This paper presents the ongoing development of the Intelligent Health Promotion Service System, a joint Taiwanese-Czech project focused on remote rehabilitation solutions. The system combines a multi-sensor smart orthosis with serious game integration for patient motivation. Our primary targets are aging populations with sarcopenia and potentially dementia, undergoing long-term home rehabilitation. Methodology: We focus on three key areas: Camera-based motion capture and analysis: We utilize a single 2D camera for movement capture, enabling a versatile and cost-effective solution. Machine learning models trained by physiotherapist evaluations are used for automated assessment, comparable to human raters. Reconditioning for bedridden patients: This solution provides passive reconditioning for ICU patients with limited mobility. It allows for rehabilitation in existing hospital beds, minimizing disruption to treatment routines. Smart somatosensory wearable assistive device (SSWAD): This device incorporates wireless surface electromyography (sEMG) with exergames to enhance user engagement and track rehabilitation progress. Usability studies show high user acceptance (average SUS score: 77.70) for SSWAD, particularly among female participants with prior rehabilitation experience. Conclusion: The Intelligent Health Promotion Service System offers a promising approach for remote rehabilitation, promoting patient motivation and improving accessibility, particularly for vulnerable populations.