scholarly journals Molecular markers of skeletal muscle hypertrophy following 10 wk of resistance training in oral contraceptive users and nonusers

2020 ◽  
Vol 129 (6) ◽  
pp. 1355-1364 ◽  
Author(s):  
Mikkel Oxfeldt ◽  
Line Barner Dalgaard ◽  
Emil Brøbech Jørgensen ◽  
Frank Ted Johansen ◽  
Emil Barner Dalgaard ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Oral Contraceptive ◽  
Resistance Training ◽  
Muscle Hypertrophy ◽  
Contraceptive Use ◽  
Cell Number ◽  
Regulatory Factor ◽  
Regulatory Pathways ◽  
Oral Contraceptive Use ◽  
Skeletal Muscle Hypertrophy

The effect of oral contraceptive use on the skeletal muscle regulatory pathways in response to resistance training has not been investigated previously. Here we present novel data, demonstrating that use of second-generation oral contraceptives in young untrained women increased skeletal muscle regulatory factor 4 expression and satellite cell number following 10 wk of resistance training compared with nonusers.

scholarly journals Is an Energy Surplus Required to Maximize Skeletal Muscle Hypertrophy Associated With Resistance Training

2019 ◽  
Vol 6 ◽  
Author(s):  
Gary John Slater ◽  
Brad P. Dieter ◽  
Damian James Marsh ◽  
Eric Russell Helms ◽  
Gregory Shaw ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Resistance Training ◽  
Muscle Hypertrophy ◽  
Skeletal Muscle Hypertrophy ◽  
Energy Surplus

Influence of Second Generation Oral Contraceptive Use on Adaptations to Resistance Training in Young Untrained Women

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Line B. Dalgaard ◽  
Emil B. Jørgensen ◽  
Mikkel Oxfeldt ◽  
Emil B. Dalgaard ◽  
Frank T. Johansen ◽  
...  
Keyword(s):  
Oral Contraceptive ◽  
Resistance Training ◽  
Second Generation ◽  
Contraceptive Use ◽  
Oral Contraceptive Use

Comparison of Different Resistance Training Protocols for Skeletal Muscle Hypertrophy in Rat Model

2014 ◽  
Vol 46 ◽  
pp. 353-354
Author(s):  
Sukho Lee ◽  
Aram Yoon ◽  
Soon-Mi Choi ◽  
Junyoung Hong ◽  
Dongwoo Hahn ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Resistance Training ◽  
Rat Model ◽  
Muscle Hypertrophy ◽  
Skeletal Muscle Hypertrophy ◽  
Training Protocols

scholarly journals Exercise-Induced Muscle Damage and Hypertrophy: A Closer Look Reveals the Jury is Still Out

2018 ◽  
Author(s):  
Brad Jon Schoenfeld ◽  
Bret Contreras
Keyword(s):  
Skeletal Muscle ◽  
Protein Synthesis ◽  
Resistance Training ◽  
Muscle Damage ◽  
Muscle Hypertrophy ◽  
Muscle Protein ◽  
Muscle Protein Synthesis ◽  
Skeletal Muscle Hypertrophy ◽  
Exercise Induced

This letter is a response to the paper by Damas et al (2017) titled, “The development of skeletal muscle hypertrophy through resistance training: the role of muscle damage and muscle protein synthesis,” which, in part, endeavored to review the role of exercise-induced muscle damage on muscle hypertrophy. We feel there are a number of issues in interpretation of research and extrapolation that preclude drawing the inference expressed in the paper that muscle damage neither explains nor potentiates increases in muscle hypertrophy. The intent of our letter is not to suggest that a causal role exists between hypertrophy and microinjury. Rather, we hope to provide balance to the evidence presented and offer the opinion that the jury is still very much out as to providing answers on the topic.

Oral Contraceptive Use does not Negatively Affect Body Composition and Strength Adaptations in Trained Women

2019 ◽  
Vol 40 (13) ◽  
pp. 842-849
Author(s):  
Ramón Romance ◽  
Salvador Vargas ◽  
Sergio Espinar ◽  
Jorge L. Petro ◽  
Diego A. Bonilla ◽  
...  
Keyword(s):  
Body Composition ◽  
Oral Contraceptive ◽  
Resistance Training ◽  
Oral Contraceptives ◽  
Fat Mass ◽  
Bench Press ◽  
Contraceptive Use ◽  
Fat Free Mass ◽  
Resistance Training Program ◽  
Oral Contraceptive Use

AbstractThe purpose was to analyze the influence of oral contraceptive use on body composition and strength levels in trained women. Twenty-three resistance-trained women participated in this study (age=27.4±3.4 years; fat mass=28.0±5.0%; BMI=22.9±2.7 kg∙m-2). Subjects performed an 8-week non-linear resistance-training program. Participants were assigned to either a group that consumed oral contraceptives (n=12, OC) or to a group that did not consume (n=11, NOC). Changes in body composition were measured by dual energy X-ray absorptiometry. Strength performance was assessed via the one maximum repetition (1RM) test in the squat and bench press, and muscular power was evaluated using the countermovement jump (CMJ) test. Fat free mass increased significantly in OC but no changes were seen in NOC. There were no changes in fat mass for either OC or NOC. Significant changes were found in bench press 1RM for both OC and NOC; similarly, increases in squat 1RM were reported in OC and NOC. Alternatively, no significant changes were found in CMJ in both OC and NOC. No significant between-group differences were detected in any of the studied variables. The use of oral contraceptives during resistance training did not negatively affect body composition or strength levels in trained women.

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