shimizu used to play able-bodied football with albirex niigata ladies during the 2003-04 japanese women's league. she retired as a footballer in 2008 due to a left knee injury. she had injuries in her left knee since removal of her lateral meniscus when she was in grade 11 of high school. she was diagnosied with tumours of the adrenal gland (pheochromocytomas ). she suffered a cardiac arrest while undergoing surgery for it in 2012. after rehabilitation she tried multiple para sports. as she liked team sports she started with wheelchair basketball in 2015 with the team cocktail; where she had watched a training's session. with the national team she won the silver medal at the 2018 asian para games in jakarta.