Re: [心得] 生酮飲食雜想 - 集中式生酮飲食

看板MuscleBeach作者dkz321 (Dkz321)時間9年前 (2016/04/25 10:09)推噓18(18推 0噓 84→)

留言102則, 15人參與討論串2/2 (看更多)

由於原文實在太長，因此就不貼原文了。你提到的第一篇論文:Is advice for breakfast consumption justified? Results from a short-term dietary and metabolic experiment in young healthy men. (Martin et al.,2000) 文章實際上要說的是，早餐攝取高熱量與低熱量飲食的比較，結果發現低熱量飲食比較好，而論文的設計沒有用低熱量飲食vs完全不吃。 A high glycaemic response was observed in the morning after the high-energy br eakfast period, while there was a peak of free fatty acids after the low-energ y breakfast. The high-energy breakfast induced a strong inhibition of fat oxid ation throughout the day. Although long-term adaptation to a high-energy break fast cannot be excluded, the high-energy breakfast in this study did not appea r to be favourable to health. Our results do not support the current advice to consume more energy at breakfast. 第二篇提到的論文: Breakfast, blood glucose, and cognition.(Benton D, & Parker PY,1998) Abstract提到：早餐禁食會讓記憶力和認知能力下降，而喝含葡萄糖補充品可逆轉此現象 morning fasting was found to adversely affect the ability to recall a word lis t and a story read aloud, as well as recall items while counting backwards， the decline in performance associated with not eating breakfast was reversed b y the consumption of a glucose-supplemented drink 第三篇提到的論文：Breakfast reduces declines in attention and memory over the morning in schoolchildren.(Wesnes KA et al., 2003) 這篇更讓我笑出來，論文標題本來就已經在談：幫助減緩注意力和記憶力下降的早餐所以不用看內文就已經知道這article不是在論述不吃早餐能提升認知能力不過我還是看了內文，文中提到：只喝葡萄糖飲料而完全不吃早餐，會讓注意力和記憶力下降，不過吃麥片則能維持這方面的認知能力。 The glucose drink and No breakfast conditions were followed by declines in att ention and memory, but the declines were significantly reduced in the two cere al conditions. This study provides objective evidence that a typical breakfast of cereal rich in complex carbohydrates can help maintain mental performance over the morning. 第四篇提到的論文：The effect of a lowcarbohydrate diet on performance, hormona l and metabolic responses to a 30-s bout of supramaximal exercise. 本論文提到： 1.低碳飲食對於無氧運動的表現有害，因為會減少肌肉內的肝糖儲存以及降低葡萄糖分解作用 2.在運動後三天內休息時減少碳水化合物攝取會增加交感神經作用（個人解讀，本文沒提到增加交感神經作用對運動表現會怎麼樣，無法以此來解讀增加交感神經作用就能提升運動表現，其實個人認為，過高的交感神經作用對人體其實是有害的，例如血壓升高，注意力不集中等等） (1) a L-CHO diet is detrimental to anaerobic work capacity, possibly because o f a reduced muscle glycogen store and decreased rate of glycolysis; (2) reduce d carbohydrate intake for 3 days enhances activity of the sympathoadrenal syst em at rest and after exercise. 第五篇提到的論文：Relative effects of glycogen depletion and previous exercise on muscle force and endurance capacity 由於圖書館沒買到相關期刊，無法閱讀全文，只能看研究設計前面的部分文中提到：運動前完全不攝取碳水化合物，或過量的攝取碳水化合物，都可能會讓肌肉持久力下降 Endurance capacity of human vastus lateralis muscles was observed 24 h after h ard exercise followed by either a carbohydrate-restricted or a carbohydrate-lo aded diet (depletion and repletion conditions). In a control condition the sub jects did no previous exercise and ate their normal diet. Each of these condit ions was followed by an experimental protocol in which the five male subjects made a series of alternating 25-s static contractions of each leg at 50% maxim al voluntary contraction until one leg failed to achieve the required force (T lim). Glycogen concentration before the experimental protocol in both legs was significantly lower in the depletion than in the repletion condition. Muscle lactate and creatine phosphate concentrations were within normal limits before the static contractions. The number of contractions the repleted (12.7 +/- 2. 2) and depleted (10.3 +/- 1.5) legs could sustain before Tlim were not differe nt from each other, but both were 35% (P less than 0.05) fewer than the contro l (17.6 +/- 3.0). 歡迎各位幫忙補充這paper的內容第六篇提到的論文：Interactions of cortisol, testosterone, and resistance train ing: influence of circadian rhythms. 嗯，的確沒錯，大部分人傍晚時訓練的狀況其實較好第七篇：Changing concepts on the control of growth hormone secretion in man. 這篇完全沒提到“為什麼吃高GI碳水（化合物）” 整篇Article都在論述生長激素(Growth hormone)，標題早就一目了然告訴讀者這篇不是在講高低GI飲食第八篇：Intracellular mechanisms underlying increases in glucose uptake in res ponse to insulin or exercise in skeletal muscle. 的確沒錯，運動能增加Insulin hypersensitivity，能有效的幫助降血糖本文沒有要引戰的意思，我起初看到你po的文，想說很有心貼出這麼多論文標題，就打算每篇找出來確認後真實性後再佐證你的看法，沒想到事與願違。本篇打臉文重點：沒證據顯示完全不吃早餐、訓練前完全低碳飲食、高GI食物能有效減脂增肌當然，沒證據顯示不代表一定不行，但仍歡迎提供相應的證據出來供大家參考及討論 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 58.115.110.61 ※ 文章網址: https://www.ptt.cc/bbs/MuscleBeach/M.1461550181.A.EE5.html

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