Na mmiri dị n'okpuru mmiri ( Treadmilly ) usoro ọgwụgwọ anụ ahụ, ogologo oge mmega ahụ dị na nguzogide mmiri ahụ. Enwere ike iji ihe a na-ebute ntachi obi siri ike, nke na-eme ka a ga-eme ka ụlọ ọgwụ nke onye ọrịa mee ihe n'ụlọ ọgwụ, klọb ahụike, ụlọ, na jets nkeonwe.