Abstract：
:Objective: This study investigated the effects of leucine supplementation with resistance training (RT) in untrained peri- and postmenopausal women on fat free mass, strength, and select anabolic-related hormones.Method: This was a randomized, double-blind, placebo-controlled trial, in which 36 untrained women were randomly assigned to either a leucine or placebo supplement group coupled with 10 weeks of RT, performed thrice weekly, while ingesting either 5 g of placebo or leucine. Before and after RT, body composition and muscle strength were assessed and venous blood samples obtained to determine the levels of estradiol, testosterone, insulin-like growth factor-1, growth hormone, and cortisol. Data were analyzed by utilizing separate 2 × 2 [group × time (pretest and posttest)] factorial analyses of variance with repeated measures (p ≤ .05).Results: There were no significant changes or differences between groups in fat free mass or with any of the serum hormones assessed in response to supplementation. However, there were significant increases in strength in both groups in response to RT, but not supplementation.Conclusions: Peri- and postmenopausal women had significant increases in strength following 10 weeks of RT, with no additional effects from supplementing with leucine. There were no significant changes in either group regarding fat free mass or serum hormones.
journal_name
J Am Coll Nutrjournal_title
Journal of the American College of Nutritionauthors
Funderburk LK,Beretich KN,Chen MD,Willoughby DSdoi
10.1080/07315724.2019.1650675subject
Has Abstractpub_date
2020-05-01 00:00:00pages
316-324issue
4eissn
0731-5724issn
1541-1087journal_volume
39pub_type
杂志文章abstract：:Osteoporosis is a multifactorial disease with dimensions of genetics, endocrine function, exercise and nutritional considerations. Of particular considerations are calcium (Ca) status, Vitamin D, fluoride, magnesium and other trace elements. Several trace elements, particularly copper (Cu), manganese (Mn) and zinc (Zn...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.1993.10718327
更新日期：1993-08-01 00:00:00
abstract：OBJECTIVE:Ingesting a mix of glucose and fructose during exercise increases exogenous carbohydrate oxidation while minimizing gastrointestinal (GI) distress. Several studies have suggested that a glucose-to-fructose ratio of 1.2:1 to 1:1 is optimal. No studies have quantified saccharides consumed during a nonsimulated ...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.2014.996830
更新日期：2015-01-01 00:00:00
abstract：OBJECTIVE:Replacing dietary refined carbohydrates (CHO) with protein may impact appetite and glucose and lipid metabolism in metabolically at-risk individuals. The objectives of this study were to assess the effects of consumption of a lean pork-containing, high-protein (pPro) breakfast versus a refined-CHO-rich breakf...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.2017.1396266
更新日期：2018-05-01 00:00:00
abstract：OBJECTIVE:Aging health is associated with nutritional changes which are not well understood and were therefore evaluated in this study by comparing the nutritional status of centenarians and elderly (in their 70s) relative to young subjects. SUBJECTS:The participants were 27 young subjects (10 males, 17 females), 40 h...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.1999.10718876
更新日期：1999-08-01 00:00:00
abstract：OBJECTIVE:To evaluate several potential clinical indicators of magnesium status (diet, blood, urine, 24-hour load retention) in patients with congestive heart failure before, during, and after oral magnesium supplementation. METHODS:Twelve patients with New York Heart Association class II-III heart failure and 12 age ...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.1997.10718645
更新日期：1997-02-01 00:00:00
abstract：OBJECTIVE:The present study was undertaken to investigate the effect of dietary magnesium (Mg) deficiency on plasma levels of parathyroid hormone (PTH) and calcitonin (CT), and the changes in tissue calcium (Ca) and phosphorus (P) content. METHODS:Wistar rats were fed an Mg-deficient diet. Plasma levels of PTH and CT,...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.1995.10718510
更新日期：1995-06-01 00:00:00
abstract：OBJECTIVE:The salt (NaCl) content of bread, obtained from Belgium and 25 other regions or countries worldwide, was analyzed to evaluate the importance of bread as a source of dietary salt in a population. METHODS:A total of 1166 dried bread samples were analyzed using a hot HCl extraction technique followed by flame p...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.1994.10718392
更新日期：1994-04-01 00:00:00
abstract：:Objectives: To evaluate the prevalence and associated factors with general and central adiposity in older adults in Palmas (TO).Methods: Cross-sectional study with older adults (≥60 years) of both sexes enrolled in the Family Health Strategy program in Palmas (TO). Sociodemographic aspects, health conditions, and func...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.2020.1734989
