間欠的低酸素レジスタンストレーニングが筋肥大および筋機能向上に及ぼす影響

间歇性低氧阻力训练对肌肉肥大和肌肉功能改善的影响

• 批准号: 22700668
• 负责人: 今 有礼
• 金额: $ 2.25万
• 依托单位: National Agency for the Advancement of Sports and Health
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22700668/
• 关键词: 低酸素; レジスタンストレーニング; 成長ホルモン; 筋肥大; 筋力; 筋持久力

近年我々は,低酸素環境で行うレジスタンス運動が蛋白同化作用を持つ成長ホルモンの分泌を常酸素環境よりも増大させることを明らかにした(Kon et al.Med Sci Sports Exerc.2010).本研究では,間欠的低酸素レジスタンストレーニングが筋の適応に及ぼす影響について検討した.健常成人男性16名を対象とし,低酸素(酸素濃度14.4%)レジスタンストレーニング群(HRT群,n=9)または常酸素レジスタンストレーニング群(NRT群,n=7)に分類した.トレーニングには,ベンチプレスおよびレッグプレス(負荷強度:70%IRM,セット数:5セット,セット間・種目間休息:90秒)を用い,8週間(計16回)のトレーニングを実施した.トレーニング前後に大腿部50%部位における筋横断面積,ベンチプレスおよびレッグプレスの最大発揮筋力,レッグプレスの70%1RM負荷における運動量(負荷×回数:筋持久力の指標)を測定した.トレーニング1回目および16回目においては,レジスタンス運動前後に動脈血酸素飽和度(SpO_2)および成長ホルモン濃度を測定した。両群の筋横断面積,最大発揮筋力,運動量はトレーニングにより増加した(p<0.01).トレーニング後の筋横断面積および最大発揮筋力に群間差は認められなかったが,運動量はHRT群の方がNRT群よりも高値を示した(p<0.05).低酸素暴露後のHRT群のS_pO_2はNRT群よりも有意に低値を示した(p<0.01).成長ホルモンは両群ともにレジスタンス運動後に増加した(p<0.05)が,群間差は認められなかった.本研究の結果から,間欠的低酸素レジスタンストレーニングは常酸素レジスタンストレーニングと比較し,筋肥大および筋力増加の程度に影響を及ぼさない可能性があること,筋持久力の向上により効果的である可能性があることが示唆された.

In recent years, we have studied the effect of protein assimilation in the low-acid environment on protein assimilation. The growth enzyme secretes normal acid in the environment, and the environment is sensitive to amino acids (Kon et al.Med Sci Sports Exerc.2010). The purpose of this study is to study the low acid content, low acid content and low acid content in this study. Sixteen healthy adult males were divided into two groups: low acidity (14.4%), low acidity (14.4%), In the first half of the year, the number of cycles (load strength: 70%IRM, number of cycles: 5 cycles, room-to-eye rest: 90 seconds), 8 cycles (16 times), and so on. In the front and back of the thigh, the cross section of 50% of the thigh, the maximum strength of the thigh, the cross section of the thigh, the maximum strength of the thigh. Please check the concentration of serum lipids (SpO_2) before and after the exercise. The cross section of the group of tendons, the maximum strength of the ribs, the amount of movement, the strength of the ribs, the cross section of the ribs, the maximum strength of the tendons, and the amount of movement. On the cross section of the rib, the maximum force of the rib is measured. The difference between the groups of ribs is measured. The amount of movement is measured in the HRT group. The NRT group is displayed in the high section. (pairltfighter 0.05). After exposure to low acidity, HRT group S _ pO_2 NRT group showed that it was intentional to show low acid level. When you grow up, you will increase the number of people in the group after the event (pairltbot 0.05), and the difference between the groups will be different. At the end of this study, the results of this study were as follows: the results of this study were as follows: the results of this study showed that there were significant differences in the results of this study, the results of this study showed that the results of this study showed that there were significant differences in the degree of increase in muscle strength and the possibility of muscle hypertrophy, muscle strength and muscle endurance.