By David Tuller, DrPHTodd Davenport is a professor of physical therapy at University of the Pacific in Stockton, California. He is also part of a research team from Workwell Foundation, an exercise physiology center in Ripon, California, that pioneered the use of 2-day cardiopulmonary exercise testing (CPET) to document the core ...

By David Tuller, DrPHI recently criticized a study from New York University’s neurology department. The investigators wildly over-interpreted their findings in order to argue that postural orthostatic tachycardia syndrome, or POTS, is a “functional psychogenic disorder.” This morning, I sent a letter to Brain, the journal that published the paper, ...

By David Tuller, DrPH UPDATE, August 16, 2022: Last week, Charles Shepherd, medical advisor of the ME Association, received a response to his inquiry about the King's College London website from an administrator at the relevant unit. Here's the note: Dear Charles  Please find below response from our Team: Thank you very ...

By David Tuller, DrPHResearch into conditions categorized as “medically unexplained symptoms” (MUS) or "functional" disorders seems rife with studies that eagerly interpret associations and correlations as causal relationships. Not surprisingly, these proposed causal relationships tend to flow in the direction required by the investigators’ hypotheses, not in the direction that ...

By David Tuller, DrPHHere are a few things I've recently read (or listened to). FreakonomicsMD podcast The Freakonomics brand is well-known in the US. I didn’t realize there was a Freakonomics, M.D. podcast until I listened to this recent half-hour episode. The podcast is hosted by Dr Bapu Jena, a ...