飲食控制沒那麼嚴重 - 減肥
By Frederica
at 2016-10-21T09:37
at 2016-10-21T09:37
Table of Contents
減肥靠『七分飲食,三分運動』
這句話一直在想減肥的人們間流傳著,但這是正確的嗎?
2016年五月Dr.David John Hume在The American Journal of Clinical Nutrition發表了
一篇熱量攝取與熱量消耗的研究,該期刊在2015年的Impact Factor為6.703
根據熱力學定律-能量守恆,有一派人一直相信著要減肥就是要節食,即使運動也要。
然而這個實驗證實了人體減肥並不是簡單的熱量加減,背後有著更複雜的機制等著被解答
此實驗為長期追蹤實驗,追蹤三年,也因為如此,飲食控制與熱量消耗記錄皆相當困難與
執行,但研究者盡量將誤差降到最低,完成本篇研究。
簡單說明實驗流程
受試者為健康無用藥或特殊疾病之青年,BMI介於18~25,前測計算其熱量攝取(total
daily energy intake, TDEI)與總熱量消耗(total daily energy expenditure, TDEE)
,分成三個組別:
1.low flux (TDEI<TDEE)
2.mid flux (TDEI=TDEE)
3.high flux (TDEI>TDEE)
實驗沒有任何介入,僅觀察三種不同生活型態的族群在未來三年體脂肪的變化
http://tinyurl.com/zzrfy39
簡單說明結果就是攝取量大於消耗量的族群三年後體脂肪顯著下降,而另外兩組在平均上
有上升,但未達顯著差異。
這實驗說明了,飲食沒有你想的那麼嚴重,即使你吃的熱量超過你所消耗的,體脂肪還是
會下降,但這代表可以肆無忌憚的吃了嗎?根據本篇研究無法給予這題回答,觀察high
flux 組別的熱量消耗,是可怕的2821 kcal/day,顯示該組進行非常大量運動或者生活型
態為高活動量型。根據其他篇的研究,規律的長期運動下,自主熱量攝取會持平或下降,
達成熱量赤字,最後體重與體脂肪也會下降,然而,產生的機制推論與本篇研究相抵,需
要更多研究才能說明人體減肥的關鍵到底為何。
飲食七分,運動三分這句話或許是錯誤的,並且引導大眾往節食的方向進行,但有更多的
證據顯示,高強度運動對於減肥的幫助才是最好的,但高強度運動並不適合"所有"人,給
與大眾的建議應該為飲食與運動並重。
最後,有疑問歡迎討論,但不要變吵架版謝謝大家。
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減肥
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