Answer:
To determine the percentile rank for shoulder rotation (hyperextension + flexion) for the left and right shoulders, we need to know the individual's measurement for shoulder rotation and compare it to a reference population.
Percentile rank indicates the percentage of scores that fall at or below a given score. For example, if someone's shoulder rotation measurement falls at the 70th percentile, it means their measurement is equal to or greater than 70% of the measurements in the reference population.
Without specific measurements or a reference population dataset, I cannot calculate the percentile rank for shoulder rotation. You would need to consult a dataset or reference values specific to the population you are interested in, such as athletes, the general population, or a specific demographic group.
