Study the effects of inspiratory muscle training at Low load of 25 % Maximal inspiratory pressure with slow breathing rate at 6 breaths/min with BreatheMAXยฎdevice for 8 weeks at home on inspiratory muscle strength, lung function (slow vital capacity, inspiratory capacity), chest wall expansion, abdominal expansion, exercise capacity by arm ergometry and blood pressure in elderly with Isolated systolic hypertension. who have age 60-80 years.
