60 MPH Strike

CHI WIHIZ THE SCIENCE OF A TAI CHI STRIKE BY KRISTA CONGER

from the article published on the Stanford Medicine website

CHEN XIANG DOES 0 TO 60 MPH IN LESS THAN THREE SECONDS. WELL, AT LEAST HIS ARM DOES.

From the articLE:

"At full strength, the blow delivered a floor reaction torque, or twisting force against the floor, of more than 14 times Chen’s body weight; his arm accelerated to 60 miles per hour within three seconds. The researchers also used thermography and functional magnetic resonance imaging to measure biophysical changes that occur during the process of “focusing the chi.”"