Journal of exercise and nutrition最新文献_第4页

Effects of Steady State and High-Intensity Exercise on Compensatory Eating Behavior 稳态高强度运动对补偿性饮食行为的影响

Journal of exercise and nutrition Pub Date : 2022-03-19 DOI: 10.53520/jen2022.103119

E. Sauers, J. Klein, Chad A. Witmer, G. Moir, S. Davis

{"title":"Effects of Steady State and High-Intensity Exercise on Compensatory Eating Behavior","authors":"E. Sauers, J. Klein, Chad A. Witmer, G. Moir, S. Davis","doi":"10.53520/jen2022.103119","DOIUrl":"https://doi.org/10.53520/jen2022.103119","url":null,"abstract":"Introduction: Studies have shown differences in weight loss between high-intensity interval training (HI) and moderate continuous training (SS) potentially due to compensatory eating behaviors. The aim of this study is to observe the differences in eating behaviors HI and SS exercise.\u0000Methods: Nine lean, college-aged individuals and participated in this study. Subjects completed three trials in a randomized order. During HI, subjects completed 16 intervals alternating between 90% and 50% VO2max (1:1). During SS, subjects ran at 70% VO2max. Subjects sat quietly during the control trial. Food logs were collected 24 hours before and after exercise bouts. Data was analyzed using one-way repeated measures ANOVA. All data are presented as mean ± SE.\u0000Results: Caloric intake was not different between trials (CON: 1558 ± 172 kcal, HI: 1851±150 kcal, SS: 1683±143 kcal, p=0.23). Carbohydrate was not different between trials (CON: 186 ± 25g, HI: 225 ± 24g, SS: 201 ± 23g, p=0.41). Fat was not different between trials (CON: 55 ± 8g, HI: 73 ± 9g, SS: 63 ± 5g, p=0.16). Protein was not different between trials (CON: 78 ± 28g, HI: 69 ± 10g, SS: 70 ± 14g, p=0.64).\u0000Conclusions: Acute HI exercise did not lead to different compensatory eating behaviors compared to SS exercise. Practitioners may feel confident to recommend any exercise model without concern for compensatory overeating.","PeriodicalId":73743,"journal":{"name":"Journal of exercise and nutrition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47635556","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: 0

Associations Between Ultra-Processed Food Consumption and BMI, Sedentary Time, and Adverse Dietary Habits in Active Young Adults 活跃年轻人的超加工食品消费与BMI、久坐时间和不良饮食习惯的关系

Journal of exercise and nutrition Pub Date : 2022-03-18 DOI: 10.53520/jen2022.103121

Bailey T. Capra, E. Matthews, A. Kerrihard, P. Hosick

{"title":"Associations Between Ultra-Processed Food Consumption and BMI, Sedentary Time, and Adverse Dietary Habits in Active Young Adults","authors":"Bailey T. Capra, E. Matthews, A. Kerrihard, P. Hosick","doi":"10.53520/jen2022.103121","DOIUrl":"https://doi.org/10.53520/jen2022.103121","url":null,"abstract":"Introduction: Ultra-processed foods (UPF), or packaged foods defined by industrial processing and food additives, are associated with poor nutrient quality of the diet, weight gain, and may impact physical activity levels. Young active populations are understudied with respect to UPF. The purpose of this study is to explore relationships between UPF and BMI, dietary habits, and physical activity in young active adults.\u0000Methods: Healthy college students (n=42) completed two 24-hr dietary recalls and physical activity surveys. Data were median split into the top 50th percentile (HIGHUPF) and low 50th percentile (LOWUPF) groups based on UPF intake (%). Independent samples t-tests were used to analyze differences between groups.\u0000Results: No significant differences in BMI (kg/m2) were seen between HIGHUPF (25.5) and LOWUPF (23.7) (p=0.055). A significantly higher BMI was seen in HIGHUPF after controlling for physical activity (p=0.04). Compared to LOWUPF, HIGHUPF exhibited lower protein (%) intake (p=0.04), lower fiber intake (p=0.05), higher added sugar (tsp/1000kcal) intake (p=0.05), higher refined grains (oz/1,000kcal) intake (p=0.001), and higher sedentary time (mins/day) (p=0.001).\u0000Conclusions: Our results suggest that ≥476 mins/week of recreational physical activity diminishes the relationship between UPF and BMI. Greater UPF intake is associated with greater sedentary time, and adverse dietary makeup.","PeriodicalId":73743,"journal":{"name":"Journal of exercise and nutrition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44621519","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: 0

