Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme最新文献

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Nutritional physiology and body composition changes during a rapid ascent to high altitude. 在快速上升到高海拔地区的过程中,营养生理学和身体成分会发生变化。
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2024-06-01 Epub Date: 2024-02-06 DOI: 10.1139/apnm-2023-0338
Carmen Santangelo, Vittore Verratti, Simona Mrakic-Sposta, Federica Ciampini, Sofia Bonan, Pamela Pignatelli, Tiziana Pietrangelo, Serena Pilato, Samanta Moffa, Antonella Fontana, Raffaela Piccinelli, Cinzia Le Donne, Lucio Lobefalo, Matteo Beccatelli, Pierluigi Lodi Rizzini, Davide Seletti, Rocco Mecca, Tommaso Beccatelli, Danilo Bondi
{"title":"Nutritional physiology and body composition changes during a rapid ascent to high altitude.","authors":"Carmen Santangelo, Vittore Verratti, Simona Mrakic-Sposta, Federica Ciampini, Sofia Bonan, Pamela Pignatelli, Tiziana Pietrangelo, Serena Pilato, Samanta Moffa, Antonella Fontana, Raffaela Piccinelli, Cinzia Le Donne, Lucio Lobefalo, Matteo Beccatelli, Pierluigi Lodi Rizzini, Davide Seletti, Rocco Mecca, Tommaso Beccatelli, Danilo Bondi","doi":"10.1139/apnm-2023-0338","DOIUrl":"10.1139/apnm-2023-0338","url":null,"abstract":"<p><p>Exposure to high altitude might cause the body to adapt with negative energy and fluid balance that compromise body composition and physical performance. In this field study involving 12 healthy adults, sex-balanced, and aged 29 ± 4 years with a body mass index of 21.6 ± 1.8 kg/m<sup>2</sup>, we investigated the effects of a 4-day trekking up to 4556 m a.s.l. on Monte Rosa (Alps, Italy). The food intake was recorded using food diaries and nutrient averages were calculated. The bio-impedance analysis was performed at low and high altitudes, and a wearable biosensor (Swemax) was used to track hydro-saline losses in two participants. Daily total energy intake was 3348 ± 386 kcal for males and 2804 ± 415 kcal for females (13%-14% protein, 35% fat, 44%-46% carbohydrates). Although there was a significant body weight loss (65.0 ± 9.3 vs. 64.2 ± 9.10 kg, <i>p</i> < 0.001, <i>d</i> = 1.398), no significant changes in body composition parameter were found but a trend in the increase of the bioelectrical phase angle in males (<i>p</i> = 0.059, <i>d</i> = -0.991). Body water percentage significantly changed (<i>p</i> = 0.026, <i>η</i><sup>2</sup> <sub><i>p</i> </sub>= 0.440), but the absolute water did not, suggesting that the weight loss was not due to water loss. Salivary and urinary osmolality did not change. A reduction in sweat rate at higher altitudes was observed in both participants. Interestingly, salivary leptin increased (<i>p</i> = 0.014, <i>η</i><sup>2</sup> <sub><i>p</i> </sub>= 0.510), and salivary ghrelin decreased (<i>p</i> = 0.036, <i>η</i><sup>2</sup> <sub><i>p</i></sub>  = 0.403). Therefore, the 4-day trekking at altitude of hypoxia exposure induced changes in satiety and appetite hormones. High altitude expeditions require more specific nutritional guidance, and using multiplex analysis could help in monitoring fluid balance and body composition.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139699073","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
Increasing aerobic exercise intensity fails to consistently improve the glycemic response in people living with prediabetes or type 2 diabetes mellitus: the INTENSITY trial. 增加有氧运动强度无法持续改善糖尿病前期或 2 型糖尿病患者的血糖反应:INTENSITY试验。
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2024-06-01 Epub Date: 2024-02-21 DOI: 10.1139/apnm-2023-0495
Travis J Hrubeniuk, Danielle R Bouchard, Brendon J Gurd, Martin Sénéchal
