Relationship between protein intake and resistance training?induced muscle hypertrophy in middle-aged women: A pilot study
Relationship between protein intake and resistance training?induced muscle hypertrophy in middle-aged women: A pilot study
复制标题
中年女性蛋白质摄入量与阻力训练引起的肌肉肥大之间的关系：一项初步研究
DOI：
10.1016/j.nut.2022.111607
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发表时间：
2022
期刊：
影响因子：
4.4
通讯作者：
Fujita Satoshi
中科院分区：
文献类型：
--
作者：
Yasuda Jun;Murata Kao;Hasegawa Tsubasa;Yamamura Mana;Maeo Sumiaki;Takegaki Junya;Tottori Nobuaki;Yokokawa Takumi;Mori Risako;Arimitsu Takuma;Nishikori Shu;Fujita Satoshi
本研究的目的是观察蛋白质的摄入量在每餐和每日总的变化，在瘦组织质量与渐进式阻力运动训练（RET）在健康的中年women.MethodsTwenty-two健康的日本妇女从滋贺，日本招募，和监督全身RET程序进行了16周，每周两次。膳食摄入量采用3-d膳食记录进行评估。采用双能X线骨密度仪测量全身瘦软组织质量（WLTM）。在调整了年龄、睡眠质量、体力活动和能量摄入后，对蛋白质摄入量与RET引起的WLTM变化进行了多元回归分析。多元回归分析显示，早餐时的基线蛋白质摄入量与WLTM的百分比变化呈负相关（β = -1.598;P= 0.022）。此外，蛋白质摄入量在早餐的百分比变化（β = 0.624;P= 0.018）正相关的百分比变化WLTM.ConclusionIncreasing蛋白质摄入量在早餐可能会导致RET诱导的肌肉肥大的中年妇女，特别是那些谁习惯于消耗低蛋白水平的早餐。然而，未来需要进行更大样本量的研究来确认早餐蛋白质摄入的重要性。
ObjectiveThe aim of this study was to observe the relationship of protein intake at each meal and daily total with change in lean tissue mass with progressive resistance exercise training (RET) in healthy middle-aged women.MethodsTwenty-two healthy Japanese women were recruited from Shiga Prefecture, Japan, and a supervised whole body RET program was conducted twice a week for 16 wk. The dietary intake was assessed using 3-d dietary records. Dual-energy x-ray absorptiometry was used to measure the whole body lean soft tissue mass (WLTM). Multiple regression analysis was performed to examine the relationship between the protein intake and RET-induced changes in the WLTM after adjusting for age, sleep quality, physical activity, and energy intake.ResultsThe 16-wk RET program caused a significant gain in the WLTM (1.46 ± 0.45%,P= 0.004). Multiple regression analysis showed that the baseline protein intake at breakfast was negatively associated with the percent change in the WLTM (β = –1.598;P= 0.022). Additionally, the percent change (β = 0.624;P= 0.018) in protein intake at breakfast was positively associated with the percent change in WLTM.ConclusionIncreasing protein intake at breakfast may contribute to RET-induced muscle hypertrophy in middle-aged women, especially among those who habitually consume low-protein levels at breakfast. However, future studies with larger sample sizes are required to confirm the importance of protein intake at breakfast.