Rehabilitative Exercise Training Increases Skeletal Muscle Contractile and Metabolic Function in Severely Burned Children

2016 ◽  
Vol 48 ◽  
pp. 589
Author(s):  
Craig Porter ◽  
David N. Herndon ◽  
Armando Elizonda ◽  
Nisha Bhattarai ◽  
Karel D. Capek ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Exercise Training ◽  
Metabolic Function ◽  
Muscle Contractile

scholarly journals Dysfunction of muscle contraction with impaired intracellular Ca2+ handling in skeletal muscle and the effect of exercise training in male db/db mice

2019 ◽  
Vol 126 (1) ◽  
pp. 170-182 ◽  
Author(s):  
Hiroaki Eshima ◽  
Yoshifumi Tamura ◽  
Saori Kakehi ◽  
Kyoko Nakamura ◽  
Nagomi Kurebayashi ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Skeletal Muscle ◽  
Exercise Training ◽  
Muscle Contraction ◽  
Contractile Function ◽  
Contractile Force ◽  
Contractile Dysfunction ◽  
Muscle Contractile ◽  
Type 2 Diabetic

Type 2 diabetes is characterized by reduced contractile force production and increased fatigability of skeletal muscle. While the maintenance of Ca2+ homeostasis during muscle contraction is a requisite for optimal contractile function, the mechanisms underlying muscle contractile dysfunction in type 2 diabetes are unclear. Here, we investigated skeletal muscle contractile force and Ca2+ flux during contraction and pharmacological stimulation in type 2 diabetic model mice ( db/db mice). Furthermore, we investigated the effect of treadmill exercise training on muscle contractile function. In male db/db mice, muscle contractile force and peak Ca2+ levels were both lower during tetanic stimulation of the fast-twitch muscles, while Ca2+ accumulation was higher after stimulation compared with control mice. While 6 wk of exercise training did not improve glucose tolerance, exercise did improve muscle contractile dysfunction, peak Ca2+ levels, and Ca2+ accumulation following stimulation in male db/db mice. These data suggest that dysfunctional Ca2+ flux may contribute to skeletal muscle contractile dysfunction in type 2 diabetes and that exercise training may be a promising therapeutic approach for dysfunctional skeletal muscle contraction. NEW & NOTEWORTHY The purpose of this study was to examine muscle contractile function and Ca2+ regulation as well as the effect of exercise training in skeletal muscle in obese diabetic mice ( db/db). We observed impairment of muscle contractile force and Ca2+ regulation in a male type 2 diabetic animal model. These dysfunctions in muscle were improved by 6 wk of exercise training.

scholarly journals Acute and chronic responses to exercise training-induced irisin in browning of white fat

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Sílvia Rocha Rodrigues
Keyword(s):  
Skeletal Muscle ◽  
Exercise Training ◽  
Metabolic Diseases ◽  
Contractile Activity ◽  
Whole Body ◽  
Brown Adipocyte ◽  
Adipose Organ ◽  
White Fat ◽  
Muscle Contractile

Nowadays, is well established that the benefits induced by exercise training (ET) affects not only skeletal muscle, but also other non-contractile organs over time. One potential mechanism underlying this crosstalk is the synthesis and secretion of several biological active factors, such as irisin, by muscle contractile activity. This hormone has been described to be able to induce a brown adipocyte-like phenotype in white adipose (WAT), increase whole-body metabolic rate, and therefore prevent and/or treat obesity-related metabolic diseases. Thus, the modulatory impact of ET on WAT may also occur through skeletal muscle - adipose organ axis. In this review, we summarize the acute and chronic adaptations to ET-induced irisin synthesis and secretion on the development of browning of white fat and, thus, providing an overview of the potential preventive and therapeutic role of ET on the obesity-related underlying pathways. 

Effects Of Aerobic Exercise Training And Exercise Intensity On Skeletal Muscle Metabolic Function In Premenopausal Women

2015 ◽  
Vol 47 ◽  
pp. 827
Author(s):  
Gordon Fisher ◽  
Holly R. Resuehr ◽  
Jonathan L. Warren ◽  
Barbara A. Gower ◽  
Douglas R. Moellering ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Exercise Training ◽  
Aerobic Exercise ◽  
Exercise Intensity ◽  
Premenopausal Women ◽  
Aerobic Exercise Training ◽  
Metabolic Function

Combination of Canagliflozin and Exercise Training Leads to Lipid-Dependent Energy Expenditure in Skeletal Muscle in Obese Diabetic Mice

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 742-P
Author(s):  
KENICHI TANAKA ◽  
HIROKAZU TAKAHASHI ◽  
KAZUYO SASAKI ◽  
KANAKO INOUE ◽  
YAYOI MATSUDA ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Energy Expenditure ◽  
Exercise Training ◽  
Diabetic Mice

Effect of training on insulin binding to rat skeletal muscle sarcolemmal vesicles

1986 ◽  
Vol 250 (5) ◽  
pp. E570-E575
Author(s):  
G. K. Grimditch ◽  
R. J. Barnard ◽  
S. A. Kaplan ◽  
E. Sternlicht
Keyword(s):  
Skeletal Muscle ◽  
Insulin Sensitivity ◽  
Exercise Training ◽  
Insulin Binding ◽  
Whole Body ◽  
Rat Skeletal Muscle ◽  
Binding Studies ◽  
Muscle Enzyme ◽  
Intravenous Glucose ◽  
High Affinity

We examined the hypothesis that the exercise training-induced increase in skeletal muscle insulin sensitivity is mediated by adaptations in insulin binding to sarcolemmal (SL) insulin receptors. Insulin binding studies were performed on rat skeletal muscle SL isolated from control and trained rats. No significant differences were noted between groups in body weight or fat. An intravenous glucose tolerance test showed an increase in whole-body insulin sensitivity with training, and specific D-glucose transport studies on isolated SL vesicles indicated that this was due in part to adaptations in skeletal muscle. Enzyme marker analyses revealed no differences in yield, purity, or contamination of SL membranes between the two groups. Scatchard analyses indicated no significant differences in the number of insulin binding sites per milligram SL protein on the high-affinity (15.0 +/- 4.1 vs. 18.1 +/- 6.4 X 10(9)) or on the low-affinity portions (925 +/- 80 vs. 884 +/- 106 X 10(9)) of the curves. The association constants of the high-affinity (0.764 +/- 0.154 vs. 0.685 +/- 0.264 X 10(9) M-1) and of the low affinity sites (0.0096 +/- 0.0012 vs. 0.0102 +/- 0.0012 X 10(9) M-1) also were similar. These results do not support the hypothesis that the increased sensitivity to insulin after exercise training is due to changes in SL insulin receptor binding.

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