Seaweed Supplementation Enhances Maximal Muscular Strength and Attenuates Resistance Exercise-Induced Oxidative Stress in Rats

Author:

Korivi Mallikarjuna1ORCID,Chen Chun-Tai2,Yu Szu-Hsien3,Ye Weibing1,Cheng I-Shiung4,Chang Jhong-Sin5,Kuo Chia-Hua2,Hou Chien-Wen2ORCID

Affiliation:

1. Exercise and Metabolism Research Center, College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua 321004, China

2. Laboratory of Exercise Biochemistry, Institute of Sports Sciences, University of Taipei, Taipei 11153, Taiwan

3. Department of Leisure Industry and Health Promotion, National Ilan University, Yilan County 26047, Taiwan

4. Department of Physical Education, National Taichung University of Education, Taichung City 40306, Taiwan

5. Taiwan Fertilizer Co., LTD, Hualien 97064, Taiwan

Abstract

We investigated the effect of chronic seaweed (Gracilaria asiatica) supplementation on maximal carrying capacity, muscle mass, and oxidative stress in rats following high-intensity resistance exercise (RE). Forty Sprague-Daley rats were equally categorized into control, exercise, seaweed, and exercise plus seaweed (ES) groups. Rats in respective groups performed RE (once per 2 days) or received seaweed (250 mg/kg bodyweight, orally) for 10 weeks. Results showed that seaweed consumption in combination with RE significantly (p < 0.05) increased maximal weight carrying capacity compared to RE alone. FHL muscle mass was significantly higher in both exercise and ES groups. Notably, high-intensity RE-induced lipid peroxidation, as evidenced by elevated thiobarbituric acid reactive substances (TBARS) in muscle, was substantially diminished (p < 0.05) by seaweed treatment. This antioxidative effect of seaweed was further represented by augmented superoxide dismutase activity and glutathione levels in seaweed groups. We noticed increased insulin concentrations and HOMA-IR, while the fasting blood glucose levels remained stable in seaweed and ES groups. Our findings conclude that seaweed in combination with RE enhanced maximal carrying strength and attenuated oxidative stress through improved antioxidant capacity. Seaweed could be a potential nutritional supplement to boost performance and to prevent exercise-induced muscle damage.

Funder

Ministry of Science and Technology, Taiwan

Publisher

Hindawi Limited

Subject

Complementary and alternative medicine

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