Rhys S. Francis

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BACKGROUND AND PURPOSE The quadriceps femoris muscle angle (Q angle) is used to reflect the quadriceps femoris muscle's force on the patella in the frontal plane. We found no studies, however, that validate this assumption. The purpose of this study was to determine whether the Q angle can be used to represent the force on the patella in the frontal plane.(More)
The purpose of this phase of the Utah study was to determine the prevalence of scoliosis in college-aged women over a three-year period. The subjects were 3,210 female college students (mean age = 19.7 +/- 2.1 years) from 34 states and 5 foreign countries. The majority (98.2%) of the students were Caucasian. Nearly 12% of the study sample (n = 380)(More)