scholarly journals The ontogeny of skeletal muscle adaptations that enable long deep dives in Weddell seals

2008 ◽  
Vol 22 (S1) ◽  
Author(s):  
Shane B Kanatous ◽  
Thomas J Hawke ◽  
Stephen J Trumble ◽  
Linnea E Pearson ◽  
Randall W Davis
Keyword(s):  
Skeletal Muscle ◽  
Weddell Seals ◽  
Muscle Adaptations ◽  
Skeletal Muscle Adaptations

Skeletal Muscle Adaptations to Prolonged Exposure to Extreme Altitude: A Role of Physical Activity?

2008 ◽  
Vol 9 (4) ◽  
pp. 311-317 ◽  
Author(s):  
Masao Mizuno ◽  
Gabrielle K Savard ◽  
Nils-Holger Areskog ◽  
Carsten Lundby ◽  
Bengt Saltin
Keyword(s):  
Physical Activity ◽  
Skeletal Muscle ◽  
Prolonged Exposure ◽  
Muscle Adaptations ◽  
Extreme Altitude ◽  
Skeletal Muscle Adaptations

scholarly journals Training program-induced skeletal muscle adaptations in two men with myotonic dystrophy type 1

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Marie-Pier Roussel ◽  
Marika Morin ◽  
Mélina Girardin ◽  
Anne-Marie Fortin ◽  
Mario Leone ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Training Program ◽  
Myotonic Dystrophy ◽  
Myotonic Dystrophy Type 1 ◽  
Myotonic Dystrophy Type ◽  
Muscle Adaptations ◽  
Skeletal Muscle Adaptations

Skeletal muscle adaptations in elastic resistance-trained young men and women

2001 ◽  
Vol 86 (2) ◽  
pp. 112-118 ◽  
Author(s):  
David Hostler ◽  
Chris Schwirian ◽  
Gerson Campos ◽  
Kumika Toma ◽  
Matthew Crill ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Young Men ◽  
Men And Women ◽  
Elastic Resistance ◽  
Muscle Adaptations ◽  
Skeletal Muscle Adaptations

scholarly journals Pterostilbene Enhances Endurance Capacity via Promoting Skeletal Muscle Adaptations to Exercise Training in Rats

Molecules ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 186 ◽  
Author(s):  
Jiawei Zheng ◽  
Wujian Liu ◽  
Xiaohui Zhu ◽  
Li Ran ◽  
Hedong Lang ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Exercise Training ◽  
Mitochondrial Biogenesis ◽  
C2c12 Myotubes ◽  
Endurance Capacity ◽  
Muscle Adaptations ◽  
Slow Twitch ◽  
Slow Twitch Fibers ◽  
Skeletal Muscle Adaptations

It has been demonstrated that skeletal muscle adaptions, including muscle fibers transition, angiogenesis, and mitochondrial biogenesis are involved in the regular exercise-induced improvement of endurance capacity and metabolic status. Herein, we investigated the effects of pterostilbene (PST) supplementation on skeletal muscle adaptations to exercise training in rats. Six-week-old male Sprague Dawley rats were randomly divided into a sedentary control group (Sed), an exercise training group (Ex), and exercise training combined with 50 mg/kg PST (Ex + PST) treatment group. After 4 weeks of intervention, an exhaustive running test was performed, and muscle fiber type transformation, angiogenesis, and mitochondrial content in the soleus muscle were measured. Additionally, the effects of PST on muscle fiber transformation, paracrine regulation of angiogenesis, and mitochondrial function were tested in vitro using C2C12 myotubes. In vivo study showed that exercise training resulted in significant increases in time-to-exhaustion, the proportion of slow-twitch fibers, muscular angiogenesis, and mitochondrial biogenesis in rats, and these effects induced by exercise training could be augmented by PST supplementation. Moreover, the in vitro study showed that PST treatment remarkably promoted slow-twitch fibers formation, angiogenic factor expression, and mitochondrial function in C2C12 myotubes. Collectively, our results suggest that PST promotes skeletal muscle adaptations to exercise training thereby enhancing the endurance capacity.

scholarly journals Low-load resistance training to task failure with and without blood flow restriction: muscular functional and structural adaptations

2020 ◽  
Vol 318 (2) ◽  
pp. R284-R295 ◽  
Author(s):  
Christopher Pignanelli ◽  
Heather L. Petrick ◽  
Fatemeh Keyvani ◽  
George J. F. Heigenhauser ◽  
Joe Quadrilatero ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Blood Flow ◽  
Resistance Training ◽  
Resistance Exercise ◽  
Load Resistance ◽  
Muscle Endurance ◽  
Flow Restriction ◽  
Muscle Adaptations ◽  
Low Load ◽  
Skeletal Muscle Adaptations

The application of blood flow restriction (BFR) during resistance exercise is increasingly recognized for its ability to improve rehabilitation and for its effectiveness in increasing muscle hypertrophy and strength among healthy populations. However, direct comparison of the skeletal muscle adaptations to low-load resistance exercise (LL-RE) and low-load BFR resistance exercise (LL-BFR) performed to task failure is lacking. Using a within-subject design, we examined whole muscle group and skeletal muscle adaptations to 6 wk of LL-RE and LL-BFR training to repetition failure. Muscle strength and size outcomes were similar for both types of training, despite ~33% lower total exercise volume (load × repetition) with LL-BFR than LL-RE (28,544 ± 1,771 vs. 18,949 ± 1,541 kg, P = 0.004). After training, only LL-BFR improved the average power output throughout the midportion of a voluntary muscle endurance task. Specifically, LL-BFR training sustained an 18% greater power output from baseline and resulted in a greater change from baseline than LL-RE (19 ± 3 vs. 3 ± 4 W, P = 0.008). This improvement occurred despite histological analysis revealing similar increases in capillary content of type I muscle fibers following LL-RE and LL-BFR training, which was primarily driven by increased capillary contacts (4.53 ± 0.23 before training vs. 5.33 ± 0.27 and 5.17 ± 0.25 after LL-RE and LL-BFR, respectively, both P < 0.05). Moreover, maximally supported mitochondrial respiratory capacity increased only in the LL-RE leg by 30% from baseline ( P = 0.006). Overall, low-load resistance training increased indexes of muscle oxidative capacity and strength, which were not further augmented with the application of BFR. However, performance on a muscle endurance test was improved following BFR training.

Strength-Training Induces Skeletal Muscle Adaptations in Patients with Myotonic Dystrophy Type I

2016 ◽  
Vol 48 ◽  
pp. 641 ◽  
Author(s):  
Marie-Pier Roussel ◽  
Marika Morin ◽  
Émile Petitclerc ◽  
Anne-Marie Fortin ◽  
Cynthia Gagnon ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Strength Training ◽  
Myotonic Dystrophy ◽  
Type I ◽  
Myotonic Dystrophy Type ◽  
Muscle Adaptations ◽  
Skeletal Muscle Adaptations
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