Then, {HEAD ~ the user} gets off the bike, removes sweat with a towel and measures {TAIL ~ his weight} with an accurate scale 
Then , { HEAD ~ the user } gets off the bike , removes sweat with a towel and measures { TAIL ~ his weight } with an accurate scale
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH