*2.1. Design and Sample*

Participants were nine healthy motorcycle riders recruited from an outpatient foot specialist clinic in Madrid (Spain) from November to December 2018 using a non-random consecutive sampling method. The inclusion criteria included the following: (1) at least eighteen years old, (2) no medical problems in the clinical record nor a family history with relevant illnesses, and (3) written informed consent to participate in our research. The exclusion criteria were as follows: (1) medical trauma or a history of leg problems, (2) musculoskeletal disturbances, (3) vascular disease, (4) refusal to give written informed consent, and (5) inability to understand the protocol to participate in our research.

We conducted a cross-over trial study (prospectively registered in ClinicalTrials.gov as NCT03734133). Our report follows the guidelines and checklist in the Template for Intervention Description and Replication (TIDieR) [16].