A Pilot Study: Does Oxygenated Water Support Lactate Clearance Kinetics After Simulated Games in Elite Taekwondo Athletes? 一项初步研究:含氧水是否支持精英跆拳道运动员在模拟比赛后的乳酸清除动力学?

Journal of exercise and nutrition Pub Date : 2022-03-15 DOI: 10.53520/jen2022.103117

Yu-Kai Chung, Yen-Ni Wu, S. Wang, Cheng-Shiun He

{"title":"A Pilot Study: Does Oxygenated Water Support Lactate Clearance Kinetics After Simulated Games in Elite Taekwondo Athletes?","authors":"Yu-Kai Chung, Yen-Ni Wu, S. Wang, Cheng-Shiun He","doi":"10.53520/jen2022.103117","DOIUrl":"https://doi.org/10.53520/jen2022.103117","url":null,"abstract":"Introduction: To further understand the effects of ingesting oxygenated water supplementation (OS) on heart rate (HR), rating of perceived exertion (RPE), and blood lactate (BL) during two simulated combats in elite Taekwondo athletes.\u0000Methods: Eight Taekwondo athletes from National Chung Cheng University participated in the study. In the counterbalanced and double-blind design, all participants have randomly given OS or placebo (PL). Participants ingested a series of 4 × 15mL volumes of either OS or PL before and during the combats. HR, RPE, and BL were measured before and after the combats. Data were analyzed by repeated-measures two-way ANOVA.\u0000Results: There was no interaction effect in HR and BL between the two groups during the simulated combats (p = 0.982). There was a significant time effect (p = 0.002) in BL between two combats (Combat-1-pre: 2.0 ± 0.9, Post-1: 11.7 ± 4.8, Post-5: 8.7 ± 3.1, Post-10: 7.0 ± 3.0, Post-90: 2.7 ± 0.9; Combat-2-pre: 2.7 ± 0.9, Post-1: 14.7 ± 3.9, Post-5: 9.3 ± 3.0, Post-10: 7.8 ± 2.9, Post-90: 4.6 ± 2.2 mmol/L).\u0000Conclusions: In two simulated Taekwondo competitions, uptake of OS appeared to have no effects on HR and BL. Furthermore, the study showed that repeated exposures to Taekwondo combat were associated with increased BL response.","PeriodicalId":73743,"journal":{"name":"Journal of exercise and nutrition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45754926","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: 0

The Impact of Long-Chain Omega-3 Polyunsaturated Fatty Acid Supplementation on Body Composition, Strength, and Power in Collegiate Athletes 长链Omega-3多不饱和脂肪酸补充对大学运动员身体组成、力量和力量的影响

Journal of exercise and nutrition Pub Date : 2022-02-28 DOI: 10.53520/jen2022.103116

