ðiːz mˈuːvmənts ʃˌʊd ˈoʊnli biː pɚfˈɔːɹmd wɛn ðə bˈɑːdi ɪz vˈɛɹi wˈɔːɹm; ˈʌðɚwˌaɪz ðeɪ kæn lˈiːd tʊ ˈɪndʒɚɹi.
These movements should only be performed when the body is very warm; otherwise they can lead to injury.