Run or Jump on Springy Stilts

This page is the CodyCross answer for the clue below from Performing Arts, Group 896, Puzzle 4 (Noel Coward).

Question is: Run or Jump on Springy Stilts

and the answer is: POWERBOCK

Word Meaning:

POWERBOCK — To take part in an activity involving running, jumping and performing various acrobatics with the aid of vertically mounted curved springs attached to one's legs for exercise, pleasure or entertainment purposes.

Definitions from Wiktionary.