Altered hamstring-quadriceps muscle balance in patients with knee osteoarthritis.

[1]  J. Kellgren,et al.  Radiological Assessment of Osteo-Arthrosis , 1957, Annals of the rheumatic diseases.

[2]  R. Duranti,et al.  Pain thresholds and electromyographic features of periarticular muscles in patients with osteoarthritis of the knee , 1981, PAIN.

[3]  R. D'ambrosia,et al.  The synergistic action of the anterior cruciate ligament and thigh muscles in maintaining joint stability , 1987, The American journal of sports medicine.

[4]  D. Winter,et al.  An integrated biomechanical analysis of normal stair ascent and descent. , 1988, Journal of biomechanics.

[5]  M Solomonow,et al.  The effect of joint velocity on the contribution of the antagonist musculature to knee stiffness and laxity , 1990, The American journal of sports medicine.

[6]  C. Cooper,et al.  Determinants of disability in osteoarthritis of the knee. , 1993, Annals of the rheumatic diseases.

[7]  U P Arborelius,et al.  Rising from a chair by a spring-loaded flap seat: a biomechanical analysis. , 1993, Scandinavian journal of rehabilitation medicine.

[8]  J L Lewis,et al.  Alteration in multijoint dynamics in patients with bilateral knee osteoarthritis. , 1994, Arthritis and rheumatism.

[9]  S. Kumar,et al.  Comparison between the surface electromyogram of the quadriceps surrounding the knees of healthy women and the knees of women with osteoarthrosis. , 1994, Clinical and experimental rheumatology.

[10]  S. Mazzuca,et al.  Quadriceps Weakness and Osteoarthritis of the Knee , 1997, Annals of Internal Medicine.

[11]  M. Doherty,et al.  Muscle weakness in osteoarthritis. , 1997, Current opinion in rheumatology.

[12]  M Solomonow,et al.  Motor unit recruitment strategy of antagonist muscle pair during linearly increasing contraction. , 1997, Electromyography and clinical neurophysiology.

[13]  E. Kellis Quantification of Quadriceps and Hamstring Antagonist Activity , 1998, Sports medicine.

[14]  W J Kraemer,et al.  Changes in agonist-antagonist EMG, muscle CSA, and force during strength training in middle-aged and older people. , 1998, Journal of applied physiology.

[15]  G. Ebenbichler,et al.  The role of the biarticular agonist and cocontracting antagonist pair in isometric muscle fatigue , 1998, Muscle & nerve.

[16]  F. Lacquaniti,et al.  Interactions between posture and locomotion: motor patterns in humans walking with bent posture versus erect posture. , 2000, Journal of neurophysiology.

[17]  T. Hortobágyi,et al.  Muscle pre- and coactivity during downward stepping are associated with leg stiffness in aging. , 2000, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[18]  F. Bojsen-Møller,et al.  Antagonist muscle coactivation during isokinetic knee extension , 2000, Scandinavian journal of medicine & science in sports.

[19]  L. Sharma,et al.  Local factors in osteoarthritis , 2001, Current opinion in rheumatology.

[20]  K. An,et al.  Gait characteristics of patients with knee osteoarthritis. , 2001, Journal of biomechanics.

[21]  A. Bakheit,et al.  A study of the gait characteristics of patients with chronic osteoarthritis of the knee , 2002, Disability and rehabilitation.

[22]  R. Hinman,et al.  Delayed onset of quadriceps activity and altered knee joint kinematics during stair stepping in individuals with knee osteoarthritis. , 2002, Archives of physical medicine and rehabilitation.

[23]  J. B. Nielsen,et al.  Coupling of antagonistic ankle muscles during co-contraction in humans , 2002, Experimental Brain Research.

[24]  A. Macaluso,et al.  Contractile muscle volume and agonist‐antagonist coactivation account for differences in torque between young and older women , 2002, Muscle & nerve.

[25]  A. Macaluso,et al.  Is the coactivation of biceps femoris during isometric knee extension affected by adiposity in healthy young humans? , 2003, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[26]  L. Sharma,et al.  Quadriceps Strength and Osteoarthritis Progression in Malaligned and Lax Knees , 2004, Annals of Internal Medicine.

[27]  T. Hortobágyi,et al.  Old adults perform activities of daily living near their maximal capabilities. , 2003, The journals of gerontology. Series A, Biological sciences and medical sciences.

[28]  M. Hurley Muscle dysfunction and effective rehabilitation of knee osteoarthritis: what we know and what we need to find out. , 2003, Arthritis and rheumatism.

[29]  V. Baltzopoulos,et al.  Normalisation of gait EMGs: a re-examination. , 2003, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[30]  P. T. Dixon,et al.  Knee extensor torque, work, and EMG during subjectively graded dynamic contractions , 2003, Muscle & nerve.

[31]  T. Hortobágyi,et al.  Aberrations in the control of quadriceps muscle force in patients with knee osteoarthritis. , 2004, Arthritis and rheumatism.

[32]  R. Enoka Muscular control of a learned movement: The speed control system hypothesis , 2004, Experimental Brain Research.

[33]  F. Lacquaniti,et al.  Five basic muscle activation patterns account for muscle activity during human locomotion , 2004, The Journal of physiology.