Swipe om te navigeren naar een ander artikel
The online version of this article (doi:10.1186/1757-1146-6-39) contains supplementary material, which is available to authorized users.
The authors declare that they have no competing interests.
JC, JH and TY designed the study. JC, JH and BL conducted the experiment and the statistical analysis. JC drafted the manuscript with assistance from JH, BL, VPWS, SB, SJ and TY. All authors reviewed and approved the final manuscript.
The growing ageing population and high prevalence of knee osteoarthritis (OA) in athletes across nations have created a strong demand for improved non-invasive therapeutic alternatives for knee OA. The aim of this study is to investigate the effect of the variable stiffness shoe (VSS), a new non-invasive therapeutic approach, on external knee adduction moment (EKAM) in various dynamic exercises. EKAM is believed to have positive correlation with the progression and development of knee OA.
Thirty young participants (16 male and 14 female; age 22.6 ± 1.9 years) from National University of Singapore were enrolled in this study. The tested activities were walking, running, drop-landing, and lateral hopping. All the dynamic exercises were recorded simultaneously by the 8-camera VICON Motion Systems (Oxford Metric, UK) with a sampling rate of 100 Hz.
The results showed that the EKAM was reduced in all the dynamic exercises with the use of VSS. The VSS produced significant reductions in the peak EKAM during walking (4.97%, p = 0.039), running (11.15%, p = 0.011), drop-landing (11.18%, p = 0.038) and lateral hopping (17.34%, p = 0.023) as compared to the control shoe.
The reduction of EKAM with the use of VSS in various dynamic exercises demonstrates its potential in delaying the onset and the progression of knee OA in early stage of knee OA patients.
Arden N, Nevitt MC: Osteoarthritis: Epidemiology. Best Pract Res Cl Rh. 2006, 20: 3-25. CrossRef
Kujala UM, Kaprio J, Sarna S: Osteoarthritis of weight bearing joints of low limbs in former elite male athletes. Br Med J. 1994, 308: 231-234. 10.1136/bmj.308.6923.231. CrossRef
Michaud CM, McKenna MT, Begg S, Tomijima N, Majmudar M, Bulzacchelli MT, Ebrahim S, Ezzati M, Salomon JA, Kreiser JG, et al: The burden of disease and injury in the United States 1996. Population Health Metrics. 2006, 4:
Tetsworth K, Paley D: Malalignment and degenerative arthropathy. Orthop Clin N Am. 1994, 25: 367-377.
Shelburne KB, Torry MR, Steadman JR, Pandy MG: Effects of foot orthoses and valgus bracing on the knee adduction moment and medial joint load during gait. Clin Biomech. 2008, 23: 814-821. 10.1016/j.clinbiomech.2008.02.005. CrossRef
Hovis KK, Stehling C, Souza RB, Haughom BD, Baum T, Nevitt M, McCulloch C, Lynch JA, Link TM: Physical activity is associated with magnetic resonance imaging-based knee cartilage T2 measurements in asymptomatic subjects with and those without osteoarthritis risk factors. Arthritis Rheum. 2011, 63: 2248-2256. 10.1002/art.30419. CrossRefPubMedPubMedCentral
Sharma L, Hurwitz DE, Thonar EJMA, Sum JA, Lenz ME, Dunlop DD, Schnitzer TJ, Kirwan-Mellis G, Andriacchi TP: Knee adduction moment, serum hyaluronan level, and disease severity in medial tibiofemoral osteoarthritis. Arthritis Rheum. 1998, 41: 1233-1240. 10.1002/1529-0131(199807)41:7<1233::AID-ART14>3.0.CO;2-L. CrossRefPubMed
Astephen JL, Deluzio KJ: Changes in frontal plane dynamics and the loading response phase of the gait cycle are characteristic of severe knee osteoarthritis application of a multidimensional analysis technique. Clinical Biomechanics. 2005, 20: 209-217. 10.1016/j.clinbiomech.2004.09.007. CrossRefPubMed
