An Investigation into the Relation between the Technique of Movement and Overload in Step Aerobics

Table 2

Mean values and standard deviation (SD) angular variables obtained by the instructors and nonprofessionals when the vGRF is in its maximum value.

Variable	Upper plate—stepping up		Lower plate—stepping down
	Instructors	Nonprofessionals	Instructors	Nonprofessionals
	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD
Foot dorsal flexion [°]	16.9 ± 3.8	16.9 ± 4.3	19.7 ± 5.0	18.5 ± 5.5
Foot adduction [°]	−10.4 ± −9.0	−16.9 ± −8.4	−16.1 ± −8.1	−22.2 ± −9.3
Knee joint flexion[°]	47.5 ± 7.0	45.8 ± 8.3	17.5 ± 8.0	14.7 ± 9.9
Trunk flexion [°]	3.9 ± 2.4	5.8 ± 2.6	8.7 ± 2.4	9.5 ± 1.9

Statistically significant difference for .