Pedersen Line Kjeldgaard, Martinkevich Polina, Ege Søren, Gjessing Sofie, Abood Ahmed Abdul-Hussein, Rahbek Ole, Møller-Madsen Bjarne
Department of Children's Orthopedics, Aarhus University Hospital, Nørrebrogade 44, 8000 Aarhus C, Denmark.
Gait Posture. 2016 Jun;47:68-73. doi: 10.1016/j.gaitpost.2016.04.007. Epub 2016 Apr 26.
Seated postural stability can be measured using Tekscan, CONFORMat. Standing postural stability has gained great clinical and, research value by use of different force platforms with mostly good reliability. No reliability testing or biologic variation assessment has been documented regarding seated balance. This study determines the reliability of the parameters of seated balance in healthy children using the Tekscan CONFORMat equipment.
Sixty-six healthy children completed six measurements of seating position the first three with the child seated in a relaxed normal back position and the next three with the child seated in a complete up-right back position. The SAM software calculated five default parameters of balance (area, distance, variability, antero-posterior (AP) excursion and left-right excursion).
Reliability parameters were assessed by one-way analysis of variance intra-class correlation (ICC) proving excellent reliability for relaxed and up-right back position with respect to distance (0.75/0.84) and good reliability with respect to variability (0.61/0.62) and area (0.61/0.60). AP excursion (0.41/0.59) and left-right excursion (0.54/0.24) showed fair to poor reliability.
In conclusion, two of the five default parameters of balance used in the Tekscan CONFORMat system are direction-independent parameters and have been found reproducible for measuring seated balance in children. This study can be used as reference for comparisons of seated balance in children with affected seated postural control and for evaluating a clinical treatment effect.
坐位姿势稳定性可使用Tekscan CONFORMat进行测量。通过使用不同的力平台，站立姿势稳定性已获得了巨大的临床和研究价值，且大多具有良好的可靠性。关于坐位平衡，尚无可靠性测试或生物变异评估的相关记录。本研究使用Tekscan CONFORMat设备确定健康儿童坐位平衡参数的可靠性。
66名健康儿童完成了六次坐位测量，前三次儿童以放松的正常背部姿势就座，后三次儿童以完全直立的背部姿势就座。SAM软件计算了五个默认的平衡参数（面积、距离、变异性、前后偏移和左右偏移）。
通过单因素方差分析组内相关性（ICC）评估可靠性参数，结果表明，对于放松和直立背部姿势，距离方面具有出色的可靠性（0.75/0.84），变异性（0.61/0.62）和面积（0.61/0.60）方面具有良好的可靠性。前后偏移（0.41/0.59）和左右偏移（0.54/0.24）的可靠性为中等至较差。
总之，Tekscan CONFORMat系统中使用的五个默认平衡参数中的两个是与方向无关的参数，已发现它们可重复用于测量儿童的坐位平衡。本研究可作为比较坐位姿势控制受影响儿童的坐位平衡以及评估临床治疗效果的参考。
