Tai Chi training may reduce dual task gait variability, a potential mediator of fall risk, in healthy older adults: cross-sectional and randomized trial studies oleh Peter M Wayne, Peter M Wayne, Jeffrey M Hausdorff, Matthew eLough, Brian J Gow, Brian J Gow, Lewis eLipsitz, Vera eNovak, Eric A Macklin, Eric A Macklin, Chung-Kang ePeng, Chung-Kang ePeng, Brad eManor