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Volume 12, Issue 2 (Iranian Journal of Ergonomics 2024)
Iran J Ergon 2024, 12(2): 80-89 |
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Aghahasni Mahabadi F, Farjad Pezeshk A, Yousefi M. Comparison of Common Mechanisms in the Design of Hip Belts in Backpacks on the Coordination between Trunk and Hip Segments during Walking. Iran J Ergon 2024; 12 (2) :80-89
URL: http://journal.iehfs.ir/article-1-1027-en.html
URL: http://journal.iehfs.ir/article-1-1027-en.html
1- Faculty of Physical Education and Sports Sciences, Sports Sciences Department, University of Birjand, Birjand, Iran
2- Faculty of Physical Education and Sports Sciences, Sports Sciences Department, University of Birjand, Birjand, Iran ,Abbas.Farjad@Birjand.ac.ir
2- Faculty of Physical Education and Sports Sciences, Sports Sciences Department, University of Birjand, Birjand, Iran ,
Abstract: (1164 Views)
Objectives: Using a backpack with a hip belt limits hip movements and prevents disruption in hip and trunk coordination. Therefore, this study aimed to compare the effect of common mechanisms in the design of hip belts in mountaineering backpacks on the coordination between trunk and pelvis organs during walking.
Methods: This semi-experimental research was conducted on 16 men. Three types of backpacks with different hip belts were used. Participants carried backpacks with a load of 13 kg. The continuous relative phase and its variability were used to analyze the coordination. Descriptive statistics of mean and standard deviation and analysis of variance with repeated measures were used to compare variables in four conditions.
Results: According to the results, there was a difference between the level of coordination in two conditions of without a backpack and a normal backpack, with the normal backpack showing a significant decrease in coordination (P<0.05). The results also indicated that the variability in coordination increased after using backpacks with movable hip belts and cross frames compared to walking without a backpack (P<0.05).
Conclusion: Based on the existing findings, backpacks with a cross-movable frame maintain the antiphase coordination between the trunk and pelvis by allowing freedom of movement in these two organs. It also creates more flexibility by increasing variability in coordination.
Methods: This semi-experimental research was conducted on 16 men. Three types of backpacks with different hip belts were used. Participants carried backpacks with a load of 13 kg. The continuous relative phase and its variability were used to analyze the coordination. Descriptive statistics of mean and standard deviation and analysis of variance with repeated measures were used to compare variables in four conditions.
Results: According to the results, there was a difference between the level of coordination in two conditions of without a backpack and a normal backpack, with the normal backpack showing a significant decrease in coordination (P<0.05). The results also indicated that the variability in coordination increased after using backpacks with movable hip belts and cross frames compared to walking without a backpack (P<0.05).
Conclusion: Based on the existing findings, backpacks with a cross-movable frame maintain the antiphase coordination between the trunk and pelvis by allowing freedom of movement in these two organs. It also creates more flexibility by increasing variability in coordination.
Type of Study: Research |
Subject:
Ergonomics in Design
Received: 2024/07/3 | Accepted: 2024/07/31 | ePublished: 2024/07/31
Received: 2024/07/3 | Accepted: 2024/07/31 | ePublished: 2024/07/31
References
1. Leeworthy VR, Vernon R, Wiley PC. National survey on recreation and the environment (NSRE) 2000. Preliminary estimates from versions. 2001:1-6.
2. Hong Y, Cheung CK. Gait and posture responses to backpack load during level walking in children. Gait & posture. 2003;17(1):28-33. [DOI:10.1016/S0966-6362(02)00050-4] [PMID]
3. Dale JC. School backpacks: preventing injuries. J Pediatr Health Care. 2004 ;18(5):264-6.
https://doi.org/10.1016/j.pedhc.2004.06.007 [DOI:10.1016/S0891-5245(04)00171-3] [PMID]
4. Hadid A, Gozes G, Atoon A, Gefen A, Epstein Y. Effects of an improved biomechanical backpack strap design on load transfer to the shoulder soft tissues. J Biomech. 2018;76:45-52. [DOI:10.1016/j.jbiomech.2018.05.016] [PMID]
5. Talbott NR. The effect of the weight, location and type of backpack on posture and postural stability of children. University of Cincinnati. 2005.
6. Mououdi MA, Akbari J, Mousavinasab SN. Ergonomic design of school backpack by using anthropometric measurements for primary school students (6-12 years). International Journal of Industrial Ergonomics. 2018;67:98-103. [DOI:10.1016/j.ergon.2018.05.001]
7. Abdelraouf OR, Hamada HA, Selim A, Shendy W, Zakaria H. Effect of backpack shoulder straps length on cervical posture and upper trapezius pressure pain threshold. J Phys Ther Sci. 2016;28(9):2437-40. [DOI:10.1589/jpts.28.2437] [PMID] []
8. Muslim E, Moch BN, Rasyad BA, Risya PA. The ergonomics design of the military backpack for Indonesian national soldiers using virtual environment model. IOP Conf Ser Mater Sci Eng. 2019 ; 508( 1): 012108. [DOI:10.1088/1757-899X/508/1/012108]
9. Mansourian M, Ghasemi MS, Forough B, Dehghan N. Evaluating the effect of an ergonomically designed backpack on foot pressure and comfort perceived by users.[In Persian]. Iran Occupational Health. 2018;15(6): 35-45.
