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Nutrients
Special Issues
Nutritional Supplements, Exercise Interventions, and Skeletal Muscle Health
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Nutritional Supplements, Exercise Interventions, and Skeletal Muscle Health

A special issue of Nutrients (ISSN 2072-6643). This special issue belongs to the section "Sports Nutrition".

Deadline for manuscript submissions: closed (25 June 2024) | Viewed by 6031

Special Issue Editors

Dr. Sang-Rok Lee

E-Mail Website
Guest Editor
Department of Kinesiology, New Mexico State University, Las Cruces, NM 88003, USA
Interests: exercise; aging; skeletal muscle; dietary supplements
Dr. Edward Jo

E-Mail Website
Guest Editor
Human Performance Research Laboratory, Department of Kinesiology and Health Promotion, California State University Pomona, Pomona, CA 91768, USA
Interests: exercise; aging; skeletal muscle; dietary supplements
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Maintaining skeletal muscle is critical to the sustenance of healthy life. Skeletal muscle is the major metabolic tissue responsible for maintaining independent living as well as preventing or recovering from various metabolic diseases. Further, having a greater proportion of skeletal muscle to total body mass is associated with an increase in quality of daily living and survival. While a number of studies have reported the importance of a healthy diet and physical activity in skeletal muscle health, there is a need to enhance our understanding of the underlying mechanisms of specific nutritional administration and exercise intervention strategies to promote skeletal muscle health in various populations. Therefore, the purpose of this Special Issue on ‘Nutritional Supplements, Exercise Interventions, and Skeletal Muscle Health’ is to advance our knowledge concerning how specific nutritional supplements and exercise interventions can improve skeletal muscle health in various populations. This Special Issue welcomes research articles that address the association between nutrition and exercise intervention with skeletal muscle disorders.

Dr. Sang-Rok Lee
Dr. Edward Jo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nutrients is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • skeletal muscle
  • nutritional supplements
  • exercise interventions
  • catabolism
  • dietary supplements

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Published Papers (2 papers)

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Research

15 pages, 1330 KiB  
Article
Effects of Resistance Exercise and Essential Amino Acid Intake on Muscle Quality, Myokine, and Inflammation Factors in Young Adult Males
by Deokhwa Jeong, Kyumin Park, Jinseok Lee, Jiye Choi, Haifeng Du, Hyeongmo Jeong, Liangliang Li, Kenji Sakai and Sunghwun Kang
Nutrients 2024, 16(11), 1688; https://doi.org/10.3390/nu16111688 - 29 May 2024
Cited by 1 | Viewed by 1829
Abstract
Background: Recently, many studies have been devoted to discovering nutrients for exercise-like effects. Resistance exercise and the intake of essential amino acids (EAAs) are known to be factors that can affect muscle mass and strength improvement. The purpose of this study was to [...] Read more.
Background: Recently, many studies have been devoted to discovering nutrients for exercise-like effects. Resistance exercise and the intake of essential amino acids (EAAs) are known to be factors that can affect muscle mass and strength improvement. The purpose of this study was to investigate changes in muscle quality, myokines, and inflammation in response to resistance exercise and EAA supplementation. Methods: Thirty-four males volunteered to participate in this study. They were assigned to four groups: (1) placebo (CO), (2) resistance exercise (RE), (3) EAA supplementation, and (4) RE + EAA supplementation. Body composition, muscle quality, myokines, and inflammation were measured at baseline and four weeks after treatment. Results: Lean body fat had decreased in both RE and RE + EAA groups. Lean body mass had increased in only the RE + EAA group. In all groups except for CO, irisin, myostatin A, and TNF-α levels had decreased. The grip strength of the right hand and trunk flexion peak torque increased in the RE group. The grip strength of the left hand, trunk flexion peak torque, and knee flexion peak torque of the left leg were increased in RE + EAA. Conclusions: RE, EAA, and RE + EAA could effectively improve the muscle quality, myokine, and inflammation factors of young adult males. This finding highlights the importance of resistance exercise and amino acid intake. Full article
(This article belongs to the Special Issue Nutritional Supplements, Exercise Interventions, and Skeletal Muscle Health)
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12 pages, 633 KiB  
Article
Fish Oil Supplementation with Resistance Exercise Training Enhances Physical Function and Cardiometabolic Health in Postmenopausal Women
by Sang-Rok Lee and Dean Directo
Nutrients 2023, 15(21), 4516; https://doi.org/10.3390/nu15214516 - 25 Oct 2023
Cited by 2 | Viewed by 3785
Abstract
Menopause is a condition associated with an increased risk of dysregulation in cardiovascular and metabolic health among older women. While fish oil (FO) has garnered great attention for its health-enhancing properties, its potential for enhancing cardiometabolic health in this demographic remains to be [...] Read more.
Menopause is a condition associated with an increased risk of dysregulation in cardiovascular and metabolic health among older women. While fish oil (FO) has garnered great attention for its health-enhancing properties, its potential for enhancing cardiometabolic health in this demographic remains to be established. The purpose of this study was to determine the clinical efficacy of an 8 wk administration of FO combined with programmed resistance exercise training (RET) on physical function and risk factors associated with cardiometabolic health in healthy older women. Twenty, healthy, older women were randomly assigned to one of the two experimental groups: resistance training with placebo (RET-PL) or RET with fish oil (RET-FO). Physical function, blood pressure (BP), triglyceride (TG), and systemic inflammation and oxidative stress biomarkers were assessed before and after the intervention. Statistical significance was set at p ≤ 0.05. Physical function was greatly enhanced in both RET and RET-FO. Handgrip strength substantially increased only in RET-FO. RET-FO exhibited significant decreases in BP, TG, inflammatory cytokines (TNF-α and IL-6), and oxidative stress (MDA and 8-OHdG) levels, while no detectable changes were found in RET-PL. Our findings indicate that FO administration during 8 wks of RET appears to enhance muscle function and lower risk factors linked to cardiometabolic disorders in postmenopausal women. Full article
(This article belongs to the Special Issue Nutritional Supplements, Exercise Interventions, and Skeletal Muscle Health)
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