L-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature.
L-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature.
复制标题
DOI：
10.1007/s00421-018-3970-4
复制
发表时间：
2018-11
影响因子：
3
通讯作者：
Waldron M
中科院分区：
文献类型：
--
作者：
Jeffries O;Goldsmith M;Waldron M
本研究调查了在高温条件下（35°C）基线运动持续时间的后期（~ 85%）服用l-薄荷醇漱口水和冰浆对疲劳时间的影响。10名男性参与者在70% Wmax下进行了4次疲劳时间（TTE）试验。在随机交叉设计中，(1)安慰剂味无热量漱口水，(2)l-薄荷醇漱口水（0.01%），或(3)冰摄入（1.25 g kg - 1），占受试者基线TTE的85%。记录疲劳时间、核心和皮肤温度、心率、感知力评分、热舒适和热感觉。从基线TTE的85%给药开始，相对于基线表现，运动时间延长了1%（安慰剂，15秒），6% （l-薄荷醇，82秒）和7%（冰，108秒）（P = 0.036）， l-薄荷醇和冰之间没有差异（P = 0.00 .05）。核心温度、皮肤温度和心率随时间增加而增加，但各组间差异无统计学意义（P < 0.05）。热感觉差异不显著，但表现出较大的效应量（P = 0.080; = 0.260）。这些结果表明，热冷却和非热冷却的口腔刺激对高温下的穷尽运动具有同等和直接的行为影响，而不是生理影响。
This study investigated the effects of l-menthol mouth rinse and ice slurry ingestion on time to exhaustion, when administered at the latter stages (~ 85%) of baseline exercise duration in the heat (35 °C). Ten male participants performed four time to exhaustion (TTE) trials on a cycle ergometer at 70% Wmax. In a randomized crossover design, (1) placebo-flavored non-calorific mouth rinse, (2) l-menthol mouth rinse (0.01%), or (3) ice ingestion (1.25 g kg−1), was administered at 85% of participants’ baseline TTE. Time to exhaustion, core and skin temperature, heart rate, rating of perceived effort, thermal comfort and thermal sensation were recorded. From the point of administration at 85% of baseline TTE, exercise time was extended by 1% (placebo, 15 s), 6% (l-menthol, 82 s) and 7% (ice, 108 s), relative to baseline performance (P = 0.036), with no difference between l-menthol and ice (P > 0.05). Core temperature, skin temperature, and heart rate increased with time but did not differ between conditions (P > 0.05). Thermal sensation did not differ significantly but demonstrated a large effect size (P = 0.080; = 0.260). These results indicate that both thermally cooling and non-thermally cooling oral stimuli have an equal and immediate behavioral, rather than physiological, influence on exhaustive exercise in the heat.
登录
查看更多内容
DOI：
10.1249/mss.0b013e318178465d
发表时间：
2008-09-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Lee, Jason K. W.;Shirreffs, Susan M.;Maughan, Ronald J.
通讯作者：
Maughan, Ronald J.
DOI：
10.1249/00005768-198205000-00012
发表时间：
1982-01-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
BORG, GAV
通讯作者：
BORG, GAV
影响因子：
3
作者：
Baker, Lindsay B.;Lang, James A.;Kenney, W. Larry
通讯作者：
Kenney, W. Larry
影响因子：
2.7
作者：
Mundel, Toby;King, Jenny;Jones, David A.
通讯作者：
Jones, David A.
影响因子：
3
作者：
Mundel, Toby;Jones, David A.
通讯作者：
Jones, David A.