It was the practice of the Prophet (peace and blessings be upon him):
"He (peace and blessings be upon him) walked in such a manner that it was clear he was neither weak nor lazy."
Hadith Referenceصحیح الجامع الصغیر / حرف الكاف / 5016
Hadith Gradingالألبانی:حسن
Hadith Takhrij[ابن عساكر] عن ابن عباس. الصحيحة ٢١٤٠: المخلص، أبو الحسن الحربي.