In the evolving realm of health care juxtaposed with cryptographic advancements, the present inquiry endeavors to seamlessly integrate the sophisticated capabilities of Artificial Intelligence of Things (AIoT) into geriatric care contexts. Notably, the conveyance and computational procedures encompassing AIoT-infused physical activity directives necessitate formidable security apparatuses. These meticulously designed protocols are quintessential to safeguarding the cardinal principles of integrity, confidentiality, authenticity, and availability pertaining to the physical activity regimens. Moreover, they underpin the evidentiary validity of the said data. In this scholarly pursuit, we have conceptualized a temporally constrained attribute-based cryptographic technique, complemented by a signature continuum. This paradigm facilitates users in signing and ciphering their directives in accordance with their designated roles and prerogatives. It acts as a bulwark against potential adulteration or unwarranted disclosures from cloud interfaces to exercise equipment, thereby fortifying both confidentiality and integrity. Furthermore, exercise apparatuses are granted access to these salutary directives contingent upon their stipulated access credentials and temporal authorization. Intruders and unauthorized systems find themselves thwarted, ensuring unparalleled privacy and impenetrable data sanctity for users.