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http://dx.doi.org/10.5103/KJSB.2015.25.3.257

The Effect of Genu Valgum on the Body Mass Index, Moment of Lower Limb Joints, Ground Reaction Force  

Lee, Yong-Seon (Department of Physical Therapy, Graduate School, Sehan University)
Publication Information
Korean Journal of Applied Biomechanics / v.25, no.3, 2015 , pp. 257-263 More about this Journal
Abstract
Objective : The purpose of this study was to investigate the effect of genu valgum on the body mass index, movement of lower limb joints, and ground reaction force. Methods : Gait patterns of 30 college students with genu valgum were analyzed and the static Q angle of the femur was measured for selecting genu valgum of the subjects. To analyze the kinetic changes during walking, the six-camera Vicon MX motion analysis system was used. The subjects were asked to walk 12 meters using the more comfortable walking method for walking. After they walked 12 meters more than 10 times, their most natural walking patterns were chosen three times and analyzed. Results : As a result of measuring a relationship between genu valgum and Q-angle, as the Q-angle increases, it showed a genu valgum also increased. Body Mass Index showed a significant difference between the groups was higher in the genu valgum group.(p<.001). The analysis result showed that genu valgum had a significant effect on the internal rotation moment in the hip joint(p<.05). Also, genu valgum had a significant effect on the internal rotation moment of the knee joint(p<.05). The comparative analysis of the Medial-Lateral ground reaction force in the genu valgum group showed a tendency to increase the medial ground reaction force(p<.05). The vertical ground reaction forces of the middle of the stance phase(Fz0) showed a significant increase in genu valgum group(p<.05), in particular the results showed a decrease in the early stance phase(p<.001). Conclusion : In conclusion, the change in body mass is considered to be made by proactive regular exercise for improvement of the genu valgum. In addition, the prevention of the deformation caused by secondary of the genu valgum in this study may be used as an indicator of the position alignment rehabilitation for structural and functional improvements. Applying a therapeutic exercise program for the next lap will require changes in posture alignment.
Keywords
Genu valgum; Moment; Q angle; Ground reaction force;
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1 Angela, M., & Evans, D. (2003). Reliability of the foot posture index and traditional measures of foot position, Journal of the American Podiatric Medical Association, 93.   DOI
2 Bolgla, L. A., Malone, T. R., Umberger, B. R., & Uhl, T. L. (2008). Hip strength and hip and knee kinematics during stair descent in females with and without patellofemoral pain syndrome. Journal of Orthopaedic & Sports Physical Therapy, 38(1), 12-18.   DOI
3 Cahue, S., Dunlop, D., Hayes, K., Song, J., Torres, L., & Sharma, L. (2004). Varus-valgus alignment in the progression of patellofemoral osteoarthritis. Arthritis Rheum, 50, 2184-2190.   DOI
4 Callaghan, M. J., & Baltzopoulos, V. (1994). Gait analysis in patients with anterior knee pain. Clinical Biomechanics, 9, 79-84.   DOI
5 Christian, J., Barton, Pazit, Levinger, Kay, M., Crossley, Kate, E., Webster, Hylton, & B. Menz. (2012). The relationship between rearfoot, tibial and hip kinematics in individuals with patellofemoral pain syndrome. Clinical Biomechanics, 27, 702-705.   DOI
6 Dixit, S., DiFiori, J. P., Burton, M., & Mines B. (2007). Management of patellofemoral pain syndrome. American Family Physician, 75(2), 194-202.