J. Heileson, Ashlyne P. Elliott, J. Buzzard, Mitchell C. Cholewinski, Andrew R. Gallucci, L. Funderburk

{"title":"The Impact of Long-Chain Omega-3 Polyunsaturated Fatty Acid Supplementation on Body Composition, Strength, and Power in Collegiate Athletes","authors":"J. Heileson, Ashlyne P. Elliott, J. Buzzard, Mitchell C. Cholewinski, Andrew R. Gallucci, L. Funderburk","doi":"10.53520/jen2022.103116","DOIUrl":"https://doi.org/10.53520/jen2022.103116","url":null,"abstract":"Introduction: Recent evidence suggests that long-chain omega-3 polyunsaturated fatty acid (LC n-3) supplementation may enhance training adaptations associated with athletic performance. This study examined the impact of LC n-3 supplementation on body composition, strength, and power in collegiate athletes.\u0000Methods: Athletes (n = 27) were assigned to one of two conditions for eight weeks: fish oil (FO, 3.0 g∙d-1 [1.75g EPA and 1.1g DHA], n = 15) or placebo (PL, high-oleic safflower oil, 3g, n = 12) for 8-weeks. Athletes completed a three-day food log and questionnaire, provided a blood sample via fingerstick to determine their LC n-3 status, conducted body composition analysis through dual energy x-ray absorptiometry, and had their handgrip strength (HGS) and countermovement jump assessed.\u0000Results: In the FO group, the omega-3 index, EPA and DHA increased by 73%, 332% and 64%, respectively, while there was no change in the placebo group. HGS significantly improved in the FO group (p = .018, +9.1%) and did not change in the placebo group (p = .615, -1.8%). Body composition and power were similar between groups. The change in HGS was positively correlated with the relative change in EPA and EPA:AA ratio.\u0000Conclusions: For in-season athletes, the addition of LC n-3 supplementation to a dietary regime increases blood LC n-3 status and may preserve or improve muscular performance while in-season.","PeriodicalId":73743,"journal":{"name":"Journal of exercise and nutrition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45057096","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: 0

Hemodynamic and Lactate Response to Exhaustive Exercise with L-Arginine Supplementation 补充L-精氨酸对力竭性运动的血液动力学和乳酸反应

Journal of exercise and nutrition Pub Date : 2022-01-13 DOI: 10.53520/jen2022.103114

M. Feeback, Bailey Reitsma

{"title":"Hemodynamic and Lactate Response to Exhaustive Exercise with L-Arginine Supplementation","authors":"M. Feeback, Bailey Reitsma","doi":"10.53520/jen2022.103114","DOIUrl":"https://doi.org/10.53520/jen2022.103114","url":null,"abstract":"Introduction: To further understand the effects of L-arginine on both its ability to enhance lactate clearance and increase overall blood flow before, during, and after exhaustive anaerobic exercise.\u0000Methods: Twelve healthy male subjects between the ages of 18-25 first completed an initial visit where baseline data was recorded. Subjects completed three additional visits, in which they ingested either a placebo, two-gram or four-gram dose of L-arginine. Blood flow (BF) and lactate were recorded before ingestion of the treatment, 5 and 15-minutes post-ingestion prior to performing a push-up test to volitional fatigue. Immediately following the push-up test, BF and lactate were assessed and again 15-minutes post exercise.\u0000Results: Blood lactate did not differ across condition (p=0.569). Lactate clearance was not influenced by L-arginine when analyzing the Area Under Curve. Blood flow increased with ingestion of the four-gram dose while at rest (the 15-minute mark). Blood flow was also enhanced in the four-gram dose immediately after exercise at the 25-minute mark. \u0000Conclusions: The data suggests that a four-gram dose of L-arginine plays a more significant role in blood flow than the clearance of lactate after exercise compared to a two-gram dose or placebo.","PeriodicalId":73743,"journal":{"name":"Journal of exercise and nutrition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48610462","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: 0

Enhancing Performance and Health Outcomes with Optimal Exercise and Nutrition Programming 通过优化运动和营养计划提高成绩和健康结果

Journal of exercise and nutrition Pub Date : 2022-01-13 DOI: 10.53520/jen2022.103115

Chris Algieri

引用次数: 0

Remotely Supervised Home-Based Resistance Training and Orthostatic Tolerance in Young Physically Inactive Women During COVID-19 新冠肺炎期间身体不活跃的年轻女性的远程监督家庭阻力训练和正位耐力

Journal of exercise and nutrition Pub Date : 2021-11-16 DOI: 10.53520/jen2021.103111

