Brain. Breath. Body.

Therapeutic potential of intermittent hypoxia: a matter of dose

Détails

Catégorie : Respiration et Froid / Breathwork and Cold Exposure

Publication : samedi 28 mars 2020 16:27

Les bénéfices des techniques de respiration comme certains protocoles du Pranayama et de la méthode Wim Hof pourraient en grande partie être basés sur les hypoxies intermittentes qu'elles provoquent. Une analyse très intéressante, "Therapeutic potential of intermittent hypoxia: a matter of dose", résume les effets des hypoxies intermittentes. Lors des hypoxies temporaires et faibles, l'organisme profite pleinement des effets positifs.Les hypoxies sévères en revanche ont des effets négatifs et contraires. En pratiquant des méthodes du type Wim Hof, on reste sans doute largement dans la zone bleue…

The benefits of breathing techniques such as some Pranayama protocols and the Wim Hof method could largely be based on the intermittent hypoxia they cause. A very interesting analysis, "Therapeutic potential of intermittent hypoxia: a matter of dose", summarizes the effects of intermittent hypoxia. In temporary and mild hypoxia, the body takes full advantage of the positive effects, whereas severe hypoxia has negative and opposite effects. By using methods such as Wim Hof, one probably remains largely in the blue zone ... (English version of this paragraph translated with www.DeepL.com)

Renforcement du système immunitaire grâce aux techniques de respiration / Strengthening the immune system through breathing techniques

Détails

Catégorie : Respiration et Froid / Breathwork and Cold Exposure

Publication : mardi 17 mars 2020 08:46

Des techniques de respiration comme la "Wim Hof Method" peuvent fortifier le système immunitaire de manière significative. Dans l'étude principale sur la technique Wim Hof (Voluntary activation of the sympathetic nervous system and attenuation of the innate immune response in humans), il n'a pas seulement été démontré l'effet anti-inflammatoire des techniques de respiration WHM, mais aussi une augmentation plus importante des anti-corps chez les sujets entrainés à la technique. Hannes Zedel, un chercheur spécialisé dans la méthode Wim Hof, présume "Based on the Kox 2014 paper, we (=trained) could assume to have about 10-20% more antibodies via the WHM compared to average people, thereby increasing the chance to identify pathogens more quickly."

Breathing techniques such as the "Wim Hof Method" can significantly strengthen the immune system. In the main study on the Wim Hof technique (Voluntary activation of the sympathetic nervous system and attenuation of the innate immune response in humans), not only the anti-inflammatory effect of WHM breathing techniques was shown, but also a greater increase in antibodies in subjects trained in the technique. Hannes Zedel, a researcher specialized in the Wim Hof method, assumes "Based on the Kox 2014 paper, we (=trained) could assume to have about 10-20% more antibodies via the WHM compared to average people, thereby increasing the chance to identify pathogens more quickly."

The study:
Voluntary activation of the sympathetic nervous system and attenuation of the innate immune response in humans
Matthijs Koxa,b,c,1, Lucas T. van Eijka,c, Jelle Zwaaga,c, Joanne van den Wildenberga,c, Fred C. G. J. Sweepd,Johannes G. van der Hoevena,c, and Peter Pickkersa,ca
https://www.pnas.org/content/pnas/111/20/7379.full.pdf

Supporting Information, Leukocyte and subpopulation concentrations during endotoxemia in control and trained subjects

https://www.pnas.org/content/pnas/suppl/2014/04/30/1322174111.DCSupplemental/pnas.201322174SI.pdf

Better plant based Low Carb ? Dietary carbohydrate intake and mortality: a prospective cohort study and meta-analysis.

Détails

Catégorie : Ketogenic Diet / Healthy diet

Publication : vendredi 6 mars 2020 05:59

Both high and low percentages of carbohydrate diets were associated with increased mortality, with minimal risk observed at 50–55% carbohydrate intake. Low carbohydrate dietary patterns favouring animal-derived protein and fat sources, from sources such as lamb, beef, pork, and chicken, were associated with higher mortality, whereas those that favoured plant-derived protein and fat intake, from sources such as vegetables, nuts, peanut butter, and whole-grain breads, were associated with lower mortality, suggesting that the source of food notably modifies the association between carbohydrate intake and mortality.

https://www.thelancet.com/journals/lanpub/article/PIIS2468-2667(18)30135-X/fulltext

Complications of the Ketogenic Diet

Détails

Catégorie : Ketogenic Diet / Healthy diet

Publication : vendredi 6 mars 2020 05:40

There have been numerous uncontrolled clinical trials, mostly retrospective, which have demonstrated the diet’s efficacy in reducing seizure frequency in children with refractory epilepsy. However, adverse events have not been consistently reported in these studies, and few serious complications caused by the classic or modified KD have been reported. Chapter 9 in this ebook reviews the literature regarding adverse events that have been associated with the KD.

