Relationship between physical activity time and intramuscular adipose tissue content of the thigh muscle groups of younger and older men.
Relationship between physical activity time and intramuscular adipose tissue content of the thigh muscle groups of younger and older men.
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DOI：
10.1038/s41598-021-99126-x
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发表时间：
2021-10-05
影响因子：
4.6
通讯作者：
Akima H
中科院分区：
文献类型：
--
作者：
Ogawa M;Tanaka N;Yoshiko A;Oshida Y;Koike T;Akima H
我们研究了体力活动对年轻和老年男性大腿肌肉群中肌肉组织大小和肌内脂肪组织（IntraMAT）含量的影响。20名年轻男性和20名老年男性参与了这项研究。使用磁共振成像测量股四头肌（QF）、腘绳肌（HM）、髋内收肌（AD）和大腿中部的肌肉组织横截面积（CSA）和IntraMAT含量。使用三轴加速度计测量体力活动时间，并根据任务代谢当量（MET）确定4个体力活动水平，包括久坐（≤ 1.5 MET）、轻度强度（≤ 2.9 MET）、中度强度（3.0-5.9 MET）和剧烈强度（≥ 6.0 MET）。两组的体力活动参数与肌肉组织CSA之间均无显著相关性。在年轻组中，三个肌肉群（QF、AD和HM）和整个大腿的IntraMAT含量与中等强度体力活动的时间呈负相关（所有比较的rs =-0.625至-0.489，P < 0.05），但在老年组中不相关。这些结果表明，IntraMAT蓄积与年轻男性的中等体力活动量相关。
We investigated the effect of physical activity on muscle tissue size and intramuscular adipose tissue (IntraMAT) content in the thigh muscle groups of younger and older men. Twenty younger and 20 older men participated in this study. The muscle tissue cross-sectional area (CSA) and the IntraMAT content in the quadriceps femoris (QF), hamstrings (HM), hip adductors (AD), and mid-thigh total were measured using magnetic resonance imaging. The physical activity time was measured using a triaxial accelerometer, and four levels of physical activity were determined depending on the metabolic equivalent of task (METs), including sedentary (≤ 1.5 METs), light intensity (≤ 2.9 METs), moderate intensity (3.0–5.9 METs), and vigorous intensity (≥ 6.0 METs). No significant correlation was observed between the physical activity parameters and muscle tissue CSA in both groups. The IntraMAT content of the three muscle groups (QF, AD, and HM) and the total thigh was inversely correlated with the time of moderate-intensity physical activity (rs = − 0.625 to − 0.489, P < 0.05, for all comparisons) in the young group, but not in the older group. These results indicate that IntraMAT accumulation was associated with the amount of moderate-physical activity in younger men.
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影响因子：
--
作者：
Hogrel, Jean-Yves;Barnouin, Yoann;Carlier, Pierre G.
通讯作者：
Carlier, Pierre G.
影响因子：
3
作者：
Park, Hyuntae;Park, Sungjin;Aoyagi, Yukitoshi
通讯作者：
Aoyagi, Yukitoshi
影响因子：
--
作者：
Leskinen, T.;Sipila, S.;Kujala, U. M.
通讯作者：
Kujala, U. M.
DOI：
10.1152/ajpendo.1996.271.6.e983
发表时间：
1996-12-01
影响因子：
5.1
作者：
Sial, S;Coggan, AR;Klein, S
通讯作者：
Klein, S
影响因子：
3
作者：
Akima, Hiroshi;Yoshiko, Akito;Oshida, Yoshiharu
通讯作者：
Oshida, Yoshiharu