Caroline Merguerian, Annika Smith, S. Ives

{"title":"Remotely Supervised Home-Based Resistance Training and Orthostatic Tolerance in Young Physically Inactive Women During COVID-19","authors":"Caroline Merguerian, Annika Smith, S. Ives","doi":"10.53520/jen2021.103111","DOIUrl":"https://doi.org/10.53520/jen2021.103111","url":null,"abstract":"Introduction: Orthostatic intolerance (OI) is the inability of the cardiovascular system to adequately adjust to gravity upon standing, resulting in lightheadedness or syncope. OI can be characteristic of pathology (e.g. postural orthostatic tachycardia syndrome), which disproportionately affect women, and is compounded by inactivity. Thus, we tested the effects of remotely supervised home-based, 4-week resistance training (RT) program vs. control on the orthostatic stress response of previously inactive young females using the NASA Lean Test (NLT).\u0000Methods: Systolic (SBP) and diastolic (DBP) blood pressures, and heart rate (HR) were assessed during the NLT, pre- and post-training, along with fitness and body composition in females randomized to RT or control (n=7).\u0000Results: RT improved fitness (group*intervention, p=0.047) and fat-mass (-3.4±2.9 vs. +0.3±0.7Δlbs, p=0.037) over control. The NLT significantly altered SBP, DBP, and HR (all, p<0.01). For SBP, the interaction of group*intervention approached significance (p=0.071), lowering SBP in the RT group with the intervention. In DBP, the group*intervention was not significant (p=0.558). For HR, the group*intervention interaction approached significance (p=0.066).\u0000Conclusions: In the current study, short-term remotely-supervised RT using bands tended to decrease SBP and HR during orthostatic stress in young, otherwise healthy, previously inactive females, suggesting improved health but perhaps not orthostatic tolerance.","PeriodicalId":73743,"journal":{"name":"Journal of exercise and nutrition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49292513","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: 2

The Effects of Different Exercise Intensities and Modalities on Cortisol Production in Healthy Individuals: A Review 不同运动强度和方式对健康个体皮质醇生成的影响:综述

Journal of exercise and nutrition Pub Date : 2021-10-28 DOI: 10.53520/jen2021.103108

Ricardo Torres, P. Koutakis, Jeffrey S. Forsse

{"title":"The Effects of Different Exercise Intensities and Modalities on Cortisol Production in Healthy Individuals: A Review","authors":"Ricardo Torres, P. Koutakis, Jeffrey S. Forsse","doi":"10.53520/jen2021.103108","DOIUrl":"https://doi.org/10.53520/jen2021.103108","url":null,"abstract":"Cortisol is a hormone that is secreted in response to physiological stress. Exercise contributes significantly to changes in circulating cortisol concentrations. With exercise, there is increased activation of the sympathetic system to stimulate the release of adrenocorticotropic hormone, which releases cortisol into the blood. Current research has predominately studied the effects that aerobic exercise and resistance training have on cortisol production. Prolonged aerobic exercise, especially at higher intensities, significantly elevates cortisol concentrations when compared to similar duration and intensities of resistance exercise. Age, gender, physical fitness level, exercise intensity, training status, and modality are all variables that influence the production of cortisol. Elevated cortisol concentrations are highly indicative of muscle catabolism, increasing the loss of lean muscle tissue. This is a significant health concern for the growing elderly population. The rate of cortisol production changes as an individual ages and has been observed to have differing responses to exercise intensities in males and females. Cortisol production is correlated with exercise intensity and duration but does not increase the same across all exercise intensities. Higher exercise intensities and duration appear to be the main contributing factors that influence the production of cortisol, increasing the potential for muscle catabolism and muscle loss.","PeriodicalId":73743,"journal":{"name":"Journal of exercise and nutrition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45558775","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: 1

Iron Status and Dietary Patterns of Collegiate Female Distance Runners 高校女子长跑运动员的铁状况与饮食模式

