What are the real life implications of pumping the arms only up to nipple level and under while running full speed ? how much stride length can be potentially lost that way ?
Why does it happen other than lack of attention ?
THANKS coaches…
What are the real life implications of pumping the arms only up to nipple level and under while running full speed ? how much stride length can be potentially lost that way ?
Why does it happen other than lack of attention ?
THANKS coaches…