Figure 2
From: Strength training in soccer with a specific focus on highly trained players
Gains in strength and motor abilities of high level players after different training modes (5 to 10 weeks). x and dashed x symbols represent the change of direction ability performance after traditional resistance exercises programs (TRE) [2] and combined programs (COM) [38], respectively; filled and unfilled squares represent the 40-m sprint performance after TRE [1,2] and COM [6], respectively; + and dashed + symbols represent the 10-m sprint performance after TRE [2,37] and COM [22,38], respectively; filled and unfilled triangles represent the four bounce test performance after TRE [6] and COM [6], respectively; filled and unfilled rhombi represent the squat jump performance after TRE [1,14] and COM [6,22], respectively; and filled and unfilled circles represent the countermovement jump performance after TRE [2,37] and COM [22], respectively.