Figure 1.

Frames, at 2 second intervals from videos over a fixed course, in an idiopathic parkinsonism (IP) patient before (top) and 6 weeks (below), 18 weeks (below again), and 1 year (bottom) after biopsy‐proven eradication of H. pylori. Initial detection by molecular microbiology on culture‐negative antral and corporal biopsies. The patient can now cycle 10 miles, and continues not to require anti‐IP medication. It took 6 frames to cover the course initially, 4 or fewer subsequently. The initial gait was tentative, stilted, wooden and doll‐like. Subsequently, it became relaxed, free‐flowing and, finally, vigorous. (Reproduced with patient's consent.)