{"title":"Increasing aerobic exercise intensity fails to consistently improve the glycemic response in people living with prediabetes or type 2 diabetes mellitus: the INTENSITY trial.","authors":"Travis J Hrubeniuk, Danielle R Bouchard, Brendon J Gurd, Martin Sénéchal","doi":"10.1139/apnm-2023-0495","DOIUrl":"10.1139/apnm-2023-0495","url":null,"abstract":"<p><p>Some individuals with prediabetes or type 2 diabetes mellitus (T2DM) who engage in exercise will not experience the anticipated improvements in glycemic control, referred to as non-responders. Increasing exercise intensity may improve the proportion of individuals who become responders. The objectives were to (<i>i</i>) identify responders and non-responders based on changes in glycated hemoglobin (HbA1c) in individuals with prediabetes or T2DM following 16 weeks of aerobic exercise; (<i>ii</i>) investigate if increasing exercise intensity enhances the responders' status for individuals not previously responding favourably to the intervention. Participants (<i>n =</i> 40; age = 58.0 years (52.0-66.0); HbA1c = 7.0% (6.0-7.2)) engaged in a two-phase, randomized study design. During phase one, participants performed 16 weeks of treadmill-based, supervised, aerobic exercise at 4.5 metabolic equivalents (METs) for 150 min per week. Thereafter, participants were categorized as responders, non-responders, or unclear based on the 90% confidence interval above, below, or crossing a 0.3% reduction in HbA1c. For phase two, participants were randomized to a maintained intensity (4.5 METs) or increased intensity (6.0 METs) group for 12 weeks. Following phase one, two (4.1%) participants were categorized as responders, four (8.2%) as non-responders, and 43 (87.7%) as unclear. Following phase two, two from the increased intensity group and one from the maintained intensity group experienced an improvement in response categorization. There were no significant between or within group (maintained vs. increased) differences in HbA1c. For most people with prediabetes or T2DM, increasing exercise intensity by 1.5 METs does not improve response categorization.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139934635","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
Translation and cross-cultural adaptation of the Get Active Questionnaire for Pregnancy in Colombian Spanish. 用哥伦比亚西班牙语翻译和跨文化改编 "孕期积极行动问卷"。
Diana Carolina Rodríguez-González, Nelson Fernelly González Cetina, Carolina Sandoval Cuellar, Ledmar Jovanny Vargas Rodríguez
{"title":"Translation and cross-cultural adaptation of the Get Active Questionnaire for Pregnancy in Colombian Spanish.","authors":"Diana Carolina Rodríguez-González, Nelson Fernelly González Cetina, Carolina Sandoval Cuellar, Ledmar Jovanny Vargas Rodríguez","doi":"10.1139/apnm-2023-0021","DOIUrl":"https://doi.org/10.1139/apnm-2023-0021","url":null,"abstract":"<p><p>To ensure safe, optimal, and personalized physical activity, exercise, or sport during pregnancy, the Canadian Society for Exercise Physiology (CSEP), the Society of Obstetricians and Gynaecologists of Canada (SOGC), the College of Family Physicians of Canada, the Women's Health Division of the Canadian Physiotherapy Association, developed the Get Active Questionnaire for Pregnancy (GAQ_P) as a pre-assessment to identify women who may have a relative or absolute contraindication to prenatal exercise that requires further consultation with a health professional to determine if exercise can or should be continued or initiated during pregnancy. This study aims to translate and cross-culturally adapt the GAQ_P for use in Colombian Spanish. The original instrument was developed in English and French for the evaluation of the health of pregnant women before the beginning of physical activity and the guidelines for the same. Ten steps were followed according to the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) Translation and Cultural Adaptation guidelines, with the participation of 4 experts. The comprehensibility of the instrument was 99% which shows a high percentage of intelligibility of the document. This article describes the translation and cross-cultural adaptation of the GAQ_P for use in Colombian Spanish, contributing positively to pre-exercise screening during pregnancy in Colombia.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141177075","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
Independent and combined effects of calorie restriction and AICAR on glucose uptake and insulin signaling in skeletal muscles from 24-month-old female and male rats. 卡路里限制和 AICAR 对 24 月龄雌性和雄性大鼠骨骼肌葡萄糖摄取和胰岛素信号转导的独立影响和联合影响
