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http://dx.doi.org/10.5103/KJSB.2017.27.1.35

The Effect of Gaze Angle on Muscle Activity and Kinematic Variables during Treadmill Walking  

Kim, Bo-Suk (Department of Physical Education, Graduate School of Kyungpook National University)
Jung, Jae-Hu (Department of Physical Education, Graduate School of Kyungpook National University)
Chae, Woen-Sik (Department of Physical Education, Kyungpook National University)
Publication Information
Korean Journal of Applied Biomechanics / v.27, no.1, 2017 , pp. 35-43 More about this Journal
Abstract
Objective: The purpose of this study was to determine how gaze angle affects muscle activity and kinematic variables during treadmill walking and to offer scientific information for effective and safe treadmill training environment. Method: Ten male subjects who have no musculoskeletal disorder were recruited. Eight pairs of surface electrodes were attached to the right side of the body to monitor the upper trapezius (UT), rectus abdominis (RA), erector spinae (ES), rectus femoris (RF), bicep femoris (BF), tibialis anterior (TA), medialis gastrocnemius (MG), and lateral gastrocnemius (LG). Two digital camcorders were used to obtain 3-D kinematics of the lower extremity. Each subject walked on a treadmill with a TV monitor at three different heights (eye level; EL, 20% above eye level; AE, 20% below eye level; BE) at speed of 5.0 km/h. For each trial being analyzed, five critical instants and four phases were identified from the video recording. For each dependent variable, one-way ANOVA with repeated measures was used to determine whether there were significant differences among three different conditions (p<.05). When a significant difference was found, post hoc analyses were performed using the contrast procedure. Results: This study found that average and peak IEMG values for EL were generally smaller than the corresponding values for AE and BE but the differences were not statically significant. There were also no significant changes in kinematic variables among three different gaze angles. Conclusion: Based on the results of this study, gaze angle does not affect muscle activity and kinematic variables during treadmill walking. However, it is interesting to note that walking with BE may increase the muscle activity of the trapezius and the lower extremity. Moreover, it may hinder proper dorsiflexion during landing phase. Thus, it seems to reasonable to suggest that inappropriate gaze angle should be avoided in treadmill walking. It is obvious that increased walking speed may cause a significant changes in biomechanical parameters used in this study. It is recommended that future studies be conducted which are similar to the present investigation but using different walking speed.
Keywords
Gait; Gaze angle; Muscle activity; Kinematic variables;
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1 Yoon, N. S., Yi, K. O., Kim, J. Y., Mun, M. S. & Yang, G. T. (2000). Comparison analysis of the angle vriation patterns and DRM on treadmill walking by slope. Korean Alliance of Health Physical Education Recreation and Dance, 39(1), 569-579.
2 Abdel-Aziz, Y., & Karara, H. M. (1971). Direct linear transformation from comparator coordinates in object-space coordinates in object-space coordinates in close range photogrammetry. Proceedings of the ASP Symposium of Close-Range Photogrammetry. Urbana, IL.
3 Ahn, S. G. (1997). Kinematic analysis of gaits according to kinds of shoe heel height. Unpublished master dissertation, Jeju National University.
4 An, S. Y., Kim, S. B. & Lee, K. K. (2007). A comparative study of characters of muscle activity in lower limb and gait pattern on type of heel rockers. Korean Journal of Sport Biomechanics, 17(1), 111-119.   DOI
5 Auvinet, B., Berrut, G., Touzard, C., Moutel, L., Collet, N., Chaleil, D. & Barrey, E. (2002). Reference data for normal subjects obtained with an accelerometric device. Gait & Posture, 16(2), 124-134.   DOI
6 Bang, H. H. (2007). Implementation of combined controller board design for inverter and LCD-TV of treadmill. Unpublished master dissertation, Inha University.