10. Mahachandra M, Prastawa H, Rosyada ZF, Fatmala T. Ergonomics redesign of mountain backpack for female hikers in Indonesia. InProceedings of the International Conference on Industrial Engineering and Operations Management. 2021:1633-39. [DOI:10.46254/SA02.20210630]
11. Knapik JJ, Reynolds K, Orr R, Pope R. Load carriage-related paresthesias: Part 1: Rucksack palsy and digitalgia paresthetica. J Spec Oper Med. 2016;16(4):74-9. [DOI:10.55460/7HEK-VMKV] [PMID]
12. Sharpe SR, Holt KG, Saltzman E, Wagenaar RC. Effects of a hip belt on transverse plane trunk coordination and stability during load carriage. J Biomech. 2008;41(5):968-76. [DOI:10.1016/j.jbiomech.2007.12.018] [PMID]
13. Oberhofer K, Wettenschwiler PD, Singh N, Ferguson SJ, Annaheim S, Rossi RM, Lorenzetti S. The influence of backpack weight and hip belt tension on movement and loading in the pelvis and lower limbs during walking. Appl Bionics Biomech. 2018;2018(1):4671956. [DOI:10.1155/2018/4671956] [PMID] []
14. Lafiandra M, Harman E. The distribution of forces between the upper and lower back during load carriage. Med Sci Sports Exerc. 2004;36(3):460-7. [DOI:10.1249/01.MSS.0000117113.77904.46] [PMID]
15. Liu SR, Wu T, Dai XQ. Effects of Straps and Movements on the Pressure Distribution Induced by a Backpack. Journal of Fiber Bioengineering and Informatics. 2019;12(4):205-11. [DOI:10.3993/jfbim00331]
16. Pierrynowski MR, Winter DA, Norman RW. Metabolic measures to ascertain the optimal load to be carried by man. Ergonomics. 1981;24(5):393-9. [DOI:10.1080/00140138108924861] [PMID]
17. Cheng CH, Lin KH, Lin JJ, Wang JL. Effect of movement speed on cervical muscle activation pattern in healthy adults: voluntary response index analysis. J Biomech . 2007;40(2):S413. [DOI:10.1016/S0021-9290(07)70408-6]
18. Stokes VP, Andersson C, Forssberg H. Rotational and translational movement features of the pelvis and thorax during adult human locomotion.J Biomech. 1989;22(1):43-50. [DOI:10.1016/0021-9290(89)90183-8] [PMID]
19. Tazji MK, Ghale-Beig AV, Sadeghi H, Koumantakis GA, Chrysagis N, Abbasi A. Effects of Running-induced Fatigue on the Trunk-pelvis-hip Coordination Variability During Treadmill Running at Different Speeds. J Musculoskelet Neuronal Interact. 2023;23(2):189-95.
20. Gardner TB, Hill DR. Illness and injury among long-distance hikers on the Long Trail, Vermont.Wilderness Environ Med. 2002;13(2):131-4. [DOI:10.1580/1080-6032(2002)013[0131:IAIALD]2.0.CO;2]
21. Holewijn M. Physiological strain due to load carrying. Eur J Appl Physiol Occup Physiol. 1990;61:237-45. [DOI:10.1007/BF00357606] [PMID]
22. Stalcup P, Spano S. The Epidemiology and Medical Morbidity of Long-Distance Backpackers in the Sierra Nevada. Wilderness Environ Med. 2017;28(4):367-8. [DOI:10.1016/j.wem.2017.08.015]
23. Li SS, Chan OH, Ng TY, Kam LH, Ng CY, Chung WC, Chow DH. Effects of backpack and double pack loads on postural stability. Ergonomics. 2019;62(4):537-47. [DOI:10.1080/00140139.2018.1552764] [PMID]
24. Korovessis P, Koureas G, Zacharatos S, Papazisis Z. Backpacks, back pain, sagittal spinal curves and trunk alignment in adolescents: a logistic and multinomial logistic analysis. Spine. 2005;30(2):247-55. [DOI:10.1097/01.brs.0000150505.59690.1b] [PMID]
25. Buffinton S, Hilger T, Tiblas M, inventors; Deuter Sport GmbH, assignee. Backpack comprising a frame structure for stretching a netting member concave across the back wall. United States patent US 9,271,560. 2016.
26. Thomas AT. Effects of Pack Weight on Endurance of Long-distance Hikers.2013.
27. Golriz S, Hebert JJ, Bo Foreman K, Walker BF. The effect of shoulder strap width and load placement on shoulder-backpack interface pressure. Work. 2017;58(4):455-61. [DOI:10.3233/WOR-172651] [PMID]
28. Lamoth CJ, Meijer OG, Wuisman PI, van Dieën JH, Levin MF, Beek PJ. Pelvis-thorax coordination in the transverse plane during walking in persons with nonspecific low back pain. Spine. 2002;27(4):E92-9. [DOI:10.1097/00007632-200202150-00016] [PMID]
29. Stanford C, Francis P, Chambers H. Changes in upper body and arm kinematics while carrying symmetrical and assymetrical backpack loads. InISBS-Conference Proceedings Archive. 2002.
30. Shojaei I, Suri C, Bazrgari B. The effects of backpack type on lumbo-pelvic coordination during trunk bending and return tasks. Ergonomics. 2018;61(10):1355-63. [DOI:10.1080/00140139.2018.1489070] [PMID]
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