Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

637 questions · 714 findings · 96 reviews

No studies found 98 · 13.7%GRADE not reported 191 · 26.8%Very low 157 · 22%Low 161 · 22.5%Moderate 87 · 12.2%High 20 · 2.8%

High‐intensity vs low‐intensity exercise programmes

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · patients with patellofemoral pain syndrome (untreated PFPS of over 2 months in duration)

It is very uncertain whether high‐intensity changes usual pain (short‐term) VAS (0 to 10; higher scores mean worse pain) compared with low‐intensity exercise programmes (very low certainty).

2 findings from 1 review

High‐intensity vs low‐intensity exercise programmes

Functional ability · patients with patellofemoral pain syndrome (untreated PFPS of over 2 months in duration)

It is very uncertain whether high‐intensity changes functional ability (short‐term) FIQ modified (0 to 16; higher scores… compared with low‐intensity exercise programmes (very low certainty).

2 findings from 1 review