Amin S, Luepongsak N, McGibbon CA, LaValley MP, Krebs DE, Felson DT: Knee adduction moment and development of chronic knee pain in elders. Arthritis Care Res. 2004, 51: 371-376. 10.1002/art.20396. CrossRef
Vanwanseele B, Eckstein F, Smith RM, Lange AK, Foroughi N, Baker MK, Shnier R, Fiatarone Singh MA: The relationship between knee adduction moment and cartilage and meniscus morphology in women with osteoarthritis. Osteoarthritis Cartilage. 2010, 18: 894-901. 10.1016/j.joca.2010.04.006. CrossRefPubMed
Shimada S, Kobayashi S, Wada M, Uchida K, Sasaki S, Kawahara H, Yayama T, Kitade I, Kamei K, Kubota M, Baba H: Effects of disease severity on response to lateral wedged shoe insole for medial compartment knee osteoarthritis. Arch Phys Med Rehabil. 2006, 87: 1436-1441. 10.1016/j.apmr.2006.08.018. CrossRefPubMed
Birmingham TB, Giffin JR, Chesworth BM, Bryant DM, Litchfield RB, Willits K, Jenkyn TR, Fowler PJ: Medial opening wedge high tibial osteotomy: A prospective cohort study of gait, radiographic, and patient-reported outcomes. Arthritis Care Res. 2009, 61: 648-657. 10.1002/art.24466. CrossRef
Sutton AJ, Muir KR, Mockett S, Fentem P: A case–control study to investigate the relation between low and moderate levels of physical activity and osteoarthritis of the knee using data collected as part of the Allied Dunbar National Fitness Survey. Ann Rheum Dis. 2001, 60: 756-764. 10.1136/ard.60.8.756. CrossRefPubMedPubMedCentral
Sandmark H, Vingård E: Sports and risk for severe osteoarthrosis of the knee. Scand J Med Sci Spor. 1999, 9: 279-284. CrossRef
Sarna S, Kaprio J, Kujala UM, Koskenvuo M: Health status of former elite athletes. The Finnish experience. Aging Clin Exp Res. 1997, 9: 35-41. CrossRef
Lane NE, Hochberg MC, Pressman A, Scott JC, Nevitt MC: Recreational physical activity and the risk of osteoarthritis of the hip in elderly women. J Rheumatol. 1999, 26: 849-854. PubMed
Bagge E, Bjelle A, Eden S, Svanborg A: Factors associated with radiographic osteoarthritis: Results from the population study 70-year-old people in Goteborg. J Rheumatol. 1991, 18: 1218-1222. PubMed
Cooper C, McAlindon T, Snow S, Vines K, Young P, Kirwan J, Dieppe P: Mechanical and constitutional risk factors for symptomatic knee osteoarthritis: Differences between medial tibiofemoral and patellofemoral disease. J Rheumatol. 1994, 21: 307-313. PubMed
White JA, Wright V, Hudson AM: Relationships between habitual physical activity and osteoarthrosis in ageing women. Publ Health. 1993, 107: 459-470. 10.1016/S0033-3506(05)80172-6. CrossRef
Panush RS, Schmidt C, Caldwell JR: Is running associated with degenerative joint disease?. JAMA. 1986, 255: 1151-1154. CrossRef
Lane NE, Oehlert JW, Bloch DA, Fries JF: The relationship of running to osteoarthritis of the knee and hip and bone mineral density of the lumbar spine: A 9 year longitudinal study. J Rheumatol. 1998, 25: 334-341. PubMed
Hannan MT, Felson DT, Anderson JJ, Naimark A: Habitual physical activity is not associated with knee osteoarthritis: The Framingham Study. J Rheumatol. 1993, 20: 704-709. PubMed
Levinger P, Menz HB, Fotoohabadi MR, Feller JA, Bartlett JR, Bergman NR: Foot posture in people with medial compartment knee osteoarthritis. J Foot Ankle Res. 2010, 3:
- Investigation of the biomechanical effect of variable stiffness shoe on external knee adduction moment in various dynamic exercises
Jee Chin Teoh
Jin Huat Low
Ying Bena Lim
Victor Phyau-Wui Shim
Sang Jun Park
- BioMed Central