A new study into how Kiwi women are recovering from knee surgery involves a groundbreaking rehab programme tailored to sync with a woman’s menstrual cycle. Each year, around 3000 New Zealanders undergo surgery on their anterior cruciate ligament (ACL), says Newsroom. Almost half of those knee reconstructions are on women, but most rehabilitation programmes are tailored for men. Physiotherapist Emma O’Loughlin has designed a programme specifically for women as part of her PhD thesis at the Auckland University of Technology, in order to better understand how the menstrual cycle affects rehabilitation after ACL surgery.