Effects of Catechin-Ingestion and Heat Stress on the Maximum Isometric Force in Knee Extension, the Volume of Quadriceps Muscle, and Serum Thiobarbituric Acid Reactive Substances Level in Healthy Elderly Women

Katsumasa Goto^1*, Hideshi Oda², Noriyasu Ota³, Atsuya Watanabe⁴, Hidefumi Kitazawa³, Michihito Igaki², Atsushi Suzuki², Akira Shimotoyodome³, Tadashi Hase³, Takao Sugiura⁵, Yoshinobu Ohira⁶ and Toshitada Yoshioka⁷

¹Department of Physiology, Graduate School of Health Sciences, Toyohashi SOZO University, Toyohashi, Japan

²Personal Health Care Products Research Laboratories, KAO Corporation, Sumida, Tokyo, Japan

³Biological Science Research Laboratories, KAO Corporation, Haga, Tochigi, Japan

⁴Department of Orthopeadic Surgery, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan

⁵Department of Exercise and Health Sciences, Yamaguchi University, Yamaguchi City, Yamaguch, Japan

⁶Graduate School of Medicine, Osaka University, Toyonaka City, Osaka 560-0043, Japan

⁷Hirosaki Gakuin University, Hirosaki, Japan