Body
temperatures and cutaneous blood
flow.
Rectal temperature was recorded at rest and every 30 min during exercise
by using a thermistor (YSI 401) inserted 12 cm pastthe anal
sphincter. Mean skin temperature was calculated at restand every 30 min during exercise,
by using weighted-average recordings(20) from six
skin thermistors (YSI 409A). Cutaneous blood flowwas measured
continuously by using a laser-Doppler flowmeter (ALF1) (24). The skin
probe was taped to the ventral side of theright forearm. Because the
effect of movement on recording wasobserved to be minimal,
laser-Doppler recordings were not filtered.Cutaneous blood flow was
reported as a percentage of the valuerecorded during the minute
before the exerciseonset.