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2024-05-01 Epub Date: 2024-01-05 DOI: 10.1139/apnm-2023-0522
Haiyan Wang, Amy Zheng, Dominic Thorley, Edward B Arias, Gregory D Cartee
{"title":"Independent and combined effects of calorie restriction and AICAR on glucose uptake and insulin signaling in skeletal muscles from 24-month-old female and male rats.","authors":"Haiyan Wang, Amy Zheng, Dominic Thorley, Edward B Arias, Gregory D Cartee","doi":"10.1139/apnm-2023-0522","DOIUrl":"10.1139/apnm-2023-0522","url":null,"abstract":"<p><p>We assessed the effects of two levels of calorie restriction (CR; eating either 15% or 35% less than ad libitum, AL, food intake for 8 weeks) by 24-month-old female and male rats on glucose uptake (GU) and phosphorylation of key signaling proteins (Akt; AMP-activated protein kinase, AMPK; Akt substrate of 160 kDa, AS160) measured in isolated skeletal muscles that underwent four incubation conditions (without either insulin or AICAR, an AMPK activator; with AICAR alone; with insulin alone; or with insulin and AICAR). Regardless of sex: (1) neither CR group versus the AL group had greater GU by insulin-stimulated muscles; (2) phosphorylation of Akt in insulin-stimulated muscles was increased in 35% CR versus AL rats; (3) prior AICAR treatment of muscle resulted in greater GU by insulin-stimulated muscles, regardless of diet; and (4) AICAR caused elevated phosphorylation of acetyl CoA carboxylase, an indicator of AMPK activation, in all diet groups. There was a sexually dimorphic diet effect on AS160 phosphorylation, with 35% CR exceeding AL for insulin-stimulated muscles in male rats, but not in female rats. Our working hypothesis is that the lack of a CR-effect on GU by insulin-stimulated muscles was related to the extended duration of the ex vivo incubation period (290 min compared to 40-50 min that was previously reported to be effective). The observed efficacy of prior treatment of muscles with AICAR to improve glucose uptake in insulin-stimulated muscles supports the strategy of targeting AMPK with the goal of improving insulin sensitivity in older females and males.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139106996","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
Rowing and pain: does rowing lead to exercise-induced hypoalgesia? 划船与疼痛:划船会导致运动性痛觉减退吗?
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2024-05-01 Epub Date: 2024-01-05 DOI: 10.1139/apnm-2023-0346
Fabian Tomschi, Steffen Herzig, Thomas Hilberg
{"title":"Rowing and pain: does rowing lead to exercise-induced hypoalgesia?","authors":"Fabian Tomschi, Steffen Herzig, Thomas Hilberg","doi":"10.1139/apnm-2023-0346","DOIUrl":"10.1139/apnm-2023-0346","url":null,"abstract":"<p><p>Physical activity acutely alters pain processing known as exercise-induced hypoalgesia (EIH). This randomized controlled crossover study investigated the effects of two different rowing exercises on EIH and to explore whether possible EIH effects are related to individual rowing specific performance. Fifty male experienced rowers conducted two rowing sessions (submaximal: 30 min of moderate rowing (70% of maximum heart rate); maximal: 350 m in an all-out fashion) and a control session. Pre and post exercise pain sensitivity was measured bilaterally using pressure pain thresholds (PPT; Newton (N)) at the elbow, knee, ankle, sternum, and forehead. Individual performance was determined as maximum watt/kg and was tested for correlations with changes in PPT. Higher PPT values were observed after maximal exercise at all landmarks with a mean change ranging from 2.5 ± 7.8 N (right elbow; <i>p</i> = 0.027; <i>d<sub>z</sub></i> = 0.323) to 10.0 ± 12.2 N (left knee; <i>p</i> ≤ 0.001; <i>d<sub>z</sub></i> = 0.818). The submaximal (range from -1.6 ± 8.8 N (Sternum; <i>p =</i> 0.205; <i>d<sub>z</sub></i> = 0.182) to 2.0 ± 10.3 N (right ankle; <i>p =</i> 0.176; <i>d<sub>z</sub></i> = 0.194)) and control session (range from -0.5 ± 7.6 N (left