Comparison of gait properties during level walking and stair ascent and descent with varying loads
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Abstract
This study aimed to compare gait properties during level walking and during stair ascent and descent with varying loads. Fifteen healthy young men (mean age: 22.1 ± 1.6 years) walked while holding four different loads relative to each subject’s body mass (0, 20, 40 and 60% of body mass: BM) on their backs. Stance time, swing time, and double support times were selected as gait parameters. All parameters showed a maximal value during stair ascent and a minimum value during level walking. Stance and double support times increased significan- tly with each load during level walking and during stair ascent and descent. In conclusion, st- air ascent and descent creates more unstable movement than level walking regardless of the weight of the load. The effect of loads on gait increases with the weight of the load and becomes obvious once the load exceeds 60% of BM.
- Andriacchi, T.P., Andersson, G.B., Fermier, R.W., Stem, D. and Galante, J.O. (1980) A study of lower-limb me-chanics during stair-climbing. The Journal of Bone & Joint Surgery, 62, 749-757.
- Jevsevar, D.S., Riley, P.O., Hodge, W.A. and Krebs, D.E. (1993) Knee kinematics and kinetics during locomotor activities of daily living in subjects with knee arthroplasty and in healthy control subjects. Physical Therapy, 73, 229-238.
- Joeseph, J. and Watson, R. (1967) Telemetering electro-myography of muscles used in walking up and down stairs. Journal of Bone Joint Surgery, 49-B, 774-780.
- James, B. and Parker, A.W. (1989) Electromyography of stair locomotion in elderly men and women. Electro-myography and Clinical Neurophysiology, 29, 161-168.
- Zarrugh, M.Y. and Radcliffe, C.W. (1978) Predicting metabolic cost of level walking. European Journal of Applied Physiology, 38, 215-223.
- Hughes, A.L. and Goldman, R.F. (1970) Energy cost of “hard work”. Journal of Applied Physiology, 29, 570- 572.
- Ghori, G.M.U. and Luckwill, R.G. (1985) Responses of the lower limb to load carrying in walking man. European Journal Applied Physiology & Occupational Physiology, 54, 145-150.
- Goh, J.H., Thambyah, A. and Bose, K. (1998) Effects of varying backpack loads on peak forces in the lumbosacral spine during walking. Clinical Biomechanics, 13, 26-31.
- Singh, T. and Koh, M. (2009) Effects of backpack load position on spatiotemporal parameters and trunk forward lean. Gait & Posture, 29, 49-53.
- Harman, E., Han, K.H., Frykman, P., Johnson, M., Rus-sell, F. and Rosenstein, M. (1992) The effects on gait timing, kinetics and muscle activity of various loads car-ried on the back. Medicine & Science in Sports & Exer-cercise, 24, S129.
- Demura, T. and Demura, S. (2010) Relationship among gait parameters while walking with varying loads. Journal of Physiological Anthropology, 29, 29-34.
- Information center for building administration, Order for enforcement of the building standards act, 2008.
- Murray, M.P., Drought, A.B. and Kory, R.C. (1964) Walking patterns of normal men. Journal of Bone and Joint Surgery, 46, 335-360.
- Borghols, E.A.M. (1978) Influence of heavy weight car-rying on the cardiorespiratory system during exercise. European Journal of Applied Physiology, 38, 161-169.