I saw an article about a workout move called good mornings...what is that exercise? How do you do it? What does it benefit?
The traditional "Good Morning" is an exercise that should probably, in all reality, stay where it was created,,, in the past.
The exerciser places a barbell on the back of the neck, upper back (such as in squatting position), with what ever load was deemed necessary. The movement that follows is a "deadlift of sorts" where as the individual flexes at the hip down to the depth deemed necessary, and returns to the starting position. The goal, depending on who you talk to is either, "low back", or "hamstrings."
However, it is not difficult to see why this exercise can be considered dangerous, as:
The shearing forces at the cervical spine while in the hip-flexed position are undoubtedly excessive!
The moment arm during the movement (shortest distance from the point of axis, the hip, to the line of resistance, imaginary line from weight straight down due to gravity, AND perpendicular to the line of resistance) is basically the upper torso. At the top of the movement (standing), where your body is the strongest, the moment arm is non existent as the line of resistance passes right through the spine/body; there by making the load the "lightest." At the bottom of the movement (hip flexed), where your body/joints/tissues are the weakest, the moment arm is the longest; there by making the load the "heaviest!"
What this means is that the STRENGTH PROFILE OF THE BODY, and the RESISTANCE PROFILE OF THE EXERCISE are COMPLETE OPPOSITES!
THIS IS NOT AN EXERCISE OPTIMAL FOR STRENGTH GAINS OR SAFETY!!!
To shorten the moment arm of the exercise, increase safety, and decrease likelihood of injury, I would suggest (assuming the individual has been progressed properly and demonstrates adequate flexibility and core strength), performing deadlifts in the following progression(s)... ...
- Single Leg Romanian Deadlifts (unloaded)
- Single Leg Romanian Deadlifts (dumbbell)
- Double Leg Deadlifts (dumbbell, barbell)
(Exercises found in PTontheNET Library of Exercises!)