Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

61 questions · 64 findings · 18 reviews

No studies found 18 · 28.1%GRADE not reported 1 · 1.6%Very low 17 · 26.6%Low 19 · 29.7%Moderate 5 · 7.8%High 4 · 6.3%

Exercise therapy vs a control strategy (no treatment, placebo or waiting list controls)

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · patients with patellofemoral pain syndrome (symptoms > 3 weeks (1 study); symptoms > 1 month (3 studies); symptoms > 2 months (2 studies);…

It is very uncertain whether exercise therapy changes usual pain (long‐term) VAS (0 to 10; higher scores mean worse pain) compared with a control strategy (no treatment, placebo or waiting list controls) (very low certainty).

1 finding from 1 review

Exercise therapy vs a control strategy (no treatment, placebo or waiting list controls)

Usual pain (short‐term) · patients with patellofemoral pain syndrome (symptoms > 3 weeks (1 study); symptoms > 1 month (3 studies); symptoms > 2 months (2 studies);…

It is very uncertain whether exercise therapy changes usual pain (short‐term) Scale (0 to 10; higher scores mean worse pain) compared with a control strategy (no treatment, placebo or waiting list controls) (very low certainty).

1 finding from 1 review

Exercise therapy vs a control strategy (no treatment, placebo or waiting list controls)

Pain during activity (long‐term) VAS (0 to 10; higher scores mean worse pain) · patients with patellofemoral pain syndrome (symptoms > 3 weeks (1 study); symptoms > 1 month (3 studies); symptoms > 2 months (2 studies);…

It is very uncertain whether exercise therapy changes pain during activity (long‐term) Scale (0 to 10; higher scores mean… compared with a control strategy (no treatment, placebo or waiting list controls) (very low certainty).

1 finding from 1 review

Exercise therapy vs a control strategy (no treatment, placebo or waiting list controls)

Pain during activity (short‐term) · patients with patellofemoral pain syndrome (symptoms > 3 weeks (1 study); symptoms > 1 month (3 studies); symptoms > 2 months (2 studies);…

It is very uncertain whether exercise therapy changes pain during activity (short‐term) Scale (0 to 10; higher scores mean… compared with a control strategy (no treatment, placebo or waiting list controls) (very low certainty).

1 finding from 1 review