The type of magnet used is this study is not a Q magnet.
An Italian study using neodymium magnets sewn into textile supports worn 2-8 hours/day for 4 months has shown significant benefits over and above placebo. The 48 subjects enrolled in the study suffered from osteoarthritis or osteoporosis and were assessed for pain perception at 2 and 4 months after commencing the trial.
The perception of pain was significantly reduced in the active group (36% reduction) and increased in the placebo group (3.4% increase) (p<0.001). In addition, there was an improvement in the quality of sleep in patients with osteoarticular pain.