Effects of human menstrual cycle on thermoregulatory vasodilation during exercise

Hirata, Kozo; Nagasaka, Tetsuo; Hirai, Atsuo; Hirashita, Masami; Takahata, T.; Nunomura, Tadahiro

doi:10.1007/bf00943341

Cited by 59 publications

(20 citation statements)

References 18 publications

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“…It is known that a number of the physiological processes in a woman's body are related to the different phases of the ovulatory cycle. The most important of these include changes in the levels of gonadotropins, estrogens and progesterone in the blood, differences in water balance, and fluctuations in body temperature, which is approximately 0.4°C higher in the luteal phase than in the follicular phase of the cycle [8][9][10][11]. Among the examined women who used hormonal contraceptives, the phase of the menstrual cycle was not that significant for body temperature, as reports document a leveling of temperature over the entire cycle.…”

Section: Methodsmentioning

confidence: 78%

Thermal maps of young women and men

Chudecka

Lubkowska

2015

Infrared Physics & Technology

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Section: Methodsmentioning

confidence: 78%

Thermal maps of young women and men

Chudecka

Lubkowska

2015

Infrared Physics & Technology

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“…The menstrual cycle for each subject, however, has not been identified. As the menstrual cycle has been shown to affect the vasoreactivity of the skin (HASLAG and HERTZMAN, 1965;MURAKAMI et al, 1973;HIRATA et al, 1986) and the hunting reaction (MURAKAMI et al, 1973), it may also exert some influences on the post-prandial hunting response. However, to our knowledge, no study of this point has been documented.…”

Section: Discussionmentioning

confidence: 99%

Influence of food intake on cold-induced vasodilatation of finger.

Takano

Kotani

1989

Jpn.J.Physiol

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When the finger is immersed in ice water, a sharp fall of the skin temperature is followed by its gradual rise due to the cold-induced vasodilatation (CIVD). The present study was attempted to examine whether the CIVD is affected by a small increase in internal heat load due to the dietary thermogenesis. A 10-min immersion of the left middle finger in ice water was performed at room temperature of 25-26 °C on 12 female subjects 60 min before, and 30 and 90 min after ingestion of a meal containing 700 kcal. Skin temperature of the finger and Oz consumption were continuously measured before, during, and after the immersion. A CIVD index was measured using the data of the rising phase of skin temperature during the immersion. The CIVD index, a newly developed parameter in the present study, could reflect both the rapidity and the magnitude of CIVD response during the immersion. Compared with pre-prandial values, the Oz consumption and the CIVD index significantly increased by 15 and 69%, respectively, at 30 min and by 15 and 50% at 90 min of the post-prandial period. Esophageal temperature was studied on another 5 subjects (1 male and 4 females) and it rose by 0.27°C during the 90-min post-prandial period. The results, in support of the involvement of the central nervous system control in CIVD, suggest that the central process is so sensitive as to operate in a 15% increase in heat load into the body.

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“…As shown in Fig. 1, the relationship between CVC and T es was analyzed by Wtting two regression equations to the individual data (Hirata et al 1986;Takeno et al 2001;Yamazaki and Sone 2003a). The Wrst regression line (Slope 1) was determined using the data from onset of exercise until the abrupt increase in CVC.…”

Section: Measurement and Analysismentioning

confidence: 99%

Different vascular responses in glabrous and nonglabrous skin with increasing core temperature during exercise

Yamazaki

Sone

2006

Eur J Appl Physiol

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To elucidate the characteristics of vasomotor control in glabrous and nonglabrous skin during dynamic exercise, we compared the vascular responses in both areas to increasing core temperature during the cycle exercise for 30 min at different intensities in the range 20-60% of peak oxygen consumption (VO(2peak)) in a total of 13 male and four female subjects in two experimental protocols. Skin blood flow was monitored using laser Doppler flowmetry. In protocol 1, the slope of the relationship between esophageal temperature (T (es)) and cutaneous vascular conductance (CVC) in the early phase of the exercise decreased (P < 0.05) with increasing exercise intensity at glabrous sites (palm) but not nonglabrous sites (dorsal hand). In protocol 2, to examine whether a difference in vascular responses in the two areas is due to the adrenergic vasoconstrictor system, the release of norepinephrine from adrenergic nerves in forearm and palmar skin was blocked locally by iontophoresis of bretylium tosylate (BT). The administration of BT diminished completely the change of CVC in the palm during the exercise but did not alter the response in the forearm compared with the untreated site. In the two areas, neither the T (es) threshold for vasodilation nor the change in CVC above the threshold in the middle and late phase of the exercise was influenced by the intensity of the exercise. These results suggest that, in the early phase of the exercise, light-to-moderate exercise reduces in an intensity-dependent manner the thermal sensitivity for vasodilation in glabrous skin but not nonglabrous skin via an adrenergic vasoconstrictor pathway.

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Effects of human menstrual cycle on thermoregulatory vasodilation during exercise

Cited by 59 publications

References 18 publications

Thermal maps of young women and men

Thermal maps of young women and men

Influence of food intake on cold-induced vasodilatation of finger.

Different vascular responses in glabrous and nonglabrous skin with increasing core temperature during exercise

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