Is the human spine really adequate for walking upright and carrying weight?
The human spine is completely supportive of an erect posture, but sufficient use is required to maintain the spine in superior condion. Historically speaking, human backs have not adapted to the relatively new tasks they are asked to perfom. In recent decades, human backs suddenly found themselves in cushy, sedentary desk jobs and in countless situations of restrained-motion routines, routines void of a balancing variety of exercise. With insufficient and restricted exercise, muscles that support the spinal column do not develop properly or remain toned; discs dehydrate and harden; coordination is lost; and backs gradually collapse upon themselves. If one of today’s backs ever achieved full fitness in the first place, in today’s workplace settings they quickly lose whatever strength and agility they once had, and a serious back injury becomes only one false move away.
