Peiyuan Guben Tongluo Ointment for Elderly Sarcopenia

Inclusion Criteria: * Patients aged ≥ 60 years and ≤ 80 years, regardless of gender; ② Patients meeting the diagnostic criteria for sarcopenia in the elderly according to both traditional Chinese medicine (TCM) and Western medicine; * Patients meeting the TCM diagnostic criteria for Spleen-Kidney Deficiency Syndrome; * Able to take oral medications, willing to comply with the study intervention protocol, able to attend follow-up visits on time, and have signed the informed consent form. Exclusion Criteria: * Patients with quadriplegia, long-term bedridden status, zero muscle strength due to severe cerebrovascular accident, muscle atrophy caused by various factors, or inability to perform activities of daily living; * Patients with unclear consciousness, aphasia, delirium, inability to respond, or impaired time, location and orientation due to senile or vascular dementia; * Patients with severe mental illness, depressive state, or receiving relevant psychotropic medication; ④ Patients complicated with tumors, severe infections, gastrointestinal bleeding, hepatic and renal insufficiency, cardiac insufficiency, or other diseases affecting nutritional status; ⑤ Patients with hypersensitivity to the study drugs; patients who have received or are receiving traditional Chinese medicine treatment within the past 1 month; patients who have received medications affecting muscle contraction/relaxation within the past 1 month.