The U.S. Army Physical Fitness School cannot endorse any specific inversion product, but safety is a vital concern. Gravity's relentless force on the human body can impair mobility and lead to injuries. Soldier's spend most of their time in the common postures which have a shortening and compression effect on their bodies. To offset the effect of gravity and military training, PT should include activities in the uncommon postures .
Spatial orientation is also important to overall physical readiness.
Even if you are experienced in gymnastics, wrestling, diving, or some other highly three dimensional activity, take your time learning to invert, and always use a spotter. Hiatal hernia Ventral hernia Extreme obesity Pregnancy Progress slowly in your training. For the first few sessions, it is not necessary to invert. Never invert without a spotter. Once you feel comfortable, try full inversion for 60-120 seconds.