A Multi-language Smartphone-based Healthy Lifestyle Intervention for Firefighters

The goal of this cluster randomized controlled trial is to evaluate the effects of a smartphone-based Healthy Lifestyle (HLS) intervention on firefighters' mental and physical health in firefighters in Tainan, Taiwan. The main questions it aims to answer are: * Does the Traditional Chinese version of the HLS mobile App improve firefighters' mental and physical health compared to usual care? * Can the intervention effectively promote a healthy lifestyle and reduce the risk of chronic non-communicable diseases among firefighters? Researchers will compare firefighters receiving the smartphone-based HLS intervention to those receiving usual care to determine whether the intervention leads to improved health and fitness outcomes over 3 to 6 months. Participants will: * Use the Traditional Chinese version of the HLS mobile App, originally developed at Cambridge Health Alliance, Harvard Medical School, and adapted for firefighters in Taiwan. * Be randomly assigned to either the intervention group (HLS App) or the control group (usual care). * Undergo health and fitness assessments at baseline and at 3 to 6 months post-intervention. Anticipated outcomes are improvements in mental and physical health among firefighters receiving the intervention compared to the control group.

NCT Number	NCT06862427
Lead Sponsor	National Yang Ming Chiao Tung University Collaborators: National Cheng-Kung University Hospital
Conditions	Mental Health, Physical Performance, Cardiovascular Health, Lifestyle Intervention
Enrollment	1,000 participants
Start Date	2025-03-04
Primary Completion	2025-09 (estimated)
Study Completion	2025-12 (estimated)
Updated on ClinicalTrials.gov	2025-03-20