hand
Lordosis
Kyphosis
Scoliosis
Young Adult
Arm
Body Weight
Pain
Population

Cite this

Bettany-Saltikov, J. A., & Cole, L. (2012). The effect of frontpacks, shoulder bags and handheld bags on 3D back shape and posture in young university students: an ISIS2 study. In T. Kotwiki, & T. B. Grivas (Eds.), Research into spinal deformities 8 (Vol. 17). (Studies in Health Technology and Informatics; 176). IOS Press. https://doi.org/10.3233/978-1-61499-067-3-117
Bettany-Saltikov, Josette A ; Cole, L. / The effect of frontpacks, shoulder bags and handheld bags on 3D back shape and posture in young university students: an ISIS2 study. Research into spinal deformities 8. editor / Tomasz Kotwiki ; Theodoros B Grivas. Vol. 17 IOS Press, 2012. (Studies in Health Technology and Informatics; 176).
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Bettany-Saltikov, JA & Cole, L 2012, The effect of frontpacks, shoulder bags and handheld bags on 3D back shape and posture in young university students: an ISIS2 study. in T Kotwiki & TB Grivas (eds), Research into spinal deformities 8. vol. 17, Studies in Health Technology and Informatics; 176, IOS Press. https://doi.org/10.3233/978-1-61499-067-3-117

The effect of frontpacks, shoulder bags and handheld bags on 3D back shape and posture in young university students: an ISIS2 study. / Bettany-Saltikov, Josette A; Cole, L.

Research into spinal deformities 8. ed. / Tomasz Kotwiki; Theodoros B Grivas. Vol. 17 IOS Press, 2012. (Studies in Health Technology and Informatics; 176).

Research output: Chapter in Book/Report/Conference proceedingChapterResearch

TY - CHAP

T1 - The effect of frontpacks, shoulder bags and handheld bags on 3D back shape and posture in young university students: an ISIS2 study

AU - Bettany-Saltikov, Josette A

AU - Cole, L.

PY - 2012

Y1 - 2012

N2 - Background: Students at school and university settings have been shown to carry heavy loads in a variety of pack systems. Both type and mode of load carriage have been shown to cause significant postural adaptations that can lead to injuries in the shoulder, arms, hands and back. Whilst backpacks have been well researched, there is a paucity of literature on the effects of frontpacks, shoulder bags and hand-held bags on 3D posture and back shape. Objective: The objective of this study was to evaluate the effect of carrying three different types of bag (shoulder, front and handheld), each containing a load of 15% body weight. Materials: The Integrated Shape Imaging System 2 (ISIS 2) was used to evaluate 3 D back shape and posture. Participants: The study involved twenty-five university students. A repeated measures design was used to record the effects of four conditions using no load (reference), a frontpack, a shoulder bag and a handheld bag. Measurements with ISIS 2 were taken 5 minutes post loading. All of the conditions were randomised in an attempt to offset any order effects. Results showed an increase in extension and lumber lordosis angles for the front bag (P<0.001) and an increase in flexion and reduced lumber lordosis in the shoulder and hand held bags (p<0.05). Kyphosis curves were also significantly increased in the hand held bag (p<0.006). Right unilateral load carriage also demonstrated the greatest right volumetric asymmetry. Discussion: Bilateral front carriage as supported by previous literature produces a symmetrical shift away from the load. Unilateral carriage however produces an asymmetrical deviation away from the load which results in significant postural deviations and adaptations. Conclusion: Frontbags may be more suitable for load carriage within the young adult student population as they produce a symmetrical postural deviation in one plane in response to load. The shoulder and handheld bags produce postural deviations in all planes which may cause adverse stress and strain on spinal structures and ultimately lead to pain and progressive postural scoliosis.

AB - Background: Students at school and university settings have been shown to carry heavy loads in a variety of pack systems. Both type and mode of load carriage have been shown to cause significant postural adaptations that can lead to injuries in the shoulder, arms, hands and back. Whilst backpacks have been well researched, there is a paucity of literature on the effects of frontpacks, shoulder bags and hand-held bags on 3D posture and back shape. Objective: The objective of this study was to evaluate the effect of carrying three different types of bag (shoulder, front and handheld), each containing a load of 15% body weight. Materials: The Integrated Shape Imaging System 2 (ISIS 2) was used to evaluate 3 D back shape and posture. Participants: The study involved twenty-five university students. A repeated measures design was used to record the effects of four conditions using no load (reference), a frontpack, a shoulder bag and a handheld bag. Measurements with ISIS 2 were taken 5 minutes post loading. All of the conditions were randomised in an attempt to offset any order effects. Results showed an increase in extension and lumber lordosis angles for the front bag (P<0.001) and an increase in flexion and reduced lumber lordosis in the shoulder and hand held bags (p<0.05). Kyphosis curves were also significantly increased in the hand held bag (p<0.006). Right unilateral load carriage also demonstrated the greatest right volumetric asymmetry. Discussion: Bilateral front carriage as supported by previous literature produces a symmetrical shift away from the load. Unilateral carriage however produces an asymmetrical deviation away from the load which results in significant postural deviations and adaptations. Conclusion: Frontbags may be more suitable for load carriage within the young adult student population as they produce a symmetrical postural deviation in one plane in response to load. The shoulder and handheld bags produce postural deviations in all planes which may cause adverse stress and strain on spinal structures and ultimately lead to pain and progressive postural scoliosis.

U2 - 10.3233/978-1-61499-067-3-117

DO - 10.3233/978-1-61499-067-3-117

M3 - Chapter

SN - 9781614990673

VL - 17

T3 - Studies in Health Technology and Informatics; 176

BT - Research into spinal deformities 8

A2 - Kotwiki, Tomasz

A2 - Grivas, Theodoros B

PB - IOS Press

ER -

Bettany-Saltikov JA, Cole L. The effect of frontpacks, shoulder bags and handheld bags on 3D back shape and posture in young university students: an ISIS2 study. In Kotwiki T, Grivas TB, editors, Research into spinal deformities 8. Vol. 17. IOS Press. 2012. (Studies in Health Technology and Informatics; 176). https://doi.org/10.3233/978-1-61499-067-3-117