更新日期：2020-11-01 00:00:00
abstract：OBJECTIVE:The primary aim of this study was to assess the effects of dietary protein intake on energy restriction (ER)-induced changes in body mass and body composition. Clinical markers of metabolic and cardiovascular diseases were also measured. DESIGN:54 postmenopausal women, age 58 +/- 2 y, body mass index 29.6 +/...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,随机对照试验
doi：10.1080/07315724.2007.10719600
更新日期：2007-04-01 00:00:00
abstract：:The tenth anniversary for the determination of magnesium in MBC shows progress, but fundamental questions are still unanswered. Uniformity of the methodology for the assay and the units for reporting the result is a key factor for the validity and comparability of results. There is relatively good agreement among inve...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.1987.10720166
更新日期：1987-04-01 00:00:00
abstract：BACKGROUND:Epidemiological studies demonstrate an inverse relation between dietary flavonoid intake and cardiovascular risk. Recent studies with flavonoid-containing beverages suggest that the benefits of these nutrients may relate, in part, to improved endothelial function. OBJECTIVE:We hypothesized that dietary supp...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,随机对照试验
doi：10.1080/07315724.2007.10719590
更新日期：2007-04-01 00:00:00
abstract：OBJECTIVE:We examined relationships of individual and environmental factors with obesity and trying to lose weight in rural residents. METHODS:The joint contributions of individual and environmental factors on obesity status (obese vs. morbidly obese) and trying to lose weight (yes vs. no) were evaluated using general...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.2007.10719632
更新日期：2007-10-01 00:00:00
abstract：OBJECTIVE:The present study evaluated the effects of repeated-sprint training in normobaric hypoxia and β-alanine supplementation (BA) on aerobic and anaerobic performance in recreationally active men. METHODS:Participants were randomly assigned to one of the following groups: normoxia/β-alanine (NB, n = 11), normoxia...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,随机对照试验
doi：10.1080/07315724.2018.1475269
更新日期：2019-02-01 00:00:00
abstract：:Approximately 50% of neural tube defects may be folate-preventable and perhaps even more in other countries where prevalence is high. The Public Health Service has issued the recommendation that all women of childbearing age in the United States who are capable of becoming pregnant should consume 400 micrograms of fol...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,评审
doi：10.1080/07315724.1996.10718576
更新日期：1996-04-01 00:00:00
abstract：:Prevention of vascular disease and acute pancreatitis is the goal of hyperlipidemia treatment. The risk of coronary heart disease (CHD) increases with increasing plasma cholesterol levels because low-density lipoprotein (LDL), the major carrier of cholesterol in the plasma, is atherogenic. High-density lipoprotein (HD...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,评审
doi：10.1080/07315724.1989.10737968
更新日期：1989-01-01 00:00:00
abstract：:A simple procedure has been developed for preparation of animal tissues and diet mixtures for Mg and Ca analysis by atomic absorption spectroscopy. This procedure involves wet ashing in warm 30% hydrogen peroxide and extraction of metals, from the dried ash, into cold, dilute nitric acid. Less than 200 mg of tissue or...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.1983.10719920
更新日期：1983-01-01 00:00:00
abstract：OBJECTIVE:We tested whether an extreme running competition ("Marathon of Sands") might alter the blood's enzymatic and non-enzymatic antioxidant status in 6 well-trained athletes. METHODS:The Marathon of Sands is a competition consisting of six long duration races in the desert in which the athletes carry their own fo...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.2004.10719379
更新日期：2004-08-01 00:00:00
abstract：:Current and emerging bone active pharmacologic agents are capable of producing substantial gains in bone mass. However, nutrition must be adequate if this potential is to be realized. Calcium and vitamin D supplementation, for example, have both been demonstrated to augment substantially the skeletal response to estro...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,评审
doi：10.1080/07315724.2001.10719176
更新日期：2001-10-01 00:00:00
abstract：:Dietary guidelines have broad implications for the health of individuals and populations. Increasingly, government agencies and medical organization that issue guidelines have pursued evidence-based approaches. These approaches emphasize a comprehensive, critical, and explicit examination of the scientific evidence th...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,评审
doi：10.1080/07315724.2006.10719578
更新日期：2006-06-01 00:00:00