Journal of exercise and nutrition Pub Date : 2021-09-09 DOI: 10.53520/jen2021.103106

Rachel Walny, Todd Keylock, C. Hamady, Wan Shen

{"title":"Iron Status and Dietary Patterns of Collegiate Female Distance Runners","authors":"Rachel Walny, Todd Keylock, C. Hamady, Wan Shen","doi":"10.53520/jen2021.103106","DOIUrl":"https://doi.org/10.53520/jen2021.103106","url":null,"abstract":"Introduction: Iron is in oxygen transport which is important for athletic performance. Many female distance runners struggle to maintain adequate iron status through diet alone and rely on iron supplementation. \u0000Methods: Interviews were conducted with eight members of the Women’s Cross Country team at a Division I university to assess dietary patterns and behaviors related to iron status. This information, along with food records and serum ferritin levels, were analyzed qualitatively for trends with a focus on iron intake, total energy intake, and food components that enhance and inhibit iron absorption. \u0000Results: All participants took an iron supplement at the time of the study. All but one had experienced poor iron status currently or in the past. Most participants did not meet dietary iron, Vitamin E, or estimated energy requirements. Half of the participants expressed an attempt to increase iron intake in response to higher training loads. Half attempted to increase intake in response to a low ferritin result or iron deficiency symptoms. \u0000Conclusions: Consistently low energy and iron intake among participants indicated the likelihood of a relationship with poor iron status and/or reliance on supplementation. The most common motivation for increasing iron intake was the prevention of symptoms.","PeriodicalId":73743,"journal":{"name":"Journal of exercise and nutrition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47675333","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: 0

Comparison of Peak Aerobic Capacity Between the Treadmill and a Skiing Ergometer 跑步机和滑雪仪峰值有氧能力的比较

Journal of exercise and nutrition Pub Date : 2021-08-16 DOI: 10.53520/jen2021.103101

H. Nelson, A. Bosak, Russell Lowell, M. Mcdermott, Branden Ziebell, Moroni de Moors, Anna Blackley, Samuel J. Arter

{"title":"Comparison of Peak Aerobic Capacity Between the Treadmill and a Skiing Ergometer","authors":"H. Nelson, A. Bosak, Russell Lowell, M. Mcdermott, Branden Ziebell, Moroni de Moors, Anna Blackley, Samuel J. Arter","doi":"10.53520/jen2021.103101","DOIUrl":"https://doi.org/10.53520/jen2021.103101","url":null,"abstract":"Introduction: The Concept2 SkiErg is increasing in popularity and is widely used to provide a low impact total body workout. Because of these benefits, the SkiErg could be an ideal tool for fitness testing. Therefore, the purpose of this study was to compare VO2peak values elicited from a treadmill (TM) and SkiErg (SE) graded exercise test (GXT).\u0000Methods: Twenty-two averagely fit females completed 2 GXT protocols to volitional exhaustion on a TM and SE. Peak VO2, HR, VE, TTE, and RER were compared using paired-samples t-tests with significant differences at p≤0.05. Max RPE was compared using a Wilcoxon Signed Rank Test.\u0000Results: TM was significantly greater than SE for VO2peak (43.82±1.07 vs 33.97±5.01 ml/kg/min, p<0.01), HR (189±8 vs 182±11 bpm, p<0.01), RPE (18.91+1.11vs 17.26+2.03, p=0.02), VE (95.44±11.26 vs 86.21±2.90 L/min, p=0.015), and TTE (550.16+137.56 vs 391.86±81.20 sec, p<0.01). RER was significantly greater on the SE (1.16±0.08 vs 1.12±0.06, p=0.024).\u0000Conclusion: Results suggest that TM elicits higher max values for VO2, HR, TTE, VE, and RPE compared to SE, while SE elicits a higher RER in the current population. SE could be used as an alternative mode of testing in averagely-fit females but does not directly compare to TM values.","PeriodicalId":73743,"journal":{"name":"Journal of exercise and nutrition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47452771","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: 1