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Test-retest reliability of lifting and carrying in a 2-day functional capacity evaluation
M F Reneman1, P U Dijkstra, M Westmaas
1Center for Rehabilitation, University Hospital Groningen, P.O. Box 30002, 9750 RA Haren, The Netherlands. m.reneman@beatrixoord.nl
Abstract:
The objectives of this study were to establish test-retest reliability of lifting and carrying of a functional capacity evaluation (FCE) on two consecutive days and to verify the need for a 2-day protocol. A cohort of 50 patients (39 men, 11 women) with nonspecific low back pain were evaluated using a 2-day FCE protocol. Intraclass correlation coefficients (ICC) were calculated for weight lifted and carried. Predictive relationships between test and retest were explored by means of a regression analysis. The results of ICC were lifting low 0.87, lifting overhead 0.87, and carrying 0.77. Performances on day 2 were on an average 6-9% higher. Other than the amount of weight handled on day 1, no variable was found to predict performance on day 2. It was concluded that test-retest reliability of lifting and carrying was good, and the need for a 2-day protocol could not be confirmed.