Her research considers the physiological mechanisms that underpin energy balance, exercise performance and bone health.
[2] After earning her doctoral degree, Williams moved to the University of Pittsburgh, where she worked as a postdoctoral researcher in reproductive sciences.
[4] In 1997, Williams joined the faculty at Pennsylvania State University, where she was promoted to full professor in 2009.
[5] In 2012 Williams was made Head of Department of Kinesiology at the Pennsylvania State University College of Health and Human Development.
[citation needed] She has explored how weight loss impacts the acute-exercise induced suppression of appetite.