Skeletal Muscle Composition and Glucose Levels in Children Who Are Overweight and Obese

被引:1
作者
Herda, Trent J. [1 ]
Gallagher, Philip M. [2 ]
Miller, Jonathan D. [3 ]
Bubak, Matthew P. [2 ]
Parra, Mandy E. [1 ]
机构
[1] Univ Kansas, Dept Hlth Sport & Exercise Sci, Neuromech Lab, Lawrence, KS 66045 USA
[2] Univ Kansas, Dept Hlth Sport & Exercise Sci, Appl Physiol Lab, Lawrence, KS 66045 USA
[3] Univ Kansas, Dept Hlth Sport & Exercise Sci, Jayhawk Athlet Performance Lab, Lawrence, KS 66045 USA
关键词
obesity; adiposity; insulin resistance; glucose metabolism; ultrasound; ADIPOSE-TISSUE DISTRIBUTION; NECROSIS-FACTOR-ALPHA; SYSTEMIC INFLAMMATION; INSULIN-RESISTANCE; FAT; STRENGTH; ARCHITECTURE; HYPERTROPHY; ASSOCIATION; RELIABILITY;
D O I
10.1123/pes.2020-0018
中图分类号
R72 [儿科学];
学科分类号
100202 ;
摘要
Background: Skeletal muscle is overlooked in the realm of insulin resistance in children who are overweight and obese despite the fact that it accounts for the most glucose disposal. Objectives: Therefore, this study examined fasted glucose levels and muscle cross-sectional area and echo intensity (EI) via ultrasound images of the first dorsal interosseous, vastus lateralis, and rectus femoris in children who are normal weight and overweight and obese aged 8-10 years. Methods: In total, 13 males (age = 9.0 [0.7] y) and 7 females (age = 9.0 [0.8] y) volunteered for this study. Independent samples t tests and effect sizes (ESs) were used to examine potential differences in skeletal muscle composition and glucose concentrations. Results: There were no significant differences between groups for glucose concentration (P = .07, ES = 0.86); however, the children who were overweight and obese had significantly greater EI (P < .01, ES = 0.98-1.63) for the first dorsal interosseous, vastus lateralis, and rectus femoris and lower cross-sectional area when normalized to EI when collapsed across muscles (P < .04, ES = 0.92). Glucose concentrations correlated with EI and cross-sectional area/EI for the vastus lateralis (r = .514 to -.593) and rectus femoris (r = .551 to -.513), but not the first dorsal interosseous. Discussion: There is evidence that adiposity-related pathways leading to insulin resistance and skeletal muscle degradation are active in young children who are overweight and obese.
引用
收藏
页码:157 / 164
页数:8
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