abstract：:Calcium can be obtained from foods naturally rich in calcium such as dairy foods, from calcium-fortified foods and beverages, from supplements or from a combination of these. Recognition of calcium's many health benefits, along with Americans' low calcium intake, has led to interest in how best to meet calcium needs. ...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,评审
doi：10.1080/07315724.2001.10719029
更新日期：2001-04-01 00:00:00
abstract：OBJECTIVE:To identify if particular foods or food groups may be associated with obesity in children and adolescents and to determine if consuming food away from home (FAFH) has an effect on the nutritional quality of their diets. DESIGN:One-year cross-sectional study. SETTING/SUBJECTS:The obese subjects (n = 91) were...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.2003.10719333
更新日期：2003-12-01 00:00:00
abstract：:The complex interactions between the diet, gut microbiome, and host characteristics that provide a functional benefit to the host are an area of great interest and current exploration in the nutrition and health science community. New technologies are available to assess mechanisms that may explain these functional be...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,评审
doi：10.1080/07315724.2016.1257961
更新日期：2017-03-01 00:00:00
abstract：:The vegetarian diet has been associated with lower blood pressure (BP) in elderly white Americans. This study was undertaken to determine whether or not long-term adherence (at least 5 years) to a plant-based diet is similarly related to lower BP in older black Americans, a group exhibiting significant risk for hypert...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.1993.10718308
更新日期：1993-06-01 00:00:00
abstract：BACKGROUND:Postprandial hyperglycemia has been associated with increased oxidative stress and the development of diabetes, heart disease and all-cause mortality. OBJECTIVE:To assess the effect of novel maize-based dietary fibers on postprandial glycemia and to assess the correlation between a rapid in vitro digestibil...
journal_title：Journal of the American College of Nutrition
pub_type： 临床试验,杂志文章
doi：10.1080/07315724.2008.10719748
更新日期：2008-12-01 00:00:00
abstract：OBJECTIVE:This study was designed to determine the composition of postprandial triglyceride-rich lipoproteins (TRL) after the intake of pomace olive oil (POO), which is a subproduct of the extraction of virgin olive oil (VOO) and presents a high concentration of minor components with biological activity. METHODS:Meals...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,随机对照试验
doi：10.1080/07315724.2007.10719582
更新日期：2007-02-01 00:00:00
abstract：:Despite extensive studies in cancer prevention, the incidence of cancer is increasing. We review studies that have identified several biochemical and genetic defects as well as potential carcinogens in the diet, environmental factors, and lifestyle-related habits. Two of the biochemical abnormalities increased oxidati...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,评审
doi：10.1080/07315724.2014.1003419
更新日期：2016-01-01 00:00:00
abstract：OBJECTIVE:Dietary patterns reflect diet and nutritional habits of individuals in a society. Various dietary patterns could influence leptin and adiponectin secretion from adipose tissue. These hormones are associated with metabolic diseases. It is suggested that the leptin-to-adiponectin (L/A) ratio might be a more use...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章
doi：10.1080/07315724.2014.880389
更新日期：2015-01-01 00:00:00
abstract：OBJECTIVE:The increased prevalence of obesity has resulted in the current high popularity of dietary supplements marketed as weight reducing agents. The efficacy of most of these supplements is not established. The soluble fiber, glucomannan, is often recommended for weight loss. The aim of this systematic review is to...
journal_title：Journal of the American College of Nutrition
pub_type： 杂志文章,meta分析,评审
doi：10.1080/07315724.2014.870013
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVE:In vitro and animal studies suggest that antitumor effect of chemotherapeutic agents may be enhanced by antioxidants. Therefore, we initiated a clinical study to test the efficacy of high-dose multiple antioxidants (vitamins C, E and beta carotene) as an adjunct to chemotherapy (paclitaxel and carboplatin) in...
journal_title：Journal of the American College of Nutrition
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1080/07315724.2005.10719438
更新日期：2005-02-01 00:00:00
abstract：:Malnutrition has been often suggested as contributing to both the high incidence of hip fracture in elderly people and its complications. In a recent prospective controlled randomized study, the clinical outcome of elderly patients with osteoporotic fracture of the proximal femur (hip fracture) improved by giving a si...
journal_title：Journal of the American College of Nutrition
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1080/07315724.1992.10718256
更新日期：1992-10-01 00:00:00
