“…Ambulatory‐measured walking capacity was performed using either Global Positioning System (GPS) receivers (Le Faucheur et al., , ; Tew et al., ; Gernigon et al., ; Nordanstig et al., , ) or the Peripheral Arterial Disease Holter Control device (Boissier et al., ; Coughlin et al., , ). Although the latter allows clinicians to perform ambulatory measures, it was used only under laboratory conditions, most likely because the device is too cumbersome for the patients (http://onlinelibrary.wiley.com/doi/10.1111/sms.12512/suppinfo).…”