The authors hypothesized that the PST measurement
would have good interrater reliability
based on the nature of the testing procedures. With
regard to validity, it was hypothesized that a strong
positive relationship would exist between PST and
IR with little or no relationship between PST and
ER. Active measurements of IR and ER were used to
establish validity since participants were healthy
and without injury or neuromuscular impairments
therefore soft tissue tightness was the most likely
limiting factor for all measurements