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

Evaluation of an online Cardiometabolic and Weight Loss Program. A mixed methods study.

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-24 DOI: 10.1139/apnm-2024-0190

Dianna A Dandeneau, Silvia J Leon, Margherita Cameranesi, Mackenzie R Alexiuk, Jennifer Lp Protudjer, Clara J Bohm, Michelle S J Di Nella, Carrie K Solmundson, Melanie Talson, Haizhou Wang, Reid H Whitlock, Claudio Rigatto, Rebecca Mollard

{"title":"Evaluation of an online Cardiometabolic and Weight Loss Program. A mixed methods study.","authors":"Dianna A Dandeneau, Silvia J Leon, Margherita Cameranesi, Mackenzie R Alexiuk, Jennifer Lp Protudjer, Clara J Bohm, Michelle S J Di Nella, Carrie K Solmundson, Melanie Talson, Haizhou Wang, Reid H Whitlock, Claudio Rigatto, Rebecca Mollard","doi":"10.1139/apnm-2024-0190","DOIUrl":"https://doi.org/10.1139/apnm-2024-0190","url":null,"abstract":"Risk factors contributing to cardiovascular diseases (CVD) can be addressed through behavior modification, including changes in diet and physical activity. In 2021, The Wellness Institute (WI), located at Seven Oaks General Hospital, created a virtual cardiometabolic risk reduction program in response to COVID-19 pandemic public health restrictions, encompassing virtual health coaching and lifestyle education. The objective was to evaluate the acceptability, adherence, efficacy and engagement of the WI online cardiometabolic and weight loss program. The study followed a mixed methods quasi-experimental design. A total of 93 participants enrolled. Quantitative measures including anthropometrics, blood chemistry, and lifestyle were assessed for changes via paired t-tests at baseline and 16 weeks. Qualitatively, short answer questionnaires and three focus groups were completed to understand participants' experiences and program acceptability. We combined qualitative and quantitative data for analysis. Seventy-three participants (64 female, 87.7%) completed the final study visit (age 58 ± 11 years, weight 98 ± 20.9 kg). Of those, 98% attended all coaching sessions, would recommend the program, and reported the coaching sessions helped them stay motivated. A reduction in weight (5 ± 9 kg, p<0.001), systolic blood pressure (6 ± 10 mmHg, p<0.001) and diastolic blood pressure (4 ± 8 mmHg, p<0.001) were observed. Lifestyle factors also improved, including increases in physical activity (p<0.05). Most participants adhered to the program and found it acceptable. Completion was associated with an improvement in weight and blood pressure. These findings highlight the potential of virtual programming to contribute to improving lifestyle and health. Clinicaltrials.gov (ID# NCT04784624CT).","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143034896","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

Development and Evaluation of a Food Choices Assessment Score (FCAS) Measuring the Healthfulness of Dietary Choices According to 2019 Canada's Food Guide/Canada's Dietary Guidelines, using the Canadian Health Measures Survey Food Frequency Questionnaire. 根据2019年加拿大食品指南/加拿大膳食指南，使用加拿大健康措施调查食物频率问卷，制定和评估食品选择评估分数（FCAS）衡量饮食选择的健康性。

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-17 DOI: 10.1139/apnm-2024-0305

