Injin kwale-kwale na'urar horarwa ce da ke kwaikwayon kwale-kwalen ruwa. Kwale-kwalen cikin gida ya rikide ya zama wasan ƙwararru. Injinan kwale-kwalen cikin gida kuma ana kiransu da ergometers (wanda kuma aka sani da Ergo ko ERGO a ƙasashen waje), waɗanda ake amfani da su don auna ƙarfin da 'yan wasa ke kashewa yayin motsa jiki [1].

Injin kwale-kwale yana taimakawa wajen ƙarfafa tsokoki a ƙafafu, kugu, gaɓoɓin sama, ƙirji, da baya. Kowace bugun jini zai kammala matsewa da faɗaɗa gaɓoɓin sama da na ƙasa, kugu da ciki, da baya, wanda ke haifar da motsa jiki na tsoka gaba ɗaya. Motsa jiki na injin kwale-kwale yana da matuƙar amfani ga mutanen da ke da kitse mai yawa a kugu, ciki, da kuma hannun sama.

Lokacin da kake tuƙi, ya kamata ka kula da daidaiton motsinka. Kowace bugun jini da faɗaɗawa ya kamata a yi a wurin, ba tare da tsayawa ba. Tsokokin da ke cikin motsin ba za su miƙe ko su yi ƙarfi gaba ɗaya ba idan girman ya yi ƙanƙanta. Yana kwaikwayon motsin dabi'ar tuƙi kuma ya dace da motsa jiki da wasannin gida, yana motsa tsokoki na hannuwa, ƙafafuwa, kugu, da sauran sassan jiki, yana motsa tsokoki masu shimfiɗawa yadda ya kamata, musamman ƙananan baya, wanda zai iya rage alamun ciwon baya.