In this video, the instructor calculates how lifting a modest bucket can put over 560lbs of force on your back muscles and over 700lbs of force on your intervertebral discs!
Later in the video, see how your body instinctively creates more force by holding your breath. This Valsalva maneuver will create a column of muscle to add strength. And, see how the ligaments and fascia in your lumbar spine add stability to your lifts.
