International journal of sport nutrition and exercise metabolism最新文献_第4页

Erratum. Effect of Moderate Versus Vigorous Exercise Intensity on Body Composition in Young Untrained Adults: The Activating Brown Adipose Tissue Through Exercise (ACTIBATE) Randomized Controlled Trial. 勘误表。中等强度与剧烈运动强度对未经训练的年轻成人身体成分的影响：运动激活棕色脂肪组织（ACTIBATE）随机对照试验。

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-10-06 Print Date: 2023-11-01 DOI: 10.1123/ijsnem.2023-0209

引用次数: 0

Significant Changes in Resting Metabolic Rate Over a Competitive Match Week Are Accompanied by an Absence of Nutritional Periodization in Male Professional Soccer Players. 男性职业足球运动员在比赛周休息代谢率的显著变化伴随着缺乏营养周期。

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-09-21 DOI: 10.1123/ijsnem.2023-0069

Jennie L Carter, David J Lee, Craig G Perrin, Mayur K Ranchordas, Matthew Cole

{"title":"Significant Changes in Resting Metabolic Rate Over a Competitive Match Week Are Accompanied by an Absence of Nutritional Periodization in Male Professional Soccer Players.","authors":"Jennie L Carter, David J Lee, Craig G Perrin, Mayur K Ranchordas, Matthew Cole","doi":"10.1123/ijsnem.2023-0069","DOIUrl":"10.1123/ijsnem.2023-0069","url":null,"abstract":"Resting metabolic rate (RMR) is an important component of total daily energy expenditure; however, it is currently not understood how it varies across a typical competitive match week in professional soccer players. For the first time, we aimed to assess RMR throughout an in-season competitive week in professional soccer players. Additionally, we aimed to assess energy and carbohydrate intake across the same week. Twenty-four professional soccer players from an English Premier League club (age: 18 ± 1.6 years) completed the study. RMR was assessed each morning of a typical competitive match week (match day [MD] -3, -2, -1, +1, +2, and + 3), and dietary intake (including MD) was assessed daily via the remote food photography method and 24-hr recall. Daily training load was quantified using Global Positioning System, daily muscle soreness ratings were recorded, and body composition was assessed via dual-energy X-ray absorptiometry. There was a significant (p = .0004) increase in mean RMR of ∼261 kcal/day on MD + 1, compared with MD - 1. Additionally, volume of oxygen consumed significantly increased at MD + 1 (p = .0002) versus MD - 1. There were no significant differences in daily energy or carbohydrate intake across the competitive week (p > .05), with inadequate carbohydrate intakes on MD - 1 (∼3.9 g/kg body mass), MD (∼4.2 g/kg body mass), and MD + 1 (∼3.6 g/kg body mass) in relation to current recommendations. We report, for the first time, that RMR is significantly increased following a competitive match in professional soccer players. In addition, we confirm previous findings to reinforce that players exhibit inadequate nutrition periodization practices, which may impair physical performance and recovery.","PeriodicalId":14334,"journal":{"name":"International journal of sport nutrition and exercise metabolism","volume":" ","pages":"349-359"},"PeriodicalIF":2.5,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41175942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Moderate Versus Vigorous Exercise Intensity on Body Composition in Young Untrained Adults: The Activating Brown Adipose Tissue Through Exercise (ACTIBATE) Randomized Controlled Trial. 中等强度与剧烈运动强度对未经训练的年轻成人身体成分的影响：运动激活棕色脂肪组织（ACTIBATE）随机对照试验。

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-09-21 Print Date: 2023-11-01 DOI: 10.1123/ijsnem.2023-0085

Francisco J Amaro-Gahete, María Ruiz-Ruiz, Amalia Cano-Nieto, Guillermo Sanchez-Delgado, Juan M Alcantara, Francisco M Acosta, Idoia Labayen, Francisco B Ortega, Jonatan R Ruiz

