Influence of gender on quadriceps (Q) angle among adult Urhobos in Nigeria population

Abstract

Background: The Quadriceps angle (Q-angle) is defined as the angle formed between the longitudinal axis of the femur representing the pull of the quadriceps muscle and the patellar tendon. Materials and Methods: This study comprises of 90 male and 100 female adult Nigerian population of Urhobo ethnicity between the age range of 19-32 years, measurements were taken from healthy individuals with no previous history of musculoskeletal disorder to establish a standard value. The Q-angle was taken using a goniometer with the subject standing on a weight bearing position. Results: Results show that in the male subject the Q-angles were 12.92 + 1.320 and 12.27 + 1.480 for the right and left lower limb, while the female Q-angle was 16.93 + 1.350 and 16.30 + 1.200 for the right and left limb respectively. Further analysis reveals that the right Q-angle is higher than the left (P < 0.05) for both gender with the female Q-angle being slightly higher than the male (P < 0.05). Conclusion: The result obtained showed difference in the values of the left Q-angle for both gender when compared with the other indigenous research on this subject suggesting there is difference in the Q-angle values across the various ethnic groups in Nigeria.