You can increase your strength by working on generating more force on the bar at a faster speed. (coachcalorie.com)
He simply generated more force than the other guy to press his opponents hand down. (neatstrength.com)
According to many studies, lifters are able to generate more force when training one arm / leg at a time, so make sure to include at least one unilateral exercise per body part on every workout. (fitnessandpower.com)