“What is it with all the chicken bones all over the place? We can’t take a walk without finding chicken bones,” says Steve Mulder, who owns Zoom Room in Rockville with his partner Jean-Louis Marechal.

Correspondence to Professor Peter B O'Sullivan, School of Physiotherapy and Exercise Science, Curtin University, Perth, WA 6102, Australia; p.osullivan{at}curtin.edu.au If you wish to reuse any or all ...