elbow; <i>p =</i> 0.627; <i>d<sub>z</sub></i> = 0.069) to 2.6 ± 9.1 N (right ankle; <i>p =</i> 0.054; <i>d<sub>z</sub></i> = 0.279)) did not induce changes. Relative performance levels were not correlated to EIH (range from: <i>r</i> = -0.129 (<i>p</i> = 0.373) at sternum to <i>r</i> = 0.176 (<i>p</i> = 0.221) at left knee). EIH occurred globally after a short maximal rowing exercise while no effects occurred after rowing for 30 min at submaximal intensity. EIH cannot be explained by rowing specific performance levels in experienced rowers. However, the sample may lack sufficient heterogeneity in performance levels to draw final conclusions.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139106997","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
Malnutrition care in hospitalized pediatric inpatients: comparison of perceptions and experiences across two pediatric academic health sciences centres. 儿科住院病人的营养不良护理:两个儿科学术健康科学中心的看法和经验比较。
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2024-05-01 Epub Date: 2024-01-30 DOI: 10.1139/apnm-2023-0189
Jessie M Hulst, Anna de Lange, Kristen DaSilva, Jillian Owens, Louise Bannister, Jordan Beaulieu, Fariha Chowdhury, Bonnie Fleming-Carroll, Beth Haliburton, Daina Kalnins, Sanjay Mahant, Sarah McEwan, Adelina Morra, Lisa Talone, Nikhil Pai
{"title":"Malnutrition care in hospitalized pediatric inpatients: comparison of perceptions and experiences across two pediatric academic health sciences centres.","authors":"Jessie M Hulst, Anna de Lange, Kristen DaSilva, Jillian Owens, Louise Bannister, Jordan Beaulieu, Fariha Chowdhury, Bonnie Fleming-Carroll, Beth Haliburton, Daina Kalnins, Sanjay Mahant, Sarah McEwan, Adelina Morra, Lisa Talone, Nikhil Pai","doi":"10.1139/apnm-2023-0189","DOIUrl":"10.1139/apnm-2023-0189","url":null,"abstract":"<p><p>Malnutrition affects up to one in three Canadian children admitted to hospital. Awareness among pediatric healthcare providers (HCPs) of the prevalence and impacts of hospitalized malnutrition is critical for optimal management. The purpose of this study was to determine perceptions of malnutrition among pediatric HCP across two major academic health sciences centres, and to determine how the use of a standardized pediatric nutritional screening tool at one institution affects responses. Between 2020 and 2022, 192 HCPs representing nursing, dietetics, medicine, and other allied health were surveyed across McMaster Children's Hospital and The Hospital for Sick Children. 38% of respondents from both centres perceived rates of malnutrition between approximately one in three patients. Perceptions of the need for nutritional screening, assessment, and management were similar between centres. All respondents identified the need for better communication of hospitalized malnutrition status to community providers at discharge, and resource limitations affecting nutritional management of pediatric inpatients. This study represents the largest and most diverse survey of inpatient pediatric HCPs to date. We demonstrate high rates of baseline knowledge of hospital malnutrition, ongoing resource challenges, and the need for a systematic approach to pediatric nutritional management.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139643591","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
Addressing disease-related malnutrition across healthcare settings: recent advancements and areas of opportunity. 在各种医疗机构解决与疾病相关的营养不良问题:最新进展和机遇领域。
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2024-05-01 Epub Date: 2024-04-01 DOI: 10.1139/apnm-2024-0080
Katherine L Ford, Heather H Keller, Leah Gramlich
{"title":"Addressing disease-related malnutrition across healthcare settings: recent advancements and areas of opportunity.","authors":"Katherine L Ford, Heather H Keller, Leah Gramlich","doi":"10.1139/apnm-2024-0080","DOIUrl":"10.1139/apnm-2024-0080","url":null,"abstract":"","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140337974","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
