alexa 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
ISSN: 2167-7182

Journal of Gerontology & Geriatric Research
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Research Article

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 Goto1*, Hideshi Oda2, Noriyasu Ota3, Atsuya Watanabe4, Hidefumi Kitazawa3, Michihito Igaki2, Atsushi Suzuki2,
Akira Shimotoyodome3, Tadashi Hase3, Takao Sugiura5, Yoshinobu Ohira6 and Toshitada Yoshioka7
1 Department of Physiology, Graduate School of Health Sciences, Toyohashi SOZO University, Toyohashi, Japan
2 Personal Health Care Products Research Laboratories, KAO Corporation, Sumida, Tokyo, Japan
3 Biological Science Research Laboratories, KAO Corporation, Haga, Tochigi, Japan
4 Department of Orthopeadic Surgery, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
5 Department of Exercise and Health Sciences, Yamaguchi University, Yamaguchi City, Yamaguch, Japan
6 Graduate School of Medicine, Osaka University, Toyonaka City, Osaka 560-0043, Japan
7 Hirosaki Gakuin University, Hirosaki, Japan
Corresponding Author : Katsumasa Goto
Department of Physiology
Graduate School of Health Sciences
Toyohashi SOZO University, 20-1 Matsushita
Ushikawa, Toyohashi City, Aichi 440-8511, Japan
Tel: +81-50-2017-2272
Fax: +81-532-55-0803
E-mail: [email protected]
Received December 23, 2013; Accepted February 13, 2014; Published February 17, 2014
Citation: Goto K, Oda H, Ota N, Watanabe A, Kitazawa H, et al. (2014) 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. J Gerontol Geriat Res 3:148. doi:10.4172/2167-7182.1000148
Copyright: © 2014 Goto K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Background: Sarcopenia, is a major concern for our aged society because sarcopenia is a fundamental cause of frailty and functional disability.

Aim: The effects of catechin-ingestionp and/or heat treatment on the volume in quadriceps muscles, isometric force of knee extension, and serum thiobarbituric acid reactive substances (TBARS) were investigated in healthy elderly women.

Methods: Subjects (71.0 ± 0.7 years old, n=27) were divided into 3 groups; 1) catechin-ingested, 2) heatstressed, and 3) catechin-ingestion with heat stressed (catechin+heat) groups. Subjects in both catechin-ingested and catechin+heat groups daily ingested 350 ml of green tea containing 540 mg of catechin in one hour for 10 weeks. Heat stress was applied on the quadriceps muscles for 8 hours a day and 4 days a week by using two heat- and steam generating sheets.

Results: In catechin+heat group, muscle volume (Pre: 670 ± 38.7 cm2, Post: 676 ± 37.2 cm2) and maximal isometric force (Pre: 25.8 ± 2.5 kg, Post: 27.0 ± 2.5 kg) were significantly increased by the 10-week of treatment (p<0.05), but not in catechin-ingested and heat-stressed groups. The time of Timed-Get-Up-and-Go test (TUG), which is widely used to measure sit-to-stand performance, in both catechin-ingested (Pre: 6.70 ± 0.33 s and Post: 6.19 ± 0.28 s) and catechin+heat (Pre: 6.49 ± 0.30 s and Post: 5.95 ± 0.24 s) groups in catechin-ingested group; was significantly shortened by the treatment (p<0.05). Following 10-week of the treatment, serum TBARS levels in both catechin ingested (Pre: 29.06 ± 1.32 nmol/ml, Post: 24.47 ± 2.30 nmol/ml) and catechin+heat (Pre: 29.84 ± 1.57 nmol/ml, Post: 23.92 ± 0.98 nmol/ml) groups were significantly decreased (p<0.05), but not in heat group.

Conclusions: Evidences suggest that catechin-ingestion with heat stress might improve impaired muscle function of elderly women.

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