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Jeong D, Park K, Lee J, Choi J, Du H, Jeong H, Li L, Sakai K, Kang S. Effects of Resistance Exercise and Essential Amino Acid Intake on Muscle Quality, Myokine, and Inflammation Factors in Young Adult Males. Nutrients 2024; 16:1688. [PMID: 38892621 PMCID: PMC11174838 DOI: 10.3390/nu16111688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
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 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.
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Affiliation(s)
- Deokhwa Jeong
- Department of Smart Health Science and Technology, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea; (D.J.); (J.C.); (H.D.)
| | - Kyumin Park
- Center for Sports Science in Gangwon, Chuncheon 24239, Gangwon-do, Republic of Korea;
| | - Jinseok Lee
- Department of Sport Science, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea; (J.L.); (H.J.); (L.L.)
| | - Jiye Choi
- Department of Smart Health Science and Technology, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea; (D.J.); (J.C.); (H.D.)
| | - Haifeng Du
- Department of Smart Health Science and Technology, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea; (D.J.); (J.C.); (H.D.)
| | - Hyeongmo Jeong
- Department of Sport Science, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea; (J.L.); (H.J.); (L.L.)
| | - Liangliang Li
- Department of Sport Science, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea; (J.L.); (H.J.); (L.L.)
| | - Kenji Sakai
- Chemicals & Life Science Division, Nagase Korea Corporation, Seoul 04527, Republic of Korea;
| | - Sunghwun Kang
- Department of Smart Health Science and Technology, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea; (D.J.); (J.C.); (H.D.)
- Department of Sport Science, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea; (J.L.); (H.J.); (L.L.)
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Minich DM, Ross K, Frame J, Fahoum M, Warner W, Meissner HO. Not All Maca Is Created Equal: A Review of Colors, Nutrition, Phytochemicals, and Clinical Uses. Nutrients 2024; 16:530. [PMID: 38398854 PMCID: PMC10892513 DOI: 10.3390/nu16040530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 01/09/2024] [Accepted: 01/17/2024] [Indexed: 02/25/2024] Open
Abstract
Maca (Lepidium meyenii, Lepidium peruvianum) is part of the Brassicaceae family and grows at high altitudes in the Peruvian Andes mountain range (3500-5000 m). Historically, it has been used as a nutrient-dense food and for its medicinal properties, primarily in enhancing energy and fertility. Scientific research has validated these traditional uses and other clinical applications by elucidating maca's mechanisms of action, nutrition, and phytochemical content. However, research over the last twenty years has identified up to seventeen different colors (phenotypes) of maca. The color, hypocotyl size, growing location, cultivation, and post-harvest processing methods can have a significant effect on the nutrition content, phytochemical profile, and clinical application. Yet, research differentiating the colors of maca and clinical applications remains limited. In this review, research on the nutrition, phytochemicals, and various colors of maca, including black, red, yellow (predominant colors), purple, gray (lesser-known colors), and any combination of colors, including proprietary formulations, will be discussed based on available preclinical and clinical trials. The gaps, deficiencies, and conflicts in the studies will be detailed, along with quality, safety, and efficacy criteria, highlighting the need for future research to specify all these factors of the maca used in publications.
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Affiliation(s)
- Deanna M. Minich
- Human Nutrition and Functional Medicine, Adjunct Faculty, University of Western States, Portland, OR 97213, USA
- Food & Spirit, LLC, Port Orchard, WA 98366, USA
- Symphony Natural Health, Inc., West Valley City, UT 84119, USA; (K.R.); (M.F.); (W.W.)
- Symphony Natural Health Institute, West Valley City, UT 84119, USA
| | - Kim Ross
- Symphony Natural Health, Inc., West Valley City, UT 84119, USA; (K.R.); (M.F.); (W.W.)
- Symphony Natural Health Institute, West Valley City, UT 84119, USA
- Kim Ross Consulting, LLC, Lakewood Ranch, FL 34211, USA
- College of Nutrition, Sonoran University of Health Sciences, Tempe, AZ 85282, USA
| | - James Frame
- Symphony Natural Health Holdings Inc., Craigmuir Chambers, Road Town, Tortola VG1110, (BVI), UK;
- Natural Health International Pty Ltd., Sydney, NSW 2000, Australia
| | - Mona Fahoum
- Symphony Natural Health, Inc., West Valley City, UT 84119, USA; (K.R.); (M.F.); (W.W.)
- Meridian Medicine, Seattle, WA 98133, USA
- Bastyr Center for Natural Health, Bastyr University, Kenmore, WA 98028, USA
| | - Wendy Warner
- Symphony Natural Health, Inc., West Valley City, UT 84119, USA; (K.R.); (M.F.); (W.W.)