Repeated short cold-water immersions are sufficient to habituate to the cold, but do not lead to adaptations during exercise in normobaric hypoxia. 反复短时间的冷水浸泡足以使人适应寒冷,但并不能导致在常压缺氧条件下进行运动时产生适应性。
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2024-05-01 Epub Date: 2024-02-01 DOI: 10.1139/apnm-2023-0523
Geoffrey Dorsett, Felipe Gorini Pereira, Matthew Kuennen, Kyren Waugh, Jackson Barnard, Jonluke Bennett, Gabriel Garcia, Trevor Gillum
{"title":"Repeated short cold-water immersions are sufficient to habituate to the cold, but do not lead to adaptations during exercise in normobaric hypoxia.","authors":"Geoffrey Dorsett, Felipe Gorini Pereira, Matthew Kuennen, Kyren Waugh, Jackson Barnard, Jonluke Bennett, Gabriel Garcia, Trevor Gillum","doi":"10.1139/apnm-2023-0523","DOIUrl":"10.1139/apnm-2023-0523","url":null,"abstract":"<p><p>We sought to assess the effects of repeated cold-water immersions (CWI) on respiratory, metabolic, and sympathoadrenal responses to graded exercise in hypoxia. Sixteen (2 female) participants (age: 21.2 ±   1.3 years; body fat: 12.3 ± 7.7%; body surface area 1.87 ± 0.16 m<sup>2</sup>, VO<sub>2peak</sub>: 48.7 ± 7.9 mL/kg/min) underwent 6 CWI in 12.0 ± 1.2 °C. Each CWI was 5 min, twice daily, separated by ≥4 h, for three consecutive days, during which metabolic data were collected. The day before and after the repeated CWI intervention, participants ran in normobaric hypoxia (F<sub>I</sub>O<sub>2</sub> = 0.135) for 4 min at 25%, 40%, 60%, and 75% of their sea level peak oxygen consumption (VO<sub>2peak</sub>). CWI had no effect on VO<sub>2</sub> (<i>p</i> > 0.05), but reduced the <i>V</i><sub>E</sub> (CWI #1: 27.1 ± 17.8 versus CWI #6: 19.9 ± 12.1 L/min) (<i>p</i> < 0.01), <i>V</i><sub>T</sub> (CWI #1: 1.3 ± 0.4 vs CWI #6: 1.1 ± 0.4 L) (<i>p</i> < 0.01), and <i>V</i><sub>E</sub>:VO<sub>2</sub> (CWI #1: 53.5 ± 24.1 vs CWI #6: 41.6 ± 20.5) (<i>p</i> < 0.01) during subsequent CWI. Further, post exercise plasma epinephrine was lower after CWI compared to before (103.3 ± 43.1; 73.4 ± 34.6 pg/mL) (<i>p</i> = 0.03), with no change in pre-exercising values (75.4 ± 30.7; 72.5 ± 25.9 pg/mL). While these changes were noteworthy, it is important to acknowledge there were no changes in pulmonary (<i>V</i><sub>E</sub>, <i>V</i><sub>T</sub>, and <i>V</i><sub>E</sub>:VO<sub>2</sub>) or metabolic (VO<sub>2</sub>, SmO<sub>2</sub>, and SpO<sub>2</sub>) variables across multiple hypoxic exercise workloads following repeated CWI. CWI habituated participants to cold water, but this did not lead to adaptations during exercise in normobaric hypoxia.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139673821","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 effect of pre-exercise oral hyperhydration on endurance exercise performance, heart rate, and thermoregulation: a meta-analytical review. 运动前口服多水对耐力运动表现、心率和体温调节的影响:荟萃分析综述。
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2024-05-01 Epub Date: 2024-01-10 DOI: 10.1139/apnm-2023-0384
Alan J McCubbin, Christopher Irwin
{"title":"The effect of pre-exercise oral hyperhydration on endurance exercise performance, heart rate, and thermoregulation: a meta-analytical review.","authors":"Alan J McCubbin, Christopher Irwin","doi":"10.1139/apnm-2023-0384","DOIUrl":"10.1139/apnm-2023-0384","url":null,"abstract":"<p><p>This study aimed to determine the effect of pre-exercise hyperhydration on endurance performance (primary outcome), heart rate, thermoregulation, and perceptual responses (secondary outcomes). Six academic databases were searched to February 2023. Only studies reporting differences in hydration between intervention and placebo/control were included. Meta-analysis determined overall effect size (Hedges' <i>g</i>), and meta-regression the influence of independent moderators (ambient temperature, hyperhydration agent, exercise mode, extent of hyperhydration). Overall, 10 publications generating 19 effect estimates for primary outcomes, and 11 publications reporting 48 effect estimates for secondary outcomes, were included. A small-to-moderate improvement in time-to-exhaustion (TTE) (Hedges' <i>g</i> = 0.31, 95% CI: 