Effect of Nitya-Abhyaṅga (self-massage) combined with stretching on hamstring extensibility, muscle stiffness, and stretch tolerance in college students: a randomized controlled trial. - John, Tony Jacob; Dileep, Anusree; Madhavan, Vandana Rani; Sudha, Meera; Robin, Delvin T. (Frontiers in Sports & Active Living, 2026)