In a meta-analysis of eight randomised trials, short-term exercise produced a large reduction in knee osteoarthritis pain overall (SMD -0.94), and non-weight-bearing strengthening had the biggest effect (-1.42) compared with weight-bearing strengthening (-0.70) and aerobic exercise (-0.45).
What it shows: Pooled data from only eight randomised trials, all using programmes of more than three sessions a week for up to eight weeks, so this speaks to short-term pain relief only; the subgroup comparison is indirect and the review dates from 2013.Meta-analysis · Clin Rehabil