7 Fung, D. T., & Zhang, L. Q. (2003). Modeling of ACL impingement against the intercondylar notch. Clinical Biomechanics, 18(10), 933-941.   DOI
8 Gettys, F. K., Jackson, J. B., & Frick, S. L. (2011). Obesityin pediatric orthopedics. Orthopedic Clinics of North America, 42(1), 95-105.   DOI
9 Hewett, T. E., Myer, G. D., & Ford, K. R. (2005). Biomechanical measures of neuromuscular control and valgus loading of the knee predict anterior cruciate ligament injury risk in female athletes: a prospective study, American Journal of Sports Medicine, 33(4), 492-501.   DOI
10 Hintermann, B., Nigg, B. M., Drscnat, Sommer, C., Cole, G. K., & Eng, P. (1994). Transfer of movement between calcaneus and tibia in vitro. Clinical Biomechanics, 9(6), 349-355.   DOI
11 Kang, J. E., Yi, K. O., & Lee, T. Y. (2015). The effect of multisensory exercise on foot pressure sensitivity, balance for the elderly. Korean Journal of Sport Biomechanics, 25(1), 95-101.   DOI
12 Kirby, K. A. (2000). Biomechanics of the normal and abnormal foot. Journal of the American Podiatric Medical Association, 90, 30-34.   DOI
13 Levinger, P., & Gilleard, W. (2007). Tibia and rearfoot motion and ground reaction forces on subjects with patellofemoral pain syndrome during walking. Gait & Posture, 25(1), 2-8.   DOI
14 Levinger, P., & Gilleard, W. L. (2005). The relationship between rearfoot eversion and tibia internal rotation in patellofemoral pain syndrome individuals during walking. Biomechanics and Orthopaedic Disorders, 21(1), 79.
15 Lee, Y. T., Kim, H., & Shin, H. S. (2010). The effect of training program for the balance on the gait stability. Korean Journal of Sport Biomechanics, 20(4), 373-380.   DOI
16 Li, G., DeFrate, L. E., Zayontz, S., Park, S. E., & Gill, T. J. (2004). The effect of tibiofemoral joint kinematics on patellofemoral contact pressures under simulated muscle loads. Journal of Orthopaedic Research, 22, 801-806.   DOI
17 Noehren, B., David, I., & Hamill, J. (2007). Prospective study of the biomechanical factors associated with iliotibal band syndrome, Clinical Biomechanics, 22(9), 951-956.   DOI
18 Messier, S. P., Davis, S. E., Curl, W. W., Lowery, R. B., & Pack, R. J. (1991). Etiologic factors associated with patellofemora pain in runners. Medicine & Science in Sports & Exercise, 23(9), 1008-1015.
19 Mohsen, R., & Mark, E. (2002). Foot type clasification: acritical review of current methods. Gait & Posture, 15(58), 282-291.   DOI
20 Nigg, B. M., Hintzen, S., Ferber, R. (2006). Effect of an unstable shoe construction on lower extremity gait characteristics, Clinical Biomechanics, 21, 82-88.   DOI
21 Neumann, D. A. (2002). Kinesiology of the Musculoskeletal System. Foundation for physical rehabilitation, St Louid, Mosby, 2ed 545.
22 Powers, C. M. (2003). The influence of altered lower extremity kinematics on patellofemoral joint dysfunction: a theoretical perspective. Journal of Orthopaedic & Sports Physical Therapy, 33(11), 639-646.   DOI
23 Pretkiewicz, A. E. (2006). A comparison ofbodypositioning in children with and without genu valgum. Gait & Posture, 24(2), 184-186.   DOI
24 Rouse, S. J.(1996). The role of the iliotibial band tract in patellofemoral pain and iliotibial band friction syndromes. Physiotherapy, 82, 199-202.   DOI
25 Sahrmann, S. A. (2002). Diagnosis and Treatment of Movement Impairment Syndromes. St Luis, Mosby, Inc.
26 Sobczak, S., Dugailly, P. M., Baillon, B., Lefevre, P., Rooze, M., Salvia, P., & Feipel, V. (2012). In vitro biomechanical study of femoral torsion disorders: Effect on femoro-tibial kinematics. Clinical Biomechanics, 27, 1011-1016.   DOI
27 Woo, B. H. (2014). Characteristics for gait of the induced equinus in normal subjects. Korean Journal of Sport Biomechanics, 24(4), 435-443.   DOI
28 Tecklin, J. S. (2008). Pediatric Physical Therapy. (4th ed.). Philadelphia : J. B. Lippincott Company.
29 Willson, J. D., & Davis, I. S. (2008). Lower extremity mechanics of females with and without patellofemoral pain across activities with progressively greater task demands, Clinical Biomechanics, 23(2), 203-211.   DOI