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Comparison of Lower Extremity Kinematics and Kinetics during Downhill and Valley-shape Combined Slope Walking
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 Title & Authors
Comparison of Lower Extremity Kinematics and Kinetics during Downhill and Valley-shape Combined Slope Walking
Jeong, Jiyoung; Shin, Choongsoo S.;
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Objective: The purpose of this study was to determine the knee and ankle joint kinematics and kinetics by comparing downhill walking with valley-shape combined slope walking. Method: Eighteen healthy men participated in this study. A three-dimensional motion capture system equipped with eight infrared cameras and a synchronized force plate, which was embedded in the sloped walkway, was used. Obtained kinematic and kinetic parameters were compared using paired two-tailed Student's t-tests at a significance level of 0.05. Results: The knee flexion angle after the mid-stance phase, the mean peak knee flexion angle in the early swing phase, and the ankle mean peak dorsiflexion angle were greater during downhill walking compared with valley-shape combined slope walking (p < 0.001). Both the mean peak vertical ground reaction force (GRF) in the early stance phase and late stance phase during downhill walking were smaller than those values during valley-shape combined slope walking. (p = 0.007 and p < 0.001, respectively). The mean peak anterior GRF, appearing right after toe-off during downhill walking, was also smaller than that of valley-shape combined slope walking (p = 0.002). The mean peak knee extension moment and ankle plantar flexion moment in late stance phase during downhill walking were significantly smaller than those of valley-shape combined slope walking (p = 0.002 and p = 0.015, respectively). Conclusion: These results suggest that gait strategy was modified during valley-shape combined slope walking when compared with continuous downhill walking in order to gain the propulsion for lifting the body up the incline for foot clearance.
Downhill walking;Valley-shape combined slope walking;Kinematics;Kinetics;Lower extremity;
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Boulware, D., Forgey, W. & Martin, W. (2003). Medical risks of wilderness hiking. The American Journal of Medicine, 114(4), 288-293. crossref(new window)

Dyrby, C. O. & Andriacchi, T. P. (2004). Secondary motions of the knee during weight bearing and non-weight bearing activities. Journal of Orthopaedic Research, 22(4), 794-800. crossref(new window)

Favre, J., Hayoz, M., Erhart-Hledik, J. C. & Andriacchi, T. P. (2012). A neural network model to predict knee adduction moment during walking based on ground reaction force and anthropometric measurements. Journal of Biomechanics, 45(4), 692-698. crossref(new window)

Gottschall, J. S. & Kram, R. (2005). Ground reaction forces during downhill and uphill running. Journal of Biomechanics, 38(3), 445-452. crossref(new window)

Hong, Y. N. & Shin, C. S. (2015). Gender differences of sagittal knee and ankle biomechanics during stair-to-ground descent transition. Clinical Biomechanics, 30(10), 1210-1217. crossref(new window)

Hreljac, A., Marshall, R. N. & Hume, P. A. (2000). Evaluation of lower extremity overuse injury potential in runners. Medicine and Science in Sports and Exercise, 32(9), 1635-1641.

Kaufman, K. R., Brodine, S. & Shaffer, R. (2000). Military training-related injuries-Surveillance, research, and prevention. American Journal of Preventive Medicine, 18(3), 54-63.

Keller, T. S., Weisberger, A. M., Ray, J. L., Hasan, S. S., Shiavi, R. G. & Spengler, D. M. (1996). Relationship between vertical ground reaction force and speed during walking, slow jogging, and running. Clinical Biomechanics, 11(5), 253-259. crossref(new window)

Korea Forest Service [KFS] (2007) Mountain Climbing Support Plan 2007-2017, 11.

Kuster, M., Sakurai, S. & Wood, G. A. (1995). Kinematic and kinetic comparison of downhill and level walking. Clinical Biomechanics, 10(2), 79-84. crossref(new window)

Lay, A. N., Hass, C. J. & Gregor, R. J. (2006). The effects of sloped surfaces on locomotion: A kinematic and kinetic analysis. Journal of Biomechanics, 39(9), 1621-1628. crossref(new window)

Lay, A. N., Hass, C. J., Richard Nichols, T. & Gregor, R. J. (2007). The effects of sloped surfaces on locomotion: an electromyographic analysis. Journal of Biomechanics, 40(6), 1276-1285. crossref(new window)

Mahieu, N. N., Witvrouw, E., Stevens, V., Van Tiggelen, D. & Roget, P. (2006). Intrinsic risk factors for the development of achilles tendon overuse injury: a prospective study. The American Journal of Sports Medicine, 34(2), 226-235. crossref(new window)

McMahon, T. A., Valiant, G. & Frederick, E. C. (1985). Groucho running. Journal of Applied Physiology, 62(6), 2326-2337.

Nilsson, J. & Thorstensson, A. (1989). Ground reaction forces at different speeds of human walking and running. Acta Physioloica Scandinavica, 136(2), 217-227. crossref(new window)

Redfern, M. S. & DiPasquale, J. (1997). Biomechanics of descending ramps. Gait & Posture, 6(2), 119-125. crossref(new window)

Sheehan, R. C. & Gottschall, J. S. (2011). Stair walking transitions are an anticipation of the next stride. Journal of Electromyography and Kinesiology, 21(3), 533-541. crossref(new window)

Song, H., Nakazato, K. & Nakajima, H. (2004). Effect of increased excursion of the ankle on the severity of acute eccentric contractioninduced strain injury in the gastrocnemius. The American Journal of Sports Medicine, 32(5), 1263-1269. crossref(new window)

Wannop, J. W., Worobets, J. T., Ruiz, R. & Stefanyshyn, D. J. (2014). Footwear traction and three-dimensional kinematics of level, downhill, uphill and cross-slope walking. Gait & Posture, 40(1), 118-122. crossref(new window)

Winter, D. A. (1983). Energy generation and absorption at the ankle and knee during fast, natural, and slow cadences. Clinical Orthopaedics Related Research, 175, 147-154.

Winter, D. A., Patla, A. E., Frank, J. S. & Walt, S. E. (1990). Biomechanical walking pattern changes in the fit and healthy elderly. Physical Therapy, 70(6), 340-347.