This is a prospective, two-arm, parallel-group, single-blind randomized controlled clinical trial. Eligible patients diagnosed with Systemic Lupus Erythematosus will be randomized into two arms:
Control Group: Receives an 8-week multi-component standard exercise program (aerobic, resistance, range of motion, and stretching exercises).
Intervention Group: Receives the identical 8-week standard exercise program combined with slow resonance frequency breathing training at 6 breaths per minute (0.1 Hz) guided by the offline mobile application "Prana Breath".
Clinical and functional assessments will be conducted at baseline (Week 0) and at the end of the intervention (Week 8).
