Every time you get up, sit down, walk or run, the quadratus lumborum contract. Now that you know all of this, you might have found the culprit for that nagging back pain you can't seem to treat.

Hip Hike Shutterstock “This mobility movement activates a muscle called quadratus lumborum in the low back, which can be very tight,” Dr. McDowell says. Shift the majority of your body weight to your ...

Approximation properties of a class of artificial neural networks are established. It is shown that feedforward networks with one layer of sigmoidal nonlinearit ...