Hip Spasticity and Strength in Children with Spastic Diplegia Cerebral Palsy

Hip spasticity and strength from 44 children with cerebral palsy (CP) and 44 children with able bodies (AB) were compared. For spasticity, a KinCom dynamometer abducted the passive hip at 4 different speeds and recorded the resistive adductor torques. Work values for the torque-angle data were calculated at each speed. Linear regression derived the slope for the line of best fit for the work-velocity data to determine the spasticity measure. For strength, the KinCom rotated the hip from maximum adduction to maximum abduction at a speed of 10°/s while the child performed a maximum abduction concentric contraction. Tests were reversed to record maximum adduction. Maximum torques and work by the abductors and adductors were calculated. Spasticity in the adductors for the CP group was significantly greater than values recorded for the AB group. All strength measures were significantly less than the AB group. Results provide objective information, quantifying hip spasticity and strength in children with CP.

[1]  H. MacPhail,et al.  EFFECT OF ISOKINETIC STRENGTH‐TRAINING ON FUNCTIONAL ABILITY AND WALKING EFFICIENCY IN ADOLESCENTS WITH CEREBRAL PALSY , 1995, Developmental medicine and child neurology.

[2]  M. Hea,et al.  Effect of isokinetic strength training on functional ability and walking efficiency in in adolescents with cerebral palsy , 1996 .

[3]  W. Oppenheim.  Selective posterior rhizotomy for spastic cerebral palsy. A review. , 1990, Clinical orthopaedics and related research.

[4]  S. Olney,et al.  Work and power in hemiplegic cerebral palsy gait. , 1990, Physical therapy.

[5]  J. Engsberg,et al.  Changes in ankle spasticity and strength following selective dorsal rhizotomy and physical therapy for spastic cerebral palsy. , 1999, Journal of neurosurgery.

[6]  H. MacPhail,et al.  Relationships Among Measures of Walking Efficiency, Gross Motor Ability, and Isokinetic Strength In Adolescents With Cerebral Palsy , 1994 .

[7]  W. Rymer,et al.  Spastic hypertonia: mechanisms and measurement. , 1989, Archives of physical medicine and rehabilitation.

[8]  D. Damiano,et al.  Lower‐Extremity strength profiles in spastic cerebral palsy , 1998, Developmental medicine and child neurology.

[9]  R. A. Davidoff.  Antispasticity drugs: Mechanisms of action , 1985, Annals of neurology.

[10]  W. Peacock,et al.  Functional outcomes following selective posterior rhizotomy in children with cerebral palsy. , 1991, Journal of neurosurgery.

[11]  Richard W. Bohannon,et al.  Interrater reliability of a modified Ashworth scale of muscle spasticity. , 1987, Physical therapy.

[12]  J. Engsberg,et al.  Spasticity and strength changes as a function of selective dorsal rhizotomy. , 1998, Neurosurgical focus.

[13]  G E Molnar,et al.  Reliability of quantitative strength measurements in children. , 1979, Archives of physical medicine and rehabilitation.

[14]  J. Engsberg,et al.  Maximum Active Resultant Knee Joint Torques in Children With Cerebral Palsy , 1998 .

[15]  J R Engsberg,et al.  Quantitative clinical measure of spasticity in children with cerebral palsy. , 1996, Archives of physical medicine and rehabilitation.

[16]  B. Pentland,et al.  Inter‐rater reliability of the modified Ashworth Scale for spasticity in hemiplegic patients , 1992, International journal of rehabilitation research. Internationale Zeitschrift fur Rehabilitationsforschung. Revue internationale de recherches de readaptation.

[17]  Symposium synopsis , 1986 .

[18]  J. Engsberg,et al.  Quadriceps and Hamstring Strength Changes as a Function of Selective Dorsal Rhizotomy Surgery and Rehabilitation , 2001, Pediatric physical therapy : the official publication of the Section on Pediatrics of the American Physical Therapy Association.

[19]  D. Damiano,et al.  Effects Of Quadriceps Femoris Muscle Strengthening On Crouch Gait In Children With Spastic Diplegia , 1995, Physical therapy.

[20]  Christopher Kennard,et al.  Scientific basis of clinical neurology , 1985 .

[21]  J R Engsberg,et al.  Ankle spasticity and strength in children with spastic diplegic cerebral palsy , 2000, Developmental medicine and child neurology.