
Positioning for quad sets exercises. Contract the quads and hold the contraction for 10 seconds, if necessary trying to push the knee down onto the bed.

Bending the knee slightly with a soft towel or foam will help the exercise.
Quad sets or quads sets are knee rehabilitation exercises to keep the quadriceps (quads) muscles from becoming inhibited after injury or surgery. Page updated April 2024 by Dr Sheila Strover (Clinical Editor)

Positioning for quad sets exercises. Contract the quads and hold the contraction for 10 seconds, if necessary trying to push the knee down onto the bed.

Bending the knee slightly with a soft towel or foam will help the exercise.

This photograph shows a well-contracted quads muscle.
The largest of the four muscles is the rectus femoris.
Quick linksThere may be no actual injury to the muscle itself - it may just become reflexly inhibited.
Peer-reviewed papersQuote from peer-reviewed paper:
Citation: Palmieri-Smith RM, Villwock M, Downie B, Hecht G, Zernicke R. Pain and effusion and quadriceps activation and strength. J Athl Train. 2013 Mar-Apr;48(2):186-91. doi: 10.4085/1062-6050-48.2.10. Epub 2013 Feb 20. PMID: 23672382; PMCID: PMC3600920.
Patients discuss rehabilitation issues.