Effects of Resistance Training and Soy Isoflavone on Body Composition in Postmenopausal Women
Objective. To investigate the independent and additive effects of resistance training (RT) and soy isoflavone (ISO) on body composition in postmenopausal women (PW). Method. This study used a placebo-controlled, double-blind (soy), randomized (ISO versus placebo) × (RT versus No RT) design. A total...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | Obstetrics and Gynecology International |
| Online Access: | http://dx.doi.org/10.1155/2010/156037 |
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| author | Fábio Lera Orsatti Eliana Aguiar Petri Nahas Jorge Nahas-Neto Nailza Maesta Cláudio Lera Orsatti Cesar Edurado Fernandes |
| author_facet | Fábio Lera Orsatti Eliana Aguiar Petri Nahas Jorge Nahas-Neto Nailza Maesta Cláudio Lera Orsatti Cesar Edurado Fernandes |
| author_sort | Fábio Lera Orsatti |
| collection | DOAJ |
| description | Objective. To investigate the independent and additive effects of resistance
training (RT) and soy isoflavone (ISO) on body composition in postmenopausal women (PW). Method. This study used a placebo-controlled, double-blind (soy), randomized (ISO versus placebo) × (RT versus No RT) design. A total of 80 PW, aged 45–70 years, were randomly (71 completed 9-months intervention): RT + ISO (n=15), No RT + ISO (n=20), RT + placebo (n=18), and No RT + placebo (n=18). ISO received 100 mg a day of isoflavone; and to RT attended supervised resistance training sessions. At baseline and 9-months, fat and muscle mass were estimated by DXA. ANOVA and test t were used. Results. RT groups showed significantly increased muscle strength (35.2%) and muscle mass (1.4%). Exercising attenuated gains in fat trunk and % body fat (P<.05). Significant decreases in muscle mass (−1.8%) and increases in fat mass of the whole-body (1.6%) and trunk (9.7%) was found in no-RT groups (P<.05). In ISO groups, there were no differences in body composition and muscle strength. ISO and RT had no additive effects. Conclusion. In PW: RT improved muscle mass and strength and attenuated gain of fat mass; ISO did not alter body composition and muscle strength; there were no additive effects of RT and ISO. |
| format | Article |
| id | doaj-art-f022a71fc7d04179a30022eccffe0f8d |
| institution | Kabale University |
| issn | 1687-9589 1687-9597 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Obstetrics and Gynecology International |
| spelling | doaj-art-f022a71fc7d04179a30022eccffe0f8d2025-02-03T01:13:01ZengWileyObstetrics and Gynecology International1687-95891687-95972010-01-01201010.1155/2010/156037156037Effects of Resistance Training and Soy Isoflavone on Body Composition in Postmenopausal WomenFábio Lera Orsatti0Eliana Aguiar Petri Nahas1Jorge Nahas-Neto2Nailza Maesta3Cláudio Lera Orsatti4Cesar Edurado Fernandes5Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University, Rubiao Junior, Botucatu, Sao Paulo 18618-970, BrazilDepartment of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University, Rubiao Junior, Botucatu, Sao Paulo 18618-970, BrazilDepartment of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University, Rubiao Junior, Botucatu, Sao Paulo 18618-970, BrazilDepartment of Public Health, Center of Nutrition and Exercise Metabolism, Botucatu Medical School, Sao Paulo State University, Rubiao Junior, Sao Paulo 18618-970, BrazilDepartment of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University, Rubiao Junior, Botucatu, Sao Paulo 18618-970, BrazilDepartment of Gynecology and Obstetrics, ABC Medical School, Sao Paulo 09060-870, BrazilObjective. To investigate the independent and additive effects of resistance training (RT) and soy isoflavone (ISO) on body composition in postmenopausal women (PW). Method. This study used a placebo-controlled, double-blind (soy), randomized (ISO versus placebo) × (RT versus No RT) design. A total of 80 PW, aged 45–70 years, were randomly (71 completed 9-months intervention): RT + ISO (n=15), No RT + ISO (n=20), RT + placebo (n=18), and No RT + placebo (n=18). ISO received 100 mg a day of isoflavone; and to RT attended supervised resistance training sessions. At baseline and 9-months, fat and muscle mass were estimated by DXA. ANOVA and test t were used. Results. RT groups showed significantly increased muscle strength (35.2%) and muscle mass (1.4%). Exercising attenuated gains in fat trunk and % body fat (P<.05). Significant decreases in muscle mass (−1.8%) and increases in fat mass of the whole-body (1.6%) and trunk (9.7%) was found in no-RT groups (P<.05). In ISO groups, there were no differences in body composition and muscle strength. ISO and RT had no additive effects. Conclusion. In PW: RT improved muscle mass and strength and attenuated gain of fat mass; ISO did not alter body composition and muscle strength; there were no additive effects of RT and ISO.http://dx.doi.org/10.1155/2010/156037 |
| spellingShingle | Fábio Lera Orsatti Eliana Aguiar Petri Nahas Jorge Nahas-Neto Nailza Maesta Cláudio Lera Orsatti Cesar Edurado Fernandes Effects of Resistance Training and Soy Isoflavone on Body Composition in Postmenopausal Women Obstetrics and Gynecology International |
| title | Effects of Resistance Training and Soy Isoflavone on Body Composition in Postmenopausal Women |
| title_full | Effects of Resistance Training and Soy Isoflavone on Body Composition in Postmenopausal Women |
| title_fullStr | Effects of Resistance Training and Soy Isoflavone on Body Composition in Postmenopausal Women |
| title_full_unstemmed | Effects of Resistance Training and Soy Isoflavone on Body Composition in Postmenopausal Women |
| title_short | Effects of Resistance Training and Soy Isoflavone on Body Composition in Postmenopausal Women |
| title_sort | effects of resistance training and soy isoflavone on body composition in postmenopausal women |
| url | http://dx.doi.org/10.1155/2010/156037 |
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