کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2843781 1571108 2006 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of partial body cooling on thermophysiological responses during cycling work in a hot environment
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
Effect of partial body cooling on thermophysiological responses during cycling work in a hot environment
چکیده انگلیسی

1.We measured rectal (Tre), tympanic (Tty), and skin (Tsk) temperatures, skin blood flow (SkBF), local and whole-body sweat rate (SR), heart rate (HR), and thermal sensation in seven men during bicycle exercise for 40 min, with and without two types of cooling.2.An increasing rate in Tty was suppressed by the ice cooling, but not in Tre. By the fan cooling Tty was lowered 0.3 °C. Δ[Tre–Tty] was markedly higher with the fan cooling than with the ice cooling or control.3.Local SR, SkBF and HR were significantly inhibited by both types of cooling, but whole-body SR was not lowered. However, enhancement of evaporative efficiency was observed with the fan cooling. There were improvements of thermal sensation during exercise after both types of cooling.4.As apparent thermoregulatory responses-to-core temperature (Tcore) relation, the relation differed between the control and both cooling trials. Δ [Tre–Tty]-to- and Tre-to-local SR relation slopes were altered in both cooling trials as compared with the control. In all trials, the slope of SkBF–Tty relation was suddenly reduced at approximately 37.5 °C.5.It is concluded that the present study confirms the effectiveness of partial cooling on the human body. We suggest that the beneficial effects of the cooling on the body should be taken into account when designing an adequate training program.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Thermal Biology - Volume 31, Issues 1–2, January 2006, Pages 194–207
نویسندگان
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