- Wendy Warner, MD, PC, Yardley, PA 19067, USA
| | - Henry O. Meissner
- National Institute of Complementary Medicine, Health Research Institute, Western Sydney University, Building J, 158-160 Hawkesbury Road, Westmead, NSW 2145, Australia;
- Therapeutic Research, TTD International Pty Ltd., 39 Leopard Ave., Elanora-Gold Coast, QLD 4221, Australia
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Kang S, Ahn BO, Park MH, Lim ST, Lee E. Effects of Black Maca supplement on isokinetics muscular performance of elite women's handball players: placebo-controlled, crossover study. Food Nutr Res 2023; 67:10250. [PMID: 38187794 PMCID: PMC10770698 DOI: 10.29219/fnr.v67.10250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/08/2023] [Accepted: 10/20/2023] [Indexed: 01/09/2024] Open
Abstract
Background The aim of this study was to investigate the changes in isokinetic muscular performance among female adolescent elite handball athletes with the supplementation of Black Maca (BM). Methods Eight elite handball athletes were recruited for the present study. The intake capsules contained 2,500 mg of 100% concentrated BM extract and a placebo each, for 4 weeks. Isokinetic muscular performance and physical fitness were measured three times at 4-week intervals after the intake of BM and placebo, including baseline. Results The one-way Analysis of Variance (ANOVA) analysis showed a significant improvement in 20 m-shuttle run (P < 0.001), 30°/s flexor (P < 0.01), and 120°/s flexor (P < 0.01) in isokinetic muscle function of the trunk, and 180°/s right extensor (P < 0.05), 180°/s left extensor (P < 0.05), and 180°/s left flexor (P < 0.01) in isokinetic muscle function of the knee, after BM supplementation. Post-hoc analysis indicated that the BM group had significantly higher results compared to the baseline and placebo groups in terms of 20 m-shuttle run, 30°/s flexor and 120°/s flexor of the trunk, 180°/s right extensor, 180°/s left extensor, and 180°/s left flexor of the knee. Conclusion BM supplementation can have a positive effect on improving the performance of elite handball players who engage in high-intensity movements by enhancing their isokinetic muscle function and endurance.
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Affiliation(s)
- Sunghwun Kang
- Laboratory of Exercise Physiology, College of Art, Culture and Engineering, Kangwon National University, Gangwon-do, Republic of Korea
- Interdisciplinary Program in Biohealth-Machinery Convergence Engineering, Kangwon National University, Gangwon-do, Republic of Korea
| | - Byung-O Ahn
- Hambaek Low Firm, Seoul, Republic of Korea
- Republic of Korea Naval Academy, Gyeongsangnam-do, Republic of Korea
| | - Myeong-Hun Park
- Laboratory of Exercise Physiology, College of Art, Culture and Engineering, Kangwon National University, Gangwon-do, Republic of Korea
- Chanmacist, Seoul, Republic of Korea
| | - Seung-Taek Lim
- College of General Education, Kookmin University, Seoul, Republic of Korea
- Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
| | - Eunjae Lee
- Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
- Institute of Sports and Arts Convergence (ISAC), Inha University, Incheon, Republic of Korea
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Yi D, Sugimoto T, Matsumura T, Yokoyama S, Fujisato T, Nakamura T, Hashimoto T. Investigating the Combined Effects of Mechanical Stress and Nutrition on Muscle Hypertrophic Signals Using Contractile 3D-Engineered Muscle (3D-EM). Nutrients 2023; 15:4083. [PMID: 37764867 PMCID: PMC10536268 DOI: 10.3390/nu15184083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/17/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
Since 3D-EM closely resembles in vivo muscles, the aim of this study was to investigate the effects of exercise (electrical pulse stimulation (EPS)) and nutrition (maca), which contains triterpenes, on muscle hypertrophy by using 3D-EM for the first time. The 3D-EM was composed of C2C12 cells and type 1 collagen gel, was differentiated for 14 days, and was divided into four groups: control, maca, EPS, and maca + EPS. The medium was replaced every two days before each EPS intervention, and the concentration of maca in the culture solution was 1 mg/mL. The intervention conditions of the EPS were 30 V, 1 Hz, and 2 ms (24 h on, 24 h off, for one week). The expression levels of proteins were examined by Western blotting. The intervention of maca and EPS upregulated the expression of MHC-fast/slow (both p < 0.05) compared with the control group, and the addition of maca had no effect on the phosphorylation of mTOR (p = 0.287) but increased the AMPK phosphorylation (p = 0.001). These findings suggest that intervention with maca and EPS has a positive effect on muscle hypertrophy, which has a positive impact on sarcopenia. However, the underlying mechanisms remain to be further explored.
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Affiliation(s)
- Dong Yi
- Faculty of Sport and Health Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Shiga, Japan; (D.Y.); (T.S.); (T.M.)
| | - Takeshi Sugimoto
- Faculty of Sport and Health Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Shiga, Japan; (D.Y.); (T.S.); (T.M.)
| | - Teppei Matsumura
- Faculty of Sport and Health Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Shiga, Japan; (D.Y.); (T.S.); (T.M.)
| | - Sho Yokoyama
- Department of Mechanical Engineering, School of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Osaka 535-8585, Osaka, Japan;
| | - Toshia Fujisato
- Graduate Course in Applied Chemistry, Environmental and Biomedical Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Osaka 535-8585, Osaka, Japan;
| | - Tomohiro Nakamura
- Division of Human Sciences, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Osaka 535-8585, Osaka, Japan;
| | - Takeshi Hashimoto
- Faculty of Sport and Health Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Shiga, Japan; (D.Y.); (T.S.); (T.M.)
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