Introduced to me years ago by a favorite college coach of mine, the straight leg dead lift or Romanian dead lift should be a staple in 
everyone’s training. This exercise helps bring balance to the lower body, strengthening and stretching the low back and hamstrings. An absolute must for any speed athlete, and anyone with a history of hamstring pulls.
Coaching points include keeping chest and butt big and not rounding shoulders or back. Pivot from a single point at the hip keeping head and eyes up. Keep the lift smooth. Keep the weight light and focus on the stretch, not moving big weight.
Varieties include: olympic bar (pictured right), dumbbells. Add the one legged version to improve balance and better body control.
(Single Leg) Straight Leg Dead Lift
Good Morning: Olympic bar in back squat position (good morning) same coaching points.