Low-cost bodyweight callisthenic-based HIIT improves blood pressure, glucose control, and TyG in older adults with metabolic syndrome. - Nascimento-da-Silva, Fabio; Lopes, Angela Maria Moed; Araujo, Renata Alves Andrade Moreira; Werneck-De-Castro, João Pedro; Valentim-Silva, João Rafael (Frontiers in Sports & Active Living, 2026)