Mezue ahịrịokwu na-esonụ: Ọ bụ akụkụ nke ndị otu Danish, nke mechara nke anọ na
otu egwuregwu mmega ahụ na 1908. Afọ anọ ka e mesịrị, o meriri nrite ọla nchara n'egwuregwu gymnastics nke ndị nwoke, ihe omume sistemụ n'efu. N'asọmpi ndị mmadụ n'otu n'otu, ọ gbara onye nke iri atọ.