Real-time and immediate effects of backward walking exercise on pain intensity and lumbopelvic movement control in individuals with chronic non-specific low back pain with lumbar flexion syndrome. - Chan, Ellen; Chan, Lok-Yi; Fong, Hung-Kit; Mak, Yiu-To; Kwong, Patrick Wai-Hang; Sun, Eliza Rui; Yu, Clare C. W.; Tsang, Sharon M. H. (PLoS ONE, 2025)