0.13-0.50, <i>p</i> = 0.001) and time trial (TT) (<i>g</i> = 0.25, 95% CI: 0.002-0.51, <i>p</i> = 0.049) but not total work (TW) tasks (<i>p</i> = 0.120) was found following hyperhydration. No moderating effects were observed. No effect of hyperhydration was found for heart rate following steady state (SS) exercise (<i>p</i> = 0.069) or the performance task (<i>p</i> = 0.072), nor for body temperature post-SS (<i>p</i> = 0.132) or post-performance task (<i>p</i> = 0.349), but meta-regression of sodium versus glycerol showed lower body temperature post-performance task with sodium (<i>g</i> = 0.80, <i>t</i> (5) = 2.65, <i>p</i> = 0.046). No effects were found for perceived exertion or thermal comfort. Study heterogeneity was low, lacking representation of elite and female athletes, and weight-bearing (i.e., running) exercise modalities. These results suggest pre-exercise hyperhydration provides a small-to-moderate benefit to endurance performance in TTE and TT, but not TW performance tasks. While no moderating effects were observed, lack of heterogeneity makes it difficult to generalise these findings.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139418729","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 scoping review of Indigenous community-specific physical activity measures developed with and for Indigenous Peoples in Canada, Australia, and New Zealand. 加拿大、澳大利亚和新西兰与土著人民共同制定并为土著人民制定的土著社区特定体育活动措施的范围审查。
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2024-05-01 Epub Date: 2024-02-06 DOI: 10.1139/apnm-2023-0380
Shara R Johnson, Phil Chilibeck, Sarah N Oosman, Heather J A Foulds
{"title":"A scoping review of Indigenous community-specific physical activity measures developed with and for Indigenous Peoples in Canada, Australia, and New Zealand.","authors":"Shara R Johnson, Phil Chilibeck, Sarah N Oosman, Heather J A Foulds","doi":"10.1139/apnm-2023-0380","DOIUrl":"10.1139/apnm-2023-0380","url":null,"abstract":"<p><p>Historical factors including colonization and ongoing socioeconomic inequities impact Indigenous Peoples' ability to mitigate chronic disease risks such as achieving recommended physical activity (PA) levels. Reliably assessing, reflecting, and promoting PA participation among Indigenous Peoples may be impacted by a lack of culturally appropriate assessment methods and meaningful engagement with Indigenous communities throughout the research process. The objectives of this scoping review were to examine: (1) How PA research with Indigenous Peoples used community-specific PA measures developed with and/or for Indigenous Peoples in Canada, Australia, and New Zealand; and (2) How the studies utilized community-based participatory research (CBPR) principles to engage communities. A systematic search was conducted in four electronic databases (Web of Science, Medline, University of Saskatchewan Indigenous Portal, and ProQuest Dissertations and Theses Global). Thirty-one (<i>n</i> = 31) articles were identified and data extracted for narrative synthesis. Studies using community-specific PA measures have been increasing over time. Adapting questionnaires to traditional Indigenous activities such as cultural dances, ceremonies, and food-gathering activities were the most frequent adjustments undertaken to use community-specific measures. There are, however, gaps in research partnering with communities with only 6% of studies including all eight CBPR principles. Practical ways researchers can engage Indigenous communities and build capacity such as training and employing community members were highlighted. More needs to be done to facilitate community self-determination and develop long-term sustainable initiatives. Using culturally appropriate and relevant methodologies including partnering with Indigenous communities may help identification and implementation of culturally relevant and sustainable health-promoting initiatives.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139699071","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
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