Figure 3

Individual and mean pre- and post-testing data for a) ventral trunk muscle strength (TMS) test and b) lateral left side TMS test by intervention group (CSTS, core strength training program using stable surfaces; CSTU, core strength training using unstable surfaces). Unfilled circles indicate individual data of the CSTS-group and filled circles indicate mean data of the CSTS-group. Unfilled squares indicate individual data of the CSTU-group and filled squares indicate mean data of the CSTU-group.