7 Bergmann, G., Graichen, F. & Rohlmann, A. (1993). Hip joint loading during walking and running: measured in two patients. Journal of Biomechanics, 26(8), 969-990.   DOI
8 Burnfield, M. (2010). Gait analysis: normal and pathological function. Journal of Sports Science and Medicine, 9, 353.
9 Chae, W. S. (2006). The effects of wearing roller shoes on ground reaction force characteristics during walking. Korean Journal of Sport Biomechanics, 16(1), 101-108.   DOI
10 Chung, C. Y., Park, M. S., Choi, I. H., Cho, T. J., Yoo, W. J. & Kim, J. Y. (2005). Three dimensional gait analysis in normal Korean: a preliminary report. Journal of the Korean Orthopaedic Association, 40(1), 83-88.   DOI
11 Cipriani, D. J., Armstrong, C. W. & Gaul, S. (1995). Backward walking at three levels of treadmill inclination: an electromygraphic and kinematic analysis. Journal of Orthopaedic Sports Physical Therapy, 22(3), 95-102.   DOI
12 Cordo, P. J. & Flanders, M. (1990). Time-dependent effects of kinesthetic input. Journal of Motor Behavior, 22(1), 45-65.   DOI
13 Eltayeb, S., Staal, J. B., Hassan, A. & de Bie, R. A. (2009). Work related risk factors for neck, shoulder and arms complaints: acohart study among dutch computer office workers. Journal of Occupational Rehabilitation, 19(4), 315-322.   DOI
14 Gerr, F., Monteilh, C. P. & Marcus, M. (2006). Keyboard use and musculoskeletal outcomes among computer users. Journal of Occupational Rehabilitation, 16(3), 259-271.   DOI
15 Jung, C. J. & Lee, Y. S. (2003). The effect on extension muscle power of waist by taping during exercise. The Korean Journal of Physical Education, 42(6), 849-855.
16 McArdle, W. D., Katch, I. F. & Katch, L. V. (2001). Exercise physiology: energy, nutrition and human performance. 5th Ed. Williams and Wilkins, Lippincot.
17 Ortiz-Hernandez, L., Tamez-Gonzalez, S., Martinez-Alcantara, S. & Mendez-Ramirez, I. (2003). Computer use increases the risk of musculoskeletal disorders among newspaper office workers. Archives of Medicine Research, 34(4), 331-342.   DOI
18 Neumann, D. A. (2013). Kinesiology of the musculoskeletal system: foundations for rehabilitation. Elsevier Health Sciences.
19 Nigg, B. M., De Boer, R. W. & Fisher, V. (1995). A kinematic comparison of overground and treadmill running. Medicine and Science in Sports and Exercise, 27(1), 98-105.
20 Nigg, B., Hintzen, S. & Ferber, R. (2006). Effect of an unstable shoe construction on lower extremity gait characteristics. Clinical Biomechanics, 21(1), 82-88.   DOI
21 Ounpuu, S. (1990). The biomechanics of running: a kinematic and kinetic analysis. Instructional Course Lectures, 39, 305-318.
22 Park, H. J., Oh, D. W., Kim, S. Y. & Choi, J. D. (2011). Effectiveness of community-based ambulation training for walking function of post-stroke hemiparesis: a randomized controlled pilot trial. Clinical Rehabilitation, 25(5), 451-459.   DOI
23 Ralston, H. J. (1965). Effects of immobilization of various body segments on the energy cost of human locomotion. Ergonomics, 8, 54-60.
24 Turner, D. E., Helliwell, P. S., Siegel, K. L. & Woodburn, J. (2008). Biomechanics of the foot in rheumatoid arthritis: identifying abnormal function and the factors associated with localised disease 'impact'. Clinical Biomechanics, 23(1), 93-100.   DOI
25 U. S. Department of Health and Human Service. (1993). Selected topics in surface electromyography for use in the occupational setting: expert perspectives. (DHHS Publication No. 91-100). Washington, DC: U.S. Government Printing Office.