Menstrual phase does not influence ventilatory responses to group III/IV afferent signaling in eumenorrheic young females.
Menstrual phase does not influence ventilatory responses to group III/IV afferent signaling in eumenorrheic young females.
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DOI：
10.1016/j.resp.2021.103712
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发表时间：
2021-10
影响因子：
2.3
通讯作者：
Keller-Ross M
中科院分区：
文献类型：
--
作者：
Lee E;Vera K;Asirvatham-Jeyaraj N;Chantigian D;Larson M;Keller-Ross M
雌激素可以减少交感神经活动，但其对III/IV组传入激活的分钟通气量（VE）的影响尚不清楚。本研究探讨了雌激素对VE在下肢运动与组III/IV激活的影响。雌性在卵泡期和排卵期月经期完成了两次相同的访视。9名参与者（年龄25±4岁）进行了3分钟的基线稳态踏车测力计，然后通过近端大腿袖带充气至20、60和100 mmHg（随机）进一步激活III/IV组传入神经2分钟，每次闭塞之间循环5分钟。代谢反射通过运动后循环阻断来隔离。连续测量通气量，并记录每个阶段的感觉劳累（RPE）评分。在休息和运动时，卵泡期的VE（p<0.001）和潮气量（p=0.033）高于排卵期。各阶段的分钟通气量、VT和呼吸频率（RR）与能量反射和代谢反射激活相似。袖带阻断100 mmHg时，卵泡期VE较基线增加26.3±7.0 L/min（p<0.001），排卵期VE较基线增加25.3±7.7 L/min（p<0.001），两个阶段之间无差异（p>0.05）; RR和VT随阻断增加相似，也无阶段差异。在女性月经来潮患者中，月经期影响通气，但不影响对III/IV组隔离的呼吸反应。
Estrogen can reduce sympathetic activity, but its effects on minute ventilation (VE) with group III/IV afferent activation remain unclear. This study examined the influence of estrogen on VE during lower-extremity exercise with group III/IV activation. Females completed two identical visits in follicular and ovulatory menstrual phases. Nine participants (age 25±4 years) performed three minutes of baseline steady-state cycle ergometry and then group III/IV afferents were further activated with proximal thigh cuffs inflated to 20, 60, and 100mmHg (randomized) for two minutes with five minutes of cycling between each occlusion. Metaboreflex was isolated by post-exercise circulatory occlusion. Ventilation was measured continuously and rating of perceived exertion (RPE) was recorded for each stage. During rest and exercise, VE (p<0.001) and tidal volume (VT) (p=0.033) were higher in the follicular than ovulatory phase. Minute ventilation, VT, and respiratory rate (RR) with ergoreflex and metaboreflex activation were similar across phases. With cuff occlusion of 100mmHg, VE increased from baseline by 26.3±7.0 L/min in the follicular phase (p<0.001) and by 25.3±7.7 L/min in the ovulatory phase (p<0.001), with no difference between phases (p>0.05); RR and VT increased similarly with occlusion, also with no phase differences. In eumenorrheic females, menstrual phase influences ventilation but not ventilatory responses to group III/IV isolation.
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影响因子：
2.3
作者：
Behan, Mary;Wenninger, Julie M.
通讯作者：
Wenninger, Julie M.
影响因子：
3.3
作者：
Amann, Markus;Blain, Gregory M.;Dempsey, Jerome A.
通讯作者：
Dempsey, Jerome A.
影响因子：
3.3
作者：
Inamdar, SR;Eyster, KM;Schlenker, EH
通讯作者：
Schlenker, EH
DOI：
10.1249/mss.0000000000000797
发表时间：
2016-03-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Keller-Ross, Manda L.;Sarkinen, Andrielle L.;Olson, Thomas P.
通讯作者：
Olson, Thomas P.
影响因子：
2.5
作者：
Minahan, Clare;O'Neill, Hailey;Sabapathy, Surendran
通讯作者：
Sabapathy, Surendran