{"title":"Effect of Moderate Versus Vigorous Exercise Intensity on Body Composition in Young Untrained Adults: The Activating Brown Adipose Tissue Through Exercise (ACTIBATE) Randomized Controlled Trial.","authors":"Francisco J Amaro-Gahete, María Ruiz-Ruiz, Amalia Cano-Nieto, Guillermo Sanchez-Delgado, Juan M Alcantara, Francisco M Acosta, Idoia Labayen, Francisco B Ortega, Jonatan R Ruiz","doi":"10.1123/ijsnem.2023-0085","DOIUrl":"10.1123/ijsnem.2023-0085","url":null,"abstract":"The present study aimed to investigate the effect of a 24-week aerobic + resistance training programs at moderate versus vigorous intensity on body composition, and the persistence of the changes after a 10-month free-living period, in young untrained adults. This report is based on a secondary analysis from the activating brown adipose tissue through exercise (ACTIBATE) single-center unblinded randomized controlled trial. A total of 144 young adults (65.6% women) aged 18-25 years were randomly allocated to three different groups: (a) aerobic + resistance exercise training program based on the international physical activity recommendations at vigorous intensity (Ex-Vigorous group), (b) at moderate intensity (Ex-Moderate group), and (c) control group (no exercise). Body composition outcomes were determined by a dual-energy X-ray absorptiometry scanner. Both Ex-Vigorous and Ex-Moderate decreased body weight, fat mass, and visceral adipose tissue mass in a similar manner (all p < .04). After a 10-month free-living period, these parameters returned to baseline levels in both exercise groups (all ps < .03). No differences between the exercise groups and the control group were noted in lean mass changes (all ps > .1). A 24-week aerobic + resistance training intervention based on the international physical activity recommendations was enough to improve body weight, fat mass, and visceral adipose tissue mass in untrained young adults, independently of the exercise intensity (moderate vs. vigorous).","PeriodicalId":14334,"journal":{"name":"International journal of sport nutrition and exercise metabolism","volume":" ","pages":"331-341"},"PeriodicalIF":2.5,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41144007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Total Energy Expenditure and Nutritional Intake in Continuous Multiday Ultramarathon Events. 连续多日超马拉松比赛的总能量消耗和营养摄入。

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-09-14 Print Date: 2023-11-01 DOI: 10.1123/ijsnem.2023-0063

Andrew W Best, Amanda McGrosky, Zane Swanson, Rebecca Rimbach, Katie McConaughy, Joe McConaughy, Cara Ocobock, Herman Pontzer

{"title":"Total Energy Expenditure and Nutritional Intake in Continuous Multiday Ultramarathon Events.","authors":"Andrew W Best, Amanda McGrosky, Zane Swanson, Rebecca Rimbach, Katie McConaughy, Joe McConaughy, Cara Ocobock, Herman Pontzer","doi":"10.1123/ijsnem.2023-0063","DOIUrl":"10.1123/ijsnem.2023-0063","url":null,"abstract":"Continuous multiday ultramarathon competitions are increasingly popular and impose extreme energetic and nutritional demands on competitors. However, few data have been published on energy expenditure during these events. Here, we report doubly labeled water-derived measures of total energy expenditure (in kilocalories per day) and estimated physical activity level (PAL: total energy expenditure/basal metabolic rate) collected from five elite and subelite finishers (four males and one female, age 34.6 ± 4.9 years)-and nutritional intake data from the winner-of the Cocodona 250, a ∼402-km race in Arizona, and from a fastest-known-time record (one male, age 30 years) on the ∼1,315-km Arizona Trail. PAL during these events exceeded four times basal metabolic rate (Cocodona range: 4.34-6.94; Arizona Trail: 5.63). Combining the results with other doubly labeled water-derived total energy expenditure data from ultraendurance events show a strong inverse relationship between event duration and PAL (r2 = .68, p < .0001). Cocodona race duration was inversely, though not significantly, associated with PAL (r2 = .70, p = .08). Water turnover varied widely between athletes and was not explained by PAL or body mass. The Cocodona race winner met ∼53% of energy demand via dietary intake, 85.6% of which was carbohydrate, while ∼47% of energy demand was met via catabolism of body energy stores. Together, these results illustrate the energetic deficits incurred during competitive continuous multiday ultramarathon efforts and implicate macronutrient absorption and/or storage as key factors in ultramarathon performance.","PeriodicalId":14334,"journal":{"name":"International journal of sport nutrition and exercise metabolism","volume":" ","pages":"342-348"},"PeriodicalIF":2.5,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10246099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of a 24-Week Concurrent Exercise Intervention on Neck Adiposity and Its Distribution in Young Adults: The ACTIBATE Randomized Controlled Trial. 24周同步运动干预对年轻人颈部肥胖及其分布的影响:ACTIBATE随机对照试验

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-09-01 DOI: 10.1123/ijsnem.2022-0246

