International journal of sport nutrition最新文献_第9页

Preexercise feeding in untrained adolescent boys does not affect responses to endurance exercise or performance. 未经训练的青春期男孩运动前喂养不影响耐力运动或表现的反应。

International journal of sport nutrition Pub Date : 1997-09-01 DOI: 10.1123/ijsn.7.3.207

D L Hendelman, K Ornstein, E P Debold, S L Volpe, P S Freedson

引用次数: 16

Dietary practices of South African ultradistance runners. 南非超长跑运动员的饮食习惯。

International journal of sport nutrition Pub Date : 1997-06-01 DOI: 10.1123/ijsn.7.2.80

E M Peters, J M Goetzsche

{"title":"Dietary practices of South African ultradistance runners.","authors":"E M Peters, J M Goetzsche","doi":"10.1123/ijsn.7.2.80","DOIUrl":"https://doi.org/10.1123/ijsn.7.2.80","url":null,"abstract":"Training (T) and prerace (PR) dietary intakes of male and female athletes participating in a 90-km ultramarathon and the usual diets of matched, sedentary controls were investigated using 24-hr dietary records. Supplement use, mean weekly training distance, and race performance times were recorded. Macro- and micronutrient intakes were analyzed using computerized nutritional analysis programs. Total mean energy intake in the T and PR diets of the runners was 10.1 and 12.8 MJ in the men (n = 150) and 7.5 and 9.1 MJ in the women (n = 23). Mean relative contribution of CHO to the runners' total kilojoule intake increased from 50.0 and 49.5% in the T diets to 57.7 (p < .05; n = 153) and 56.4% (p < .05; n = 23) in the PR diets of male and female runners, respectively, and energy-boosting supplements were included in the PR diets of 48% of female and 59% of male runners. Seventy-eight percent of female and 62% of male runners used vitamin and mineral supplements in their T diets as opposed to 39% of female and 28% of male controls. No statistically significant relationship was found between total kilojoule, CHO, fat, protein, and selected micronutrient intake during the 3 days before the race and performance in the 90-km event in runners of homogenous training status and gender.","PeriodicalId":14321,"journal":{"name":"International journal of sport nutrition","volume":"7 2","pages":"80-103"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1123/ijsn.7.2.80","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20135831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

Influence of sodium replacement on fluid ingestion following exercise-induced dehydration. 钠替代对运动性脱水后液体摄入的影响。

International journal of sport nutrition Pub Date : 1997-06-01 DOI: 10.1123/ijsn.7.2.104

R D Wemple, T S Morocco, G W Mack

引用次数: 77

The effect of creatine supplementation on two 700-m maximal running bouts. 补充肌酸对两次700米极限跑的影响。

International journal of sport nutrition Pub Date : 1997-06-01 DOI: 10.1123/ijsn.7.2.138

K A Terrillion, F W Kolkhorst, F A Dolgener, S J Joslyn

引用次数: 61

Glycemic and insulinemic responses to multiple preexercise carbohydrate feedings. 运动前多次进食碳水化合物对血糖和胰岛素的影响。

International journal of sport nutrition Pub Date : 1997-06-01 DOI: 10.1123/ijsn.7.2.128

K R Short, M Sheffield-Moore, D L Costill

{"title":"Glycemic and insulinemic responses to multiple preexercise carbohydrate feedings.","authors":"K R Short, M Sheffield-Moore, D L Costill","doi":"10.1123/ijsn.7.2.128","DOIUrl":"https://doi.org/10.1123/ijsn.7.2.128","url":null,"abstract":"This investigation was undertaken to determine whether consuming several small feedings of preexercise carbohydrate (CHO), rather than a single bolus, would affect blood glucose and insulin responses during rest and exercise. Eight trained cyclists ingested 22.5, 45, or 75 total g maltodextrin and dextrose dissolved in 473 ml of water or an equal volume of placebo (PL). Drinks were divided into four portions and consumed at 15-min intervals in the hour before a 120-min ride at 66% VO2max. Serum glucose values were elevated by the CHO feedings at rest and fell significantly below baseline and PL at 15 min of exercise. However, glucose concentrations were similar in each of the CHO trials. Insulin concentrations also increased rapidly during rest, then fell sharply at the onset of exercise. The findings demonstrate that CHO consumed within an hour before exercise, even when taken in several small feedings, can produce transient hypoglycemia near the onset of exercise. Additionally, the magnitude of the response appears to be unrelated to either the amount of CHO ingested or the insulin response.","PeriodicalId":14321,"journal":{"name":"International journal of sport nutrition","volume":"7 2","pages":"128-37"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1123/ijsn.7.2.128","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20135770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 35

