Stiff Legged Deadlift (barbell/dumbbell)
Rather than starting with the weight on the floor, this movement begins in a standing position while holding the weight in front and at waist level. The key is to maintain straight legs (without locking the knees) and to focus mainly on hip flexion and extension.
The weight is lowered to a point that brings the back at or near parallel to the floor. As always, slightly arch the back to keep the spine in a neutral position. Raise the weight by contracting the hamstrings and glutes.
The lower back muscles aren't lifting as much as they're stabilizing, so there should be no back pain in this movement.
Though your hands are in front of your body, keep them close to your legs as you lower and raise the weight to minimize any stress placed on the lower back.
The barbell does not make contact with the floor, so you don't lift a "dead" weight as you do in the traditional deadlift. Regardless, this movement truly targets the hamstrings and glutes, making it an outstanding posterior chain exercise.
Make it a great day!