refers to the firmness between the upper and lower body, which ensures unity of these parts - body tone Without this unity, a slump occurs Tautness in the arms also creates unity between the arms and the body - firm frame, without which, very little 'to-getherness' between partners can exist (see contraction , collapse )
The condition of a rope wire or chain when under sufficient tension to cause it to assume a straight line, or to prevent sagging to any appreciable amount