break (your) stride
From Longman Dictionary of Contemporary Englishbreak (your) stridebreak (your) strideespecially American EnglishINTERRUPT# a) to begin moving more slowly or to stop when you are running or walking b) if you break your stride, or if someone or something breaks it, you are prevented from continuing in what you are doing Collins dealt with the reporters’ questions without breaking stride. → strideExamples from the Corpusbreak (your) stride• Wonderful girl; didn't even seem to break stride.• Stunned, the woman broke stride and spun around.