We aimed to investigate the initial foot contact and contact time in experienced
endurance runners at individualized speeds, in running shoes and barefoot.
Forty-eight participants (33.71±7.49 y,
70.94±8.65 kg, 175.07±7.03 cm, maximum aerobic
speed 18.41±1.54 km.h-1) were distributed
into three groups according to athletic performance: highly-trained runners,
middle-trained runners, and control group. An incremental running test until
exhaustion was performed for assessing maximum aerobic speed.
After≥24 h of recovery participants randomly walked and ran,
barefoot and in running shoes, over a pressure plate at
~4.7 km.h-1 and 85% of the
maximum aerobic speed, respectively. They wore the same model of running shoes
with homogeneous lacing pattern. A rearfoot strike was performed by
68.8% and 77.1% of participants when running barefoot and in
running shoes, respectively. Considering the tendency to develop a rearfoot
strike was lower in the barefoot condition, runners with higher performance may
benefit from training in minimalist running shoes because their foot contact
pattern could tend towards a non-rearfoot strike. Our results suggest that
initial foot contact and contact time are related to running performance and may
also be influenced by running shoes.