The Effects of Low Intensity Endurance Exercise on Improving Mitochondrial Function, Cell Bioelectrical Impedance Phase Angle, Fatigue and Quality of Life in Lung Cancer Patients With Cancer-related Fatigue

After enrollment, subjects will be randomly assigned to three groups:

1. Control Group: No exercise intervention will be implemented. Subjects will maintain their usual lifestyle and daily activities.
2. Low-Intensity Endurance Continuous Training Group (Level 2 low-intensity continuous endurance exercise): Subjects will perform Level 2 low-intensity endurance exercise training for at least 30 continuous minutes per day, at least 5 days per week (75-80% peak heart rate [HR peak], Rating of Perceived Exertion [RPE] 11-12; the exerciser perceives the exertion as light, but breathing sounds increase, and they can comfortably hold a conversation during exercise but need to pause occasionally for breath). This continuous low-intensity endurance training will last for 12 consecutive weeks. Each exercise session will begin with a 5-minute warm-up, followed by 30 minutes of continuous low-intensity endurance exercise, and conclude with a gradual 10-minute cool-down until completely stopping.
3. Low-Intensity Endurance Interval Training Group (Alternating 3 minutes of Level 2 low-intensity endurance exercise and 3 minutes of Level 1 lowest-intensity endurance exercise, for a total of 5 alternating cycles): Subjects will perform alternating Level 2 and Level 1 (65-75% HR peak, RPE <11; the exerciser perceives the exertion as very light) exercise training for at least 30 continuous minutes per day, at least 5 days per week. This low-intensity endurance interval training will last for 12 consecutive weeks. Each exercise session will begin with a 5-minute warm-up, followed by 30 minutes of low-intensity endurance interval training, and conclude with a gradual 10-minute cool-down until completely stopping.