Secondary outcomes for aerobic exercise vs. usual care
knee complaints
The aerobic exercise showed better KOOS symptoms score (7.4, 95% CI 0.4 to 14.4), better quadriceps strength (10.1, 95% CI 0.9 to 19.3 Nm and 0.15, 95% CI 0.05 to 0.26 Nm/BW), and better VOThe GRC showed that 65% (at 4 months) and 39% (at 1 year) in the strength exercise group reported a little bit better, much better, or fully recovered knee complaints. In the aerobic exercise group, the corresponding proportions were 62% (at 4 months) and 42% (at 1 year), and in the usual care group 38% (at 4 months) and 31.5% (at 1 year) (Table 
Global rating of change in knee complaintsNumbers (%) are presented for change in knee complaints from the previous follow-up, between baseline and 4 months and between 4 months and 1 year