Maria Jose Arias-Tellez, Francisco M Acosta, Elisa Merchan-Ramirez, Borja Martínez-Téllez, Guillermo-Sánchez Delgado, Jose M Llamas-Elvira, Jonatan R Ruiz

{"title":"Effect of a 24-Week Concurrent Exercise Intervention on Neck Adiposity and Its Distribution in Young Adults: The ACTIBATE Randomized Controlled Trial.","authors":"Maria Jose Arias-Tellez, Francisco M Acosta, Elisa Merchan-Ramirez, Borja Martínez-Téllez, Guillermo-Sánchez Delgado, Jose M Llamas-Elvira, Jonatan R Ruiz","doi":"10.1123/ijsnem.2022-0246","DOIUrl":"https://doi.org/10.1123/ijsnem.2022-0246","url":null,"abstract":"Neck adipose tissue (NAT) accumulation and neck circumference are independent predictors of cardiometabolic risk (CMR) and low-grade chronic inflammation in young adults. The present study examines whether a 24-week concurrent exercise intervention can reduce NAT volume and neck circumference in young adults, and whether any changes in these variables are related to changes in body composition, CMR, and the inflammatory profile. Seventy-four participants (51 women, age 22 ± 2 years) were included in the main analyses, after being randomly assigned to either a (a) control (n = 34), (b) moderate-intensity exercise (n = 19), or (c) vigorous-intensity exercise (n = 21) group. Participants in the exercise groups trained 3-4 days/week (endurance + resistance exercise training). NAT volume and NAT distribution across different depots were estimated using computed tomography before and after the intervention. Anthropometric variables, body composition (determined by dual-energy X-ray absorptiometry), and CMR/inflammatory markers were also recorded. The exercise intervention did not reduce the total NAT volume, nor was NAT distribution affected (p > .05). However, it did reduce neck circumference in the vigorous-intensity exercise group compared with the moderate-intensity exercise and control groups (by 0.8 and 1 cm, respectively, p ≤ .05). Changes in total NAT and neck circumference were positively, albeit weakly, related (adj. R2: .05-.21, all p ≤ .05) to changes in body weight and adiposity, leptin (only total NAT), and CMR (only neck circumference). Altogether 24 weeks of concurrent exercise does not appear to reduce NAT accumulation in young adults, but may slightly reduce neck circumference in those who partake in vigorous exercise.","PeriodicalId":14334,"journal":{"name":"International journal of sport nutrition and exercise metabolism","volume":"33 5","pages":"255-264"},"PeriodicalIF":2.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10338006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erratum. Ergogenic Effects of Very Low to Moderate Doses of Caffeine on Vertical Jump Performance. 勘误表。极低至中等剂量咖啡因对垂直跳跃性能的影响。

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-09-01 DOI: 10.1123/ijsnem.2023-0153

引用次数: 0

Stop, Collaborate, and Listen. 停下来，合作，倾听。

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-09-01 DOI: 10.1123/ijsnem.2023-0134

James A Betts

引用次数: 0

Erratum. CYP1A2 Genotype Polymorphism Influences the Effect of Caffeine on Anaerobic Performance in Trained Males. 勘误表。CYP1A2基因型多态性影响咖啡因对训练雄性无氧性能的影响。

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-09-01 DOI: 10.1123/ijsnem.2023-0135

引用次数: 0

The Postprandial Plasma Amino Acid Response Does Not Differ Following the Ingestion of a Solid Versus a Liquid Milk Protein Product in Healthy Adult Females. 健康成年女性摄入固体和液体牛奶蛋白产品后餐后血浆氨基酸反应无差异。

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-09-01 DOI: 10.1123/ijsnem.2023-0038

Glenn A A van Lieshout, Jorn Trommelen, Jean Nyakayiru, Janneau van Kranenburg, Joan M Senden, Lex B Verdijk, Luc J C van Loon

