A traditional pull - up relies on upper body strength with no swinging or «kipping» (using a forceful initial movement of the legs in order to gain momentum). (fitwirr.com)
Shelton figures to replace the injury - prone Phil Taylor, a 335 - pound upright player with good initial movement who could still see time at defensive end. (si.com)
A playmat is made for young babies to help them learn initial movements. (mommystroller.com)