A total of 16 subjects (11 male, 5 female, aged 21–47 years; table 1), without pathologies, abnormalities or injuries, walked barefoot on a Zebris FDM-THM plantar pressure sensing treadmill at controlled speeds of 1.1 m s−1, 1.3 m s−1, 1.5 m s−1, 1.7 m s−1 and 1.9 m s−1 for 5 min in a randomized trial order. The slowest speed (1.1 m s−1) was selected as slower than a ‘comfortable’ walking speed for healthy, young cohorts. We are conscious that comfortable speed is relative to different ages and abilities; however, 1.1 m s−1 may generally be considered slow for healthy cohorts. The fastest speed, 1.9 m s−1, was chosen as the closest speed to the accepted walk/run transition (defined as 1.88 m s−1 ). 1.3 m s−1, 1.5 m s−1 and 1.7 m s−1 were chosen for intuitive ease of analysis. Table 1.Summary of subjects' anthropomorphic measurements and N pressure records collected at each walking speed. Leg length was measured as the distance from the greater trochanter to the plantar foot surface.weightheightleg lengthNNNNNtotalsubjectgenderage(kg)(m)(m)(1.1 m s−1)(1.3 m s−1)(1.5 m s−1)(1.7 m s−1)(1.9 m s−1)NAM21751.740.9055285836266686943099BM2878.61.9115265445776136222882CF24591.650.835746006286877213210DM2783.31.850.9255165585936416882996EM2282.71.960.9654755335626086462824FM26861.751.34865205625906222780GM29701.750.8855335916076447023077HM30871.70.9055265685686546652981IF3152.71.580.855606126516947463263JM31741.730.925025535866517072999KM44801.9315045735976306602964LF37631.630.945295775946226492971MF3752.71.560.836116636927518183535NM24811.750.895235636146466863032OF2364.41.580.855786146877087653352PM20731.850.965135715996246592966total N48 931