Effects of post-exercise intake of exogenous lactate on energy substrate utilization at rest.

Physical activity and nutrition Pub Date : 2024-03-01 Epub Date: 2024-03-31 DOI:10.20463/pan.2024.0001
Taeho Kim, Deunsol Hwang, Sunghwan Kyun, Inkwon Jang, Sung-Woo Kim, Hun-Young Park, Kiwon Lim, Charyong Kim, Jisu Kim
{"title":"Effects of post-exercise intake of exogenous lactate on energy substrate utilization at rest.","authors":"Taeho Kim, Deunsol Hwang, Sunghwan Kyun, Inkwon Jang, Sung-Woo Kim, Hun-Young Park, Kiwon Lim, Charyong Kim, Jisu Kim","doi":"10.20463/pan.2024.0001","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>This study investigated the effects of exogenous lactate intake on energy metabolism during 1 h of rest after acute exercise.</p><p><strong>Methods: </strong>Eight-week-old ICR mice were randomly divided into four groups: SED (no treatment), EXE (exercise only), LAC (post-exercise oral lactate administration), and SAL (post-exercise saline administration) (n=8 per group). The exercise intensity was at VO2max 80% at 25 m/min and 15° slope for 50 min. After acute exercise, the LAC and SAL groups ingested lactate and saline orally, respectively, and were allowed to rest in a chamber. Energy metabolism was measured for 1 h during the resting period.</p><p><strong>Results: </strong>LAC and SAL group mice ingested lactate and saline, respectively, after exercise and the blood lactate concentration was measured 1 h later through tail blood sampling. Blood lactate concentration was not significantly different between the two groups. Energy metabolism measurements under stable conditions revealed that the respiratory exchange ratio in the LAC group was significantly lower than that in the SAL group. Additionally, carbohydrate oxidation in the LAC group was significantly lower than that in the SAL group at 10-25 min. No significant difference was observed in the fat oxidation level between the two groups.</p><p><strong>Conclusion: </strong>We found that post-exercise lactate intake modified the respiratory exchange ratio after 1 h of rest. In addition, acute lactate ingestion inhibits carbohydrate oxidation during the post-exercise recovery period.</p>","PeriodicalId":74444,"journal":{"name":"Physical activity and nutrition","volume":"28 1","pages":"1-6"},"PeriodicalIF":0.0000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11079383/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical activity and nutrition","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.20463/pan.2024.0001","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/3/31 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Purpose: This study investigated the effects of exogenous lactate intake on energy metabolism during 1 h of rest after acute exercise.

Methods: Eight-week-old ICR mice were randomly divided into four groups: SED (no treatment), EXE (exercise only), LAC (post-exercise oral lactate administration), and SAL (post-exercise saline administration) (n=8 per group). The exercise intensity was at VO2max 80% at 25 m/min and 15° slope for 50 min. After acute exercise, the LAC and SAL groups ingested lactate and saline orally, respectively, and were allowed to rest in a chamber. Energy metabolism was measured for 1 h during the resting period.

Results: LAC and SAL group mice ingested lactate and saline, respectively, after exercise and the blood lactate concentration was measured 1 h later through tail blood sampling. Blood lactate concentration was not significantly different between the two groups. Energy metabolism measurements under stable conditions revealed that the respiratory exchange ratio in the LAC group was significantly lower than that in the SAL group. Additionally, carbohydrate oxidation in the LAC group was significantly lower than that in the SAL group at 10-25 min. No significant difference was observed in the fat oxidation level between the two groups.

Conclusion: We found that post-exercise lactate intake modified the respiratory exchange ratio after 1 h of rest. In addition, acute lactate ingestion inhibits carbohydrate oxidation during the post-exercise recovery period.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
运动后摄入外源性乳酸盐对静息时能量底物利用的影响。
目的:本研究探讨了摄入外源性乳酸盐对急性运动后休息 1 小时内能量代谢的影响:将 8 周大的 ICR 小鼠随机分为 4 组:方法:将八周龄的ICR小鼠随机分为四组:SED组(无处理)、EXE组(仅运动)、LAC组(运动后口服乳酸盐)和SAL组(运动后口服生理盐水)(每组n=8)。运动强度为 VO2max 80%,速度为 25 米/分钟,坡度为 15°,持续 50 分钟。急性运动后,LAC 组和 SAL 组分别口服乳酸盐和生理盐水,并在室内休息。在休息期间测量了1小时的能量代谢:结果:LAC组和SAL组小鼠在运动后分别摄入乳酸盐和生理盐水,1小时后通过尾部采血测量血液乳酸盐浓度。两组小鼠的血液乳酸浓度无明显差异。稳定条件下的能量代谢测量显示,LAC 组的呼吸交换比明显低于 SAL 组。此外,在 10-25 分钟内,LAC 组的碳水化合物氧化率明显低于 SAL 组。结论:我们发现,运动后摄入乳酸盐会改变休息 1 小时后的呼吸交换比。此外,急性乳酸盐摄入会抑制运动后恢复期的碳水化合物氧化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
2.00
自引率
0.00%
发文量
0
期刊最新文献
A scoping review of rapid weight loss in judo athletes: prevalence, magnitude, effects on performance, risks, and recommendations. Effects of fermented oyster extract supplementation on free fatty acid and liver enzymes in older women with obesity. Effects of wearing a KF94 face mask on performance, perceptual parameters, and physiological responses during resistance exercise. Intra-rater and test-retest reliability of videography observation method to check diversion time in Fukuda step test among college going students. Physical activity and nutrient intake levels according to grip strength among single-household elderly in Korea: data from 2014 and 2019 Korea National Health and Nutrition Examination Survey (KNHANES).
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1