Des chercheurs ont testé les effets de la capsaïcine sur la performance sportive. La capsaïcine est le composé qui donne au piment son piquant et son mordant. Mais la capsaïcine a d’autres secrets à nous dévoiler.
La capsaïcine a en effet d’autres pouvoirs que ceux de nous « brûler » la bouche ! D’ailleurs, la capsaïcine est considérée comme produit dopant chez les chevaux. Leur badigeonner les jambes avec de la pommade à la capsaïcine les sensibilise à la douleur et les oblige à bien lever les jambes à l’approche des obstacles.
L'étude
La capsaïcine et ses analogues stimulent le TRPV1 (Transient Receptor Potential Channel Vanilloid type-1), un récepteur que l’on trouve dans le système nerveux central (cerveau), dans le tissu adipeux périphérique, dans l’intestin et dans le muscle. Avec de telles cibles, on imagine vite le potentiel pour améliorer les performances sportives.
Il avait été observé chez le rongeur que la capsaïcine pouvait améliorer les performances en endurance via un effet métabolique (majoration de l’utilisation des lipides et épargne du glycogène musculaire) et via des modifications cellulaires responsables d’une majoration des interactions actine-myosine au sein du muscle résultant en une plus grande production de force.
Pour éclaircir l’impact de la capsaïcine sur nos performances, les chercheurs ont donc testé la capsaïcine sur des épreuves de 400 m et 3000 m en course à pied. Pour cela, douze sportifs ont été recrutés pour participer à quatre épreuves (400 m avec placebo, 400 m avec capsaïcine, 3000 m avec placebo et 3000 m avec capsaïcine).
Les quatre épreuves étaient réalisées dans un ordre aléatoire. Les sportifs avalaient une gélule (placebo ou 12 mg de capsaïcine sans savoir laquelle) 45 min avant l’effort (temps nécessaire pour que la capsaïcine atteigne sa concentration sanguine maximale après ingestion). Le temps d’élimination de la capsaïcine est d’environ 105 min.
Pour info, la teneur en capsaïcine du piment varie de 0,1 mg (chili pepper) à 2,5 mg/g (piment rouge). Dans les pays les plus « pimentés » (Inde, Mexique, Thaïlande) les habitants mangent de 25 à 200 mg de capsaïcine par jour.
Résultats
La capsaïcine pimente bien les performances ! Elle a permis aux sportifs de courir le 3000 m plus rapidement (893 secondes vs 915 secondes), tout comme le 400 m (66,4 secondes vs 67,1 secondes).
Lors de ces deux types d’épreuve, la capsaïcine ne semblait en revanche pas influer sur la fréquence cardiaque maximale à l’effort, ni sur la perception de l’effort (RPE).
Référence
Costa LA, Freitas MC, Cholewa JM, et al. Acute Capsaicin Analog Supplementation Improves 400 M and 3000 M Running Time-Trial Performance. Int J Exerc Sci. 2020;13(2):755‐765. Published 2020 May 1.
I am always looking for some free kinds of stuff over the internet. There are also some companies which give free samples. But after visiting your blog, I do not visit too many blogs. Thanks. plano sober living https://thecardinalhousefoundation.org/
That is thus gorgeous and also imaginative. I recently really like the particular shades and also anyone who receives that inside the email will probably be beaming. agenolx daftar
Thank you regarding offering latest revisions about the problem, My partner and i enjoy examine a lot more. Removals Blackpool
That you are allowed to write-up bands, but is not inbound links, except there're okayed in addition to with subject matter. 일산요정
thanks for the tips and information..i really appreciate it.. PRO IPTV PREMIUM
Positive site, where did u come up with the information on this posting?I have read a few of the articles on your website now, and I really like your style. Thanks a million and please keep up the effective work. Thruster blast
You may be permitted to blog post details, though not back-links, with regard to they are really sanctioned and even at area. 슬롯커뮤니티 https://yourbookmarklist.com/story18138713/%EC%8A%AC%EB%A1%AF%EB%AC%B4%E...
Thanks for a very interesting blog. What else may I get that kind of info written in such a perfect approach? I’ve a undertaking that I am simply now operating on, and I have been at the look out for such info. วิเคราะห์บอลวันนี้: เจาะลึกทุกคู่ ทุกลีก https://sportnews654.com/category/วิเคราะห์บอล/
Great write-up, I am a big believer in commenting on blogs to inform the blog writers know that they’ve added something worthwhile to the world wide web!.. small black radiator
Pretty good post. I have just stumbled upon your blog and enjoyed reading your blog posts very much. I am looking for new posts to get more precious info. Big thanks for the useful info. access to cash
Wonderful posting, Thanks a ton to get spreading The following awareness. Wonderfully authored posting, doubts all of blog owners available precisely the same a higher standard subject material just like you, online has got to be improved site. I highly recommend you stay the best! stanford
hey there and thank you for your information – I have definitely picked up something new from right here. I did however expertise several technical issues using this website, since I experienced to reload the site lots of times previous to I could get it to load correctly. I had been wondering if your hosting is OK? Not that I am complaining, but sluggish loading instances times will often affect your placement in google and can damage your quality score if advertising and marketing with Adwords. Anyway I am adding this RSS to my e-mail and could look out for a lot more of your respective exciting content. Ensure that you update this again very soon.. noodle magazine
Fine place, a an exceptionally amazing webpage that there is at this point, stick to beneficial financial job, shall be to come back. 인천출장마사지 https://www.gandathai.com/properties-2
This unique is a fantastic put up I just spotted using show it again. Suggest whatever I wanted to ascertain optimism through forthcoming you are likely to remain for the purpose of showing this terrific put up. Enhancing Digital Payments
Usual visitors here's the easiest way to thank you so much in your effort and hard work, which unfortunately is the reason why I will be touring the location day to day, in need of different, appealing advice. Countless, bless you! Suscripción IPTV
We suggest which will it's a an amazing blog post to a very good guy, so i'm very happy to find out it. 한게임머니상
What a fantabulous post this has been. Never seen this kind of useful post. I am grateful to you and expect more number of posts like these. Thank you very much. cbridge
This is my first visit to your web journal! We are a group of volunteers and new activities in the same specialty. Website gave us helpful data to work. 해운대 고구려
So i'm certainly very happy acquire this url and even made like analyzing invaluable articles and reviews released these. That options belonging to the novelist is remarkable, bless you in the have. 카지노 솔루션
Bless you designed for presenting modern up-dates concerning the anxiety, As i watch for browse alot more. 토토임대