{"title":"The Postprandial Plasma Amino Acid Response Does Not Differ Following the Ingestion of a Solid Versus a Liquid Milk Protein Product in Healthy Adult Females.","authors":"Glenn A A van Lieshout, Jorn Trommelen, Jean Nyakayiru, Janneau van Kranenburg, Joan M Senden, Lex B Verdijk, Luc J C van Loon","doi":"10.1123/ijsnem.2023-0038","DOIUrl":"https://doi.org/10.1123/ijsnem.2023-0038","url":null,"abstract":"Dietary protein digestion and amino acid absorption rates are modulated by numerous factors such as the food matrix. It has been speculated that protein ingested in liquid form is more rapidly digested and absorbed when compared with ingestion in solid form. Here, we assessed the postprandial plasma amino acid availability following ingestion of a single bolus of protein provided in either liquid or solid form. Twelve healthy, young females were included in this randomized cross-over study. On two separate test days, participants ingested 20-g milk protein concentrate in solid form (protein bar) or in liquid form (protein drink). Products were composed of matched ingredients and, thereby, had the same macro- and micronutrient composition. On both test days, arterialized blood samples were collected at regular time intervals for up to 4 hr following protein ingestion to assess the postprandial rise in plasma amino acid concentrations. Protein ingestion robustly elevated circulating plasma amino acid concentrations (p < .001), with no significant differences between treatments (p = .088). The incremental area under the curve of the postprandial rise in total plasma amino acid concentrations did not differ following bar versus drink consumption (160 ± 73 vs. 160 ± 71 mmol·L-1·240 min-1, respectively; 95% confidence interval [-37, 37]; Cohen's dz = 0.003; p = .992). Ingestion of protein in liquid or solid form does not modulate postprandial amino acid availability in healthy, female adults. Any differences in protein digestion and amino acid absorption due to differences in food matrix are not attributed to the protein being consumed as a bar or as a drink.","PeriodicalId":14334,"journal":{"name":"International journal of sport nutrition and exercise metabolism","volume":"33 5","pages":"247-254"},"PeriodicalIF":2.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9984747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Ergogenic Effects of Very Low to Moderate Doses of Caffeine on Vertical Jump Performance. 极低至中等剂量咖啡因对垂直跳跃性能的影响。

IF 2.5 3区医学

International journal of sport nutrition and exercise metabolism Pub Date : 2023-09-01 DOI: 10.1123/ijsnem.2023-0061

Teppei Matsumura, Yuki Takamura, Kazushi Fukuzawa, Kazuya Nakagawa, Shunya Nonoyama, Keigo Tomoo, Hayato Tsukamoto, Yasushi Shinohara, Motoyuki Iemitsu, Akinori Nagano, Tadao Isaka, Takeshi Hashimoto

{"title":"Ergogenic Effects of Very Low to Moderate Doses of Caffeine on Vertical Jump Performance.","authors":"Teppei Matsumura, Yuki Takamura, Kazushi Fukuzawa, Kazuya Nakagawa, Shunya Nonoyama, Keigo Tomoo, Hayato Tsukamoto, Yasushi Shinohara, Motoyuki Iemitsu, Akinori Nagano, Tadao Isaka, Takeshi Hashimoto","doi":"10.1123/ijsnem.2023-0061","DOIUrl":"https://doi.org/10.1123/ijsnem.2023-0061","url":null,"abstract":"Although the ergogenic effects of 3-6 mg/kg caffeine are widely accepted, the efficacy of low doses of caffeine has been discussed. However, it is unclear whether the ergogenic effects of caffeine on jump performance are dose responsive in a wide range of doses. This study aimed to examine the effect of very low (1 mg/kg) to moderate doses of caffeine, including commonly utilized ergogenic doses (i.e., 3 and 6 mg/kg), on vertical jump performance. A total of 32 well-trained collegiate sprinters and jumpers performed countermovement jumps and squat jumps three times each in a double-blind, counterbalanced, randomized, crossover design. Participants ingested a placebo or 1, 3, or 6 mg/kg caffeine 60 min before jumping. Compared with the placebo, 6 mg/kg caffeine significantly enhanced countermovement jump (p < .001) and squat jump (p = .012) heights; furthermore, 1 and 3 mg/kg of caffeine also significantly increased countermovement jump height (1 mg/kg: p = .002, 3 mg/kg: p < .001) but not squat jump height (1 mg/kg: p = .436, 3 mg/kg: p = .054). There were no significant differences among all caffeine doses in both jumps (all p > .05). In conclusion, even at a dose as low as 1 mg/kg, caffeine improved vertical jump performance in a dose-independent manner. This study provides new insight into the applicability and feasibility of 1 mg/kg caffeine as a safe and effective ergogenic strategy for jump performance.","PeriodicalId":14334,"journal":{"name":"International journal of sport nutrition and exercise metabolism","volume":"33 5","pages":"275-281"},"PeriodicalIF":2.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10393459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1