Effects of Yoga-Based Intervention with Bhramari Pranayama and Chakra Meditation on Sympatho-Vagal Balance in Perimenopausal Women: A Randomized Controlled Trial - Jayachitra Subramanian; Subbulakshmi Velusamy; Ethiraj Balaji; Nirmal Michael Salvi; Erianti (Physical Rehabilitation and Recreational Health Technologies, 2026)