https://www.academia.edu/21509593/Complications_of_the_Ketogenic_Diet

Wim Hof Method, hyperventilation, physiology

Détails

Catégorie : Respiration et Froid / Breathwork and Cold Exposure

Publication : vendredi 31 janvier 2020 07:26

Effects of the hyperventilation phase, sketch to be completed/corrected

La parathyroïdectomie sous hypnose

Détails

Catégorie : Hypnosis, cognitive hypnotherapy

Publication : lundi 13 janvier 2020 22:20

Exemple très intéressant de l'utilisation de l'hypnose. Petit reportage (6 min 40 s) sur une parathyroïdectomie (ablation chirurgicale d'une ou plusieurs glandes parathyroïdes), où l'hypnose, combinée à une anesthésie locale, remplace l'anesthésie générale habituellement utilisée pour ces opérations. La patiente rentre et sort du bloc à pied ...

https://www.youtube.com/watch?v=iVrsRxfCP-U

Etude Froid et Respiration/Méditation G-Tummo: "Thermoregulatory, metabolic, and cardiovascular responses during 88 min of full-body ice immersion – A case study"

Détails

Catégorie : Respiration et Froid / Breathwork and Cold Exposure

Publication : lundi 30 décembre 2019 01:57

Etude très intéressante sur les liens entre respiration Tummo et la tolérance au froid, en exposant le détenteur du record de l'immersion dans la glace à 88 minutes de froid important (autour de 0°C, immersion du corps dans de la glace pilée). Le sujet de l'étude n'est pas Wim Hof, mais au moins une partie de l'équipe de chercheurs avait travaillé sur le cas Wim Hof précédemment. Rappelons que Wim Hof lui-même s'est inspiré au moins partiellement de la méditation Tummo pour élaborer sa Wim Hof Method (WHM).    

Exposure to extreme cold environments is potentially life-threatening. However, the world record holder of full-body ice immersion has repeatedly demonstrated an extraordinary tolerance to extreme cold. We aimed to explore thermoregulatory, metabolic, and cardiovascular responses during 88 min of full-body ice immersion. The findings may suggest that the participant can optimize his thermoregulatory, metabolic, and cardiovascular responses to challenge extreme cold exposure.

Régime cétogène contre les infections pulmonaires ? Feeding mice a high-fat, low-carbohydrate ketogenic diet confers protection in the context of lethal influenza infection.

Détails

Catégorie : Ketogenic Diet / Healthy diet

Publication : lundi 30 décembre 2019 01:04

KD-mediated immune-metabolic integration represents a viable avenue toward preventing or alleviating influenza disease

Our immune responses to infections are influenced by several extrinsic factors, including weather, social interactions, and diet. Here, Goldberg et al. report that feeding mice a high-fat, low-carbohydrate ketogenic diet confers protection in the context of lethal influenza infection. By characterizing the immune response in the lungs, the authors identified that ketogenic diet promoted the expansion of γδ T cells in the lung. Using mice lacking γδ T cells, the authors have established the functional importance of these cells in conferring protection. Their findings suggest that γδ T cells improve barrier function in the lungs by modifying differentiation and function of the airway epithelial cells.

https://immunology.sciencemag.org/content/4/41/eaav2026/tab-pdf

Ketogenic diet does not affect strength performance in elite artistic gymnasts

Détails

Catégorie : Ketogenic Diet / Healthy diet

Publication : lundi 30 décembre 2019 00:58

"Methods: 8 athletes, elite artistic gymnasts (age 20.9 ± 5.5 yrs) were recruited. We analyzed body composition and various performance aspects (...) before and after 30 days of a modified ketogenic diet.

(...)Results: No significant differences were detected between VLCKD and WD in all strength tests. Significant differences were found in body weight and body composition: after VLCKD there was a decrease in body weight (from 69.6 ± 7.3 Kg to 68.0 ± 7.5 Kg) and fat mass (from 5.3 ± 1.3 Kg to 3.4 ± 0.8 Kg p < 0.001) with a non-significant increase in muscle mass.

Conclusions: Despite concerns of coaches and doctors about the possible detrimental effects of low carbohydrate diets on athletic performance and the well known importance of carbohydrates there are no data about VLCKD and strength performance. The undeniable and sudden effect of VLCKD on fat loss may be useful for those athletes who compete in sports based on weight class. We have demonstrated that using VLCKD for a relatively short time period (i.e. 30 days) can decrease body weight and body fat without negative effects on strength performance in high level athletes. "

Méthode Wim Hof: article détaillé et sourcé

Détails

Catégorie : Respiration et Froid / Breathwork and Cold Exposure

Publication : dimanche 30 juin 2019 01:57

Article détaillé sur la méthode Wim Hof, publié par Sascha Burkhardt dans un magazine destiné aux pilotes de parapente : "Une préparation mentale peut améliorer les performances physiologiques et psychologiques dans tous les sports...Le Hollandais Wim Hof s’est fait connaître en tant que "Iceman", battant des records étonnants. Pour conditionner le corps et l’esprit, il a mis au point une méthode qui serait accessible „à tous“ et utilisable dans la vie de tous les jours aussi."