Since foot height is a part of overall body height anything that increases foot height will increase overall height.

DEFORMATION OF FOOT IN TAEKWONDO ATHLETES

“A total of 114 male high school and college elite Taekwondo athletes participated in this study. Their mean age, career, height and mass are 17.4±1.6 years, 7.3±3.2 years, 174.3±4.0 cm and 64.7±9.7 kg, respectively. Twelve anthropometric measurements of both feet were obtained from each participant. Paired samples t-tests were used to assess significant differences between left and right foot dimension. In addition, the U.S. Army foot anthropometric data set was used after normalization of the measurements by foot length to compare Taekwondo athletes’ feet with the normal population.”<-it is possible that these people were still growing though.

“Taekwondo players have a slightly longer left foot than right foot{although bone length is not the only determinant of foot length sometimes it s due to flatter arches}. Although the mean of those differences was less than 1 mm, 21 of 114 athletes (18.4%) had a difference greater than 5 mm, which could be of considerable importance for shoe last design. While the left foot has longer ball of foot length and higher medial malleolus height, the right foot has longer lateral length and greater height{this should increase overall body height if not for the assymetry between right and left}. The ball of foot height and circumference and instep circumference were greater for the right foot than left foot, which may indicate bone”

“Also the Taekwondo athletes’ feet has a higher and wider ball of foot, a longer length of the outside ball of foot, and a greater instep and ball of foot circumference than general population from U.S. Army data”<-a taller ball of foot should increase overall body height.

“right foot is used more than left foot for kicking, it shows hypertrophy in foot height and circumference. This deformation may be caused by numerous impacts on the instep during the round kicking motion which is the most frequently used attack skill in Taekwondo.”<-kicking is a form of lateral impact. And lateral impact is likely to be highly effective in stimulating bone according to fluid flow theory.

Note that the actual bones that make up the height of the foot are taller like the lateral and medial malleolus. although the lateral and medial malleolus are only part of the tibia and fibula and actual whole bones.

this study shows that lateral impact may be able to lengthen bones.