Participants attended three sessions at approximately
the same time each day to prevent any diurnal variations
in joint range and pain potentially confounding results
and with at least an intervening 24 h interval to reduce
the influence of any carry-over effect. Testing was
conducted in a temperature and humidity controlled
laboratory. The participants were requested to avoid
factors that may influence their shoulder pain, such as
analgesics and/or anti-inflammatory medication during
the week of testing.