Figure 6.

An example screenshot of soccer kicking analysis: (a) toe-off (${\mathrm{L}}_{\mathrm{S}}^3$); (b) maximum hip extension (${\mathrm{L}}_{\mathrm{S}}^5$); (c) ball impact (${\mathrm{L}}_{\mathrm{S}}^7$); (d) end of kicking (${\mathrm{L}}_{\mathrm{S}}^{11}$); (e) top view image for checking ball-foot relationship; and, (f) detected motion sequences for review.