Acute effects of commercial group exercise classes on arterial stiffness and cardiovagal modulation in healthy young and middle-aged adults: A crossover randomized trial. - Melo, Xavier; Lopes, Adma; Coelho, Raquel; Simão, Bruno; Oliveira, Isabel; Marôco, João L.; Laranjo, Sérgio; Fernhall, Bo; Santa-Clara, Helena (PLoS ONE, 2025)