I tried contrast training and it might be the fastest way to build strength and power at the same time

Build strength, power and a leaner physique in the same workout ...
Men's Journal

The Speed-Based Training Trick Strength Coaches Swear by to Build Power and Break Plateaus

View post: Snowboarder Jeremy Jones Built a Legacy on 2,400-Foot Alaskan Faces. Now He’s Watching His 20-Year-Old Daughter Do the Same Most guys think the only trick to getting stronger is lifting ...