The Effects of Walking or Nordic Walking in Adults 50 Years and Older at Elevated Risk of Fractures: A Systematic Review and Meta-Analysis. - Rodrigues, Isabel B.; Ponzano, Matteo; Butt, Debra A.; Bartley, Joan; Bardai, Zahra; Ashe, Maureen C.; Chilibeck, Philip D.; Thabane, Lehana; Wark, John D.; Stapleton, Jackie; Giangregorio, Lora M. (Journal of Aging & Physical Activity, 2021)