Gastric emptying and plasma deuterium accumulation following ingestion of water and two carbohydrate-electrolyte beverages. 摄入水和两种碳水化合物-电解质饮料后胃排空和血浆氘积累。

International journal of sport nutrition Pub Date : 1997-06-01 DOI: 10.1123/ijsn.7.2.144

R Murray, W P Bartoli, D E Eddy, M K Horn

引用次数: 18

Oxidation of 13C-glucose and 13C-fructose ingested as a preexercise meal: effect of carbohydrate ingestion during exercise. 运动前餐摄入13c -葡萄糖和13c -果糖的氧化:运动期间碳水化合物摄入的影响

International journal of sport nutrition Pub Date : 1997-06-01 DOI: 10.1123/ijsn.7.2.117

Y Burelle, F Péronnet, D Massicotte, G R Brisson, C Hillaire-Marcel

{"title":"Oxidation of 13C-glucose and 13C-fructose ingested as a preexercise meal: effect of carbohydrate ingestion during exercise.","authors":"Y Burelle, F Péronnet, D Massicotte, G R Brisson, C Hillaire-Marcel","doi":"10.1123/ijsn.7.2.117","DOIUrl":"https://doi.org/10.1123/ijsn.7.2.117","url":null,"abstract":"The oxidation of 13C-labeled glucose and fructose ingested as a preexercise meal between 180 and 90 min before exercise was measured on 6 subjects when either a placebo or sucrose was ingested during the exercise period. Labeled hexose oxidation, which occurred mainly during the first hour of exercise, was not significantly modified when sucrose was ingested, but exogenous glucose oxidation was significantly higher than exogenous fructose oxidation in both situations. The results suggest that the absorption rate of exogenous hexoses was high when exercise was initiated but diminished thereafter, and that glucose and fructose released from sucrose ingested during exercise did not compete with glucose or fructose ingested before exercise for intestinal absorption, for conversion into glucose in the liver (for fructose), or for uptake and oxidation of glucose in peripheral tissues. However, as already shown, in terms of availability for oxidation of carbohydrates provided by the preexercise meal, glucose should be favored over fructose.","PeriodicalId":14321,"journal":{"name":"International journal of sport nutrition","volume":"7 2","pages":"117-27"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1123/ijsn.7.2.117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20135833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Is potassium needed in sports drinks for fluid replacement during exercise? 运动时，运动饮料中是否需要钾来补充液体?

International journal of sport nutrition Pub Date : 1997-06-01 DOI: 10.1123/ijsn.7.2.154

J J Cunningham

引用次数: 7

Effect of carbohydrate substrate availability on ratings of perceived exertion during prolonged running. 碳水化合物底物可用性对长时间跑步过程中感知运动等级的影响。

International journal of sport nutrition Pub Date : 1997-05-01 DOI: 10.1097/00005768-199705001-00111

A. Utter, J. Kang, D. Nieman, B. Warren

引用次数: 29

Allithiamine ingestion does not enhance isokinetic parameters of muscle performance. 摄入葱硫胺不会提高肌肉性能的等速动力学参数。

International journal of sport nutrition Pub Date : 1997-03-01 DOI: 10.1123/ijsn.7.1.39

M R Doyle, M J Webster, L D Erdmann

引用次数: 13