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4/5 sessions/week for 6 weeks
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Aerobic training: cycle ergometer, steps, walking, treadmill running; 5–30′ at 40–60% max heart rate or 4–6 Borg Scale
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Resistance training: upper and lower body exercises; 30–80% of 1 RM; 8–12 repetitions
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Respiratory training: using a commercial hand-held resistance for 3 sets with 10 breaths 2 times/day for 4 weeks in each set at 60% of maximal expiratory mouth pressure with a rest period of 1 min
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Cough exercise: 3 sets of 10 active coughs
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Diaphragmatic muscle training: 30 maximal voluntary diaphragmatic contractions in the supine position, placing a medium weight (1–3 kg) on the anterior abdominal wall to resist diaphragmatic descent
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Stretching exercise: the respiratory muscles are stretched under the guidance of a rehabilitation therapist; the patient was placed in the supine or lateral decubitus position with the knees bent to correct the lumbar curve; patients were ordered to move their arms in flexion, horizontal extension, abduction and external rotation