That study was funded by the Shoe Store Collective (SHOETEC) , there's a counter study funded by Easy Chair Outlet Co-op (ECOCOP) that suggests that standing for more than 15 minutes a day causes serious knee damage and is to be avoided in the best interests of health. This claim is of course disputed by the Knee Surgeon's Advancement Board (KNESA) who fear a dramatic reduction in referrals. They plan on funding a companion review detailing the benefits of kneeling.