McPherson J J, Kreimeyer D, Aalderks M, Gallagher T
Am J Occup Ther. 1982 Oct;36(10):664-70. doi: 10.5014/ajot.36.10.664.
Ten adults with hypertonic wrist flexors volunteered as subjects in an experiment comparing the effectiveness of dorsal and volar resting hand splints in the reduction of abnormal muscle tone. Subjects were randomly assigned to two groups of five each. Individuals in one group were fitted with dorsal splints, and individuals in a second group with volar splints. Measurements by spring-weighted scales were taken to assess the efficiency of each splint design in the reduction of hypertonus. Results demonstrated no significant differences between the volar and dorsal splints in reducing hypertonus. However, the age of the subjects was found to be an intervening variable: The older subjects of both groups demonstrated a gradual but not significant decline in hypertonus, whereas the younger adults demonstrated a significant decline in hypertonus over a 6-week period.
十名患有高张力腕屈肌的成年人自愿作为实验对象，该实验旨在比较背侧和掌侧静息手夹板在降低异常肌张力方面的效果。受试者被随机分为两组，每组五人。一组佩戴背侧夹板，另一组佩戴掌侧夹板。通过弹簧秤进行测量，以评估每种夹板设计在降低高张力方面的效果。结果表明，掌侧夹板和背侧夹板在降低高张力方面没有显著差异。然而，发现受试者的年龄是一个干预变量：两组中的老年受试者高张力逐渐下降，但不显著，而年轻成年人在六周内高张力显著下降。
