Acute Effects of Vibration Foam Rolling Warm-Up on Jump and Flexibility Asymmetry, Agility and Frequency Speed of Kick Test Performance in Taekwondo Athletes. - An-Hsu Chen; Chih-Hui Chiu; Chin-Hsien Hsu; I-Lin Wang; Kuei-Ming Chou; Yung-Shen Tsai; Yu-Fang Lin; Che-Hsiu Chen (Symmetry, 2021)