Aerobic exercise without medication
Othertwenty patients will participate in moderate intensity intradialytic aerobic training for 12 weeks. (3 times per week). Using Horizontal electromagnetically braked cycle ergometer during the first half of the dialysis session.
(1) Frequency: received intradialytic, lower-limb, cycling exercise three times per week on alternative days (2) Intensity: the intensity of exercise will be at 12-14 (moderate-intensity: somewhat hard or reports of feeling a little bit tired but still ok to continue) based on the Borg's Perceived Exertion Rating Scale Appendix III (a rating of 6 perceiving "no exertion at all" to 20 perceiving a "maximal exertion" of effort) ,Appropriate speed and grade of resistance were adjusted to achieve the required intensity. (3) Time: the duration of each exercise session consisted of a 5-min warm-up in form of circulatory exercise.