Pressure mapping as a complement in clinical sitting analysis in children during activity

The purpose of this study was to investigate whether pressure mapping can be used as a complement in sitting analysis. The purpose was also to study test–retest reliability and to obtain reference values in healthy children. The children performed a structured activity sitting on the pressure mat. The variables studied in children 4–15 years of age were the mean pressure distribution of one half of the body in relation to the whole sitting surface and the transfer of the centre of pressure (COP) in target reaching in relation to the calculated mean COP when sitting still. The standard deviation for the mean COP was calculated and test–retest for reliability was performed. The results showed significant differences between the youngest children and children 8–15 years of age concerning the transfer of COP sideways and in standard deviation of mean COP sideways. The results for weight distribution, COP transfer sideways and deviation from mean COP sideways were repeatable and consistent with studies of postural control in children. Pressure mapping was considered feasible as a complement to qualitative sitting analysis when looking at seat load symmetry, transfer of COP sideways and deviation from mean COP sideways. Reference values were gathered and can be used as comparison in future studies of children with disabilities.

[1]  S. Liao,et al.  Differences in Seated Postural Control in Children with Spastic Cerebral Palsy and Children Who Are Typically Developing , 2003, American journal of physical medicine & rehabilitation.

[2]  D A Winter,et al.  Sampling duration effects on centre of pressure summary measures. , 2001, Gait & posture.

[3]  H Lanshammar,et al.  Amplitude and frequency analysis of force plate data in sitting children with and without MMC. , 2000, Clinical biomechanics.

[4]  Patrice L. (Tamar) Weiss,et al.  Effect of seated posture on interface pressure in children who are able-bodied and who have myelomeningocele , 2000, Disability and rehabilitation.

[5]  R. Shepherd,et al.  Sitting balance I: trunk-arm coordination and the contribution of the lower limbs during self-paced reaching in sitting. , 1999, Gait & posture.

[6]  A. G. Fisher,et al.  Uniting practice and theory in an occupational framework. 1998 Eleanor Clarke Slagle Lecture. , 1998, The American journal of occupational therapy : official publication of the American Occupational Therapy Association.

[7]  P. Helders,et al.  Functional motor abilities of children with cerebral palsy: a systematic literature review of assessment measures , 1998, Clinical rehabilitation.

[8]  R. M. Smith,et al.  Sitting Balance in Spinal Deformity , 1992, Spine.

[9]  S. Harris,et al.  Development of a clinical measure of postural control for assessment of adaptive seating in children with neuromotor disabilities. , 1992, Physical therapy.

[10]  S. Harris,et al.  Development of a Clinical Measure of Postural Control for Assessment of Adaptive Seating in Children with Neuromotor Disabilities , 1991 .

[11]  D. Cadman,et al.  THE GROSS MOTOR FUNCTION MEASURE: A MEANS TO EVALUATE THE EFFECTS OF PHYSICAL THERAPY , 1989, Developmental medicine and child neurology.

[12]  Patricia McKenney Moulton.  A Motor Relearning Programme for Stroke (2nd ed.) , 1989 .

[13]  M. Woollacott,et al.  The growth of stability: postural control from a development perspective. , 1985, Journal of motor behavior.

[14]  A E Patla,et al.  Theoretical considerations in balance assessment. , 2001, The Australian journal of physiotherapy.

[15]  B. Öberg,et al.  Activities and functional assessment 1 year after spinal fusion for paralytic scoliosis , 1999, European Spine Journal.

[16]  B. Öberg,et al.  Preoperative evaluation of activity and function in patients with paralytic scoliosis , 1998, European Spine Journal.

[17]  U. Myhr.  On factors of importance for sitting in children with cerebral palsy , 1994 .

[18]  M Ferguson-Pell,et al.  Prototype development and comparative evaluation of wheelchair pressure mapping system. , 1993, Assistive technology : the official journal of RESNA.

[19]  Isabella Buddeberg.  An Investigation of Postural Sway in Sitting of Normal Children and Children with Neurological Disorders , 1992 .