Abstract
Introduction: Muslims need to adopt several postures that require deep flexion of the knee and hip to perform daily prayer obligation. We conducted a cross-sectional study to determine the correlation between body mass index and the range of motion of the joints of the lower limb. Methodology: 115 young male adults aged between 20 to 30 years were recruited. A standard goniometer was used to determine the active and passive range of motions of the hip and knee joints in various postures during prayer. Factors analyzed include body mass index (BMI), length of the lower limbs, and circumferences of the abdomen and limbs. Results: The mean of the passive hip flexion and passive knee flexion were higher compared to other normative range of motion database. The BMI demonstrated a significant correlation with the passive range of motion of the knee joint but not with the hip joint. Conclusion: The ROM involved for prayers was more for the knee joint and less for the hip joint, reflecting a higher knee flexion angle compared to hip flexion is necessary to attain the sitting postures. BMI has a significant linear negative relationship with the knee passive ROM, hence the ability to perform specific postures in prayer.
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