Table 1. Characteristic of the groups. Data are means (±SD). Variables Shakehand (n=18) Penhold (n=9) Height (m) 1.76 (0.05) 1.75 (0.5) Mass (kg) 66.4 (8.0) 63.7 (7.8) Age (yr) 19.7 (1.4) 20.4 (1.4) Training experience (yr) 12.0 (2.0) 12.1 (2.1)