Browse > Article

Comparison of Muscle Performance of the Lumbar Region and Head Alignment According to the Length of Sitting Time  

Park, Yong-Nam (Department of Physical Therapy, Daewon college)
Bae, Young-Sook (Department of Physical Therapy, College of Health Science, Gachon University)
Publication Information
The Journal of Korean Physical Therapy / v.25, no.6, 2013 , pp. 386-392 More about this Journal
Abstract
Purpose: This study aimed to verify the impact of the time that the sitting posture is maintained on changes in muscle performance and head alignment. Methods: The subjects of this study were healthy adults aged between 20 and 30 years. Ninety-three subjects participated in this study (male: 57, female: 36). The subjects were divided into a one-hour group, a two-hour group, and a three-hour group. All the subjects adjusted the height of their chair to a comfortable position and then seat for one, two, or over three hours. Both prior to and after the experiment, the muscle performance (muscle strength, endurance, and flexibility) of the subjects was measured. Results: In the 2-hours and 3-hour group, muscle strength, flexibility and endurance reduced significantly before and after the study, and the head alignment significantly changed. Conclusion: Thease findings showed that sitting continuously for longer than two hours decreases muscle strength, endurance, and flexibility. A flexed posture affects the muscle performance of the lumbar region and may result in problematic postures, such as a forward head position.
Keywords
Sitting time; Muscle performance; Head alignment; Posture;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Kendall FP, McCreary EK, Provance PG, et al. Romani WA: Muscles: testing and function with the posture and pain 5th ed. Lippincott Williams & Wilkins, Baltimore, 2005; 60-63.
2 Kwon JW, Nam SH, Choi YW et al. The effect of different head position in sitting on hean/shoulder posture and muscle activity. J Kor Soc Phys Ther . 2013;25(4): 271-23.   DOI
3 Kristjansson E. The cervical spine and proprioception. In: Boyling J, Jull G, editors Grieve,s modern manual therapy: the vertebral column. 3rd ed. Edinburgh. Churchill Libingstone. 2005:243-56.
4 Heikkila H, Wenngren B. Cervicocephalic kinesthetic sensibility, active range of cervical motion, and oculomotor function in patients with whiplash injury. Arch phys med and reha. 1998;79(9):1089-94.   DOI   ScienceOn
5 Kubo K, Kanehisa H, Fukunaga T. Effect of stretching training on the viscoelastic properties of human tendon structures in vivo. J Appl Physiol. 2002;92(2):16-22.
6 Han NM, Kim HD, Hwang JS et al. The utility of measuring paravertebral muscle function with 3D-newton. J Kor Soc Phys Ther. 2013;25(1):127-37.
7 Hong SM, Kweon MG, Park JW. A study on EMG activation changes of spinal stability muscle during forced respiratory meneuvers. J Kor Soc Phys Ther. 2013;25(3):143-48.   DOI
8 Alison SI, Brian CN, Janessa DM. Investigation of trunk muscle co-contraction and its association with low back pain development during prolonged sitting. J Electro & Kinesio. 2013; 23(4): 778-86.   DOI   ScienceOn
9 Owen N, Lesile E. Salmon J, et al. Environmental determinants of physical activity and sedentary behavior. Excer Sport Sci Rev. 2000; 28(4):153-58.
10 Van Dieen JH, Heijbolom P. Reproducibility of isometric trunk extension torque, trunk extensor endurance, and related electromyographic parameters in the context of their clinical applicability. J Orthop Res. 1996;14(1):139-43.   DOI
11 Mork PJ, Westgaard RH. Back posture and low back muscle activity in female computer workers: a field study. Clin Biomech. 2009;24(2):165-75.
12 O'Sullivan PB, Mitchell T, Bulich P et al. The relationship between posture and back muscle endurance in industrial workers with flexion-related low back pain. Manu Ther. 2006;11(4): 264-71.   DOI   ScienceOn
13 Kang SS, Goo BO. The effects of yaga lowback pain exercise and lumbar extensor muscle endurance exercise on chronic low back pain patients. J Kor Soc Phys Ther. 2012;24(2):107-12.
14 Rissanen A, Heliovarata M, Alaranta H et al. Does good trunk extensor performance protect against back-related work disability?. J R ehabil Med. 2002;34(2):62-6.
15 Mörl F, Bradl I. Lumbar posture and muscular activity while sitting during office work. J Electro and Kinesio. 2013;23(2):362-68.   DOI   ScienceOn
16 Solomonow M, Baratta RV, Zhou BH, et al. Muscular dysfunction elicited by creep of lumbar viscoelastic tissue. J Electro Kineso. 2003;13(4):381-96.   DOI   ScienceOn
17 Van Dieen JH, Heijbolom P. Reproducibility of isometric trunk extension torque, trunk extensor endurance, and related electromyographic parameters in the context of their clinical applicability. J Orthop Res. 1996;14(1):139-43.   DOI
18 Kim YJ, Park JW. The influence of shoes worth different heels on movement of lower limb joints during sit-to-stand. J Kor Soc Phys Ther. 2013; 25(2): 117-25.   DOI
19 Ko UM, Park S, Kim YJ, et al. Effects of lumbar position sense on swing chair in healthy adults. J Kor Soc Phys Ther. 2012;24(3):235-39.
20 Caneiro JP, O'sullivan P, Burnett A et al. The influence of different sitting postures on head/neck posture and muscle activity. Manu Ther. 2010;15(1): 54-60.   DOI   ScienceOn
21 Ainsworth BE, Haskell WL, White MC et al. Compendium of physical activities: an update of activity codes and MET intensities. Med Sci Sports Exerc. 2003;32(9S): S498-504.
22 Kisner C, Colby LA. Therapeutic exercise 5th ed: Foundation and techniques. Philadelphia. F.A.Davis Company. 2007:3-36.
23 Stephanie MG, Melinda LI, Cgarkes EM, et al. Beyond recreational physical activity: examining occupational and household activity, transportation activity, and sedentary behavior in relation to postmenopausal breast cancer risk. A J Pub Heal, 2010; 100(11): 2288-95.   DOI   ScienceOn
24 Andersson GB. Epidemiological features of chronic low-back pain. Lancet. 1999;354(178):581-85.   DOI   ScienceOn
25 Ortiz-Hernandez L, Tamez-Gozalez S, Martínez-Alcantara S, et al. Computer use increases the risk of musculoskeletal disorders among newspaper office workers. Arch Med Res. 2003;34(4):331-42.   DOI   ScienceOn
26 Gill KP, Callaghan MJ. The measurement of lumbar proprioception in individuals with and without low back pain. Spine. 1998; 18(11):371-77.
27 Rissanen A, Heliovaara M, Alaranta H, et al. Does good trunk extensor performance protect against back-related work disability? J Rehabil Med. 2002; 34(2):62-66.   DOI
28 Hwang DY, Park KS. Effects of sitting and standing posture on the compressive force at L5/S1 disc. J Human Eng Soc Kor. 1992;11(2):3-13.
29 Moore D, Drouin J, Gansneder B, Shultz S. The differential effects of fatigue on reflex response timing and amplitude in males and females. J Electro and Kinesio. 2002;12(5): 351-60.   DOI   ScienceOn
30 Williams R, Binkley J, Bloch R et al. Reliability of the modified-modified schober and double inclinometer methods for measuring lumbar flexion and extension. Phys Ther. 1993;73(1):33-44.
31 Owen N, Healy GN, Mathews CE, et al. Too much sitting: the population-health science of sedentary behavior. Exerc Sport Sci Rev. 2010; 38(3):352-56.