Because of this tremendous abdominal contraction and coordinated breathing it provides a very high level of conditioning which has made it popular among fighters and other elite level athletes. (theathleticbuild.com)
The result is decreased aerobic power and a lower level of conditioning. (sportstarsmag.com)
Maintenance, as it pertains to physique composition, is simply the act of keeping your physique at a certain level of conditioning. (physiqonomics.com)