Also referred to as stiff legged deadlifts, this lift takes some of the load off of the knees that is found in conventional deadlifts. By keeping the knees close to locked out, the butt gets pushed back more, stretching out the glutes and hamstrings. From standing with the bar at your feet, push your butt back and keep your back straight until your hand reach the bar. Keep your shoulder blades pulled back so that your upper back does not hunch over. Make sure to keep your neck straight, but not strained upwards. Bring the bar up to the top by squeezing your glutes. You should be using much less weight for RDLs compared to conventional deadlifts as RDLs isolate hip flexion and hip extension while deadlifts are more of a compound lift.