Welcome back!  Last month we spoke in depth about how movement efficiency off the ice can tangibly aid in on-ice skating performance.  We used basic physics to determine that if we increase impulse (the product of net force and the time the force is applied) we can improve our stride efficiency while using less energy to accomplish a given task.  Let’s stay with basic physics as this helps elucidate just why strength training is important for the aspiring hockey player.  First, we must proceed with an elementary understanding of force.