In the sport of weightlifting, strength should be defined as an accelerated velocity of a mass. Since the time in motion of that mass must remain the same, regardless of the mass, the force production will increase as the mass increases as the time in motion stays the same. This means that the lifter’s ability to move a greater mass is dependent on their ability to maintain a specific time in motion regardless of that mass.  This website explores the connection between the squats and pulls and how those lifts should be trained with respect to the snatch and clean & jerk’s times in motion.