A limitation of the present study was that the researchers who
evaluated the Glittre Activities of Daily Living test, ISWT, quality of
life, dyspnoea, peripheral muscle strength and spirometry were the
same as those who performed the therapeutic interventions.
However, the evaluations were standardised with written guidelines
to minimise the potential for bias from unblinded assessors.
Furthermore, the assessors were blinded for some key study
outcomes such as CRP, length of stay and outcome (death or
hospital discharge).