Samer Hamamji, Mavra Ahmed, Daniel Zaltz, Mary R L'Abbé

{"title":"Development and Evaluation of a Food Choices Assessment Score (FCAS) Measuring the Healthfulness of Dietary Choices According to 2019 Canada's Food Guide/Canada's Dietary Guidelines, using the Canadian Health Measures Survey Food Frequency Questionnaire.","authors":"Samer Hamamji, Mavra Ahmed, Daniel Zaltz, Mary R L'Abbé","doi":"10.1139/apnm-2024-0305","DOIUrl":"https://doi.org/10.1139/apnm-2024-0305","url":null,"abstract":"The objective of this study was to develop and evaluate a Food Choices Assessment Score (FCAS) measuring alignment with 2019 Canada's Food Guide (CFG) and Canada's Dietary Guidelines (CDG) using a non-quantitative food frequency questionnaire (FFQ) data. Cross-sectional data from the Canadian Health Measures Survey (CHMS) (2016 to 2019), including 6,459 participants (≥19 years) and a non-quantitative FFQ (~100 food items) were used. Content and construct validity and assessing reliability were used to evaluate the FCAS, including a comparison of mean FCAS among Canadian subgroups, calculating the FCAS for high quality diet menus, investigating the consistency of the FCAS with the Dietary Approaches to Stop Hypertension (DASH), as a healthy diet linked with lower cardiometabolic risks, and estimating Cronbach's alpha for reliability. The FCAS consisted of nine components for a total of 80 points. The FCAS captured the key recommendations of the 2019 CFG/CDG. Mean (SE) FCAS of the adult Canadian population was 29.3 (0.4) (/80) and was higher in females 32.2 (0.4) and non-smokers 30.3 (0.3) compared to males 26.7 (0.4) and smokers 23.6 (0.9), respectively (p<0.0001). FCAS yielded high scores for healthy menu samples of CDG (80/80) and DASH (70/80) diets. FCAS was correlated with DASH diet score (r=0.83). Cronbach's alpha was found to be moderate (0.5), as expected, which confirmed the multidimensionality of the FCAS components in reflecting different characteristics of diet quality. These analyses suggest adequate validity with multidimensional consistency of the 2019 CFG/CDG FCAS as a new tool for use with non-quantitative FFQ data.","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143018051","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

Passive Heat Therapy for Cardiovascular Disease: Current Evidence and Future Directions. 被动热治疗心血管疾病：目前的证据和未来的方向。

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-16 DOI: 10.1139/apnm-2024-0406

Saniya Rodrigues, Fergus O'Connor, N Morris, Georgia Chaseling, Surendran Sabapathy, Aaron Bach

{"title":"Passive Heat Therapy for Cardiovascular Disease: Current Evidence and Future Directions.","authors":"Saniya Rodrigues, Fergus O'Connor, N Morris, Georgia Chaseling, Surendran Sabapathy, Aaron Bach","doi":"10.1139/apnm-2024-0406","DOIUrl":"https://doi.org/10.1139/apnm-2024-0406","url":null,"abstract":"Passive heat therapy is gaining popularity as an intervention to promote cardiovascular, physiological, and to a lesser degree, thermoregulatory, adaptations in patients with cardiovascular disease. Despite this, the efficacy of heat therapy to elicit these adaptations remains unknown. We searched 5 databases for original research, screening 2,913 studies and identifying 18 eligible studies. Heat therapies included Waon therapy, balneotherapy, water perfused trousers, Finnish sauna, and foot immersion. Interventions were administered across various time frames (20- to 90-min) and performed 3 to 7 times per week, for durations of 2- to 8-weeks. The studies collectively involved a diverse population (mean age: 67 (10) years) with cardiovascular diseases. Heat therapy was consistently shown to improve ejection fraction, flow-mediated dilation, brain natriuretic peptide levels, New York Heart Association classification, and six-minute walk distance. However, positive effects on resting heart rate and blood pressure were infrequently observed, and thermoregulatory responses scarcely reported. Heat therapy may increase sweat rate during heat exposure and reduce resting core temperature, but adaptive skin blood flow responses were not observed. Passive heat therapy shows promising utility in patients with cardiovascular disease, while secondary benefits such as markers of thermoregulatory adaptation may also be observed, these require further investigation.","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143018113","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

Characterization of Individuals Achieving Type 2 Diabetes Remission in Real-World Settings: Bridging Clinical Evidence and Patient Experiences. 在现实世界中实现2型糖尿病缓解的个体特征：连接临床证据和患者经验。

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-14 DOI: 10.1139/apnm-2024-0316

Alexis Marcotte-Chénard, Barbara Oliveira, Tahmina Rahman, Sean McKelvey, Tom Elliott, Paula Rocha, Dylan S MacKay, Jonathan P Little

{"title":"Characterization of Individuals Achieving Type 2 Diabetes Remission in Real-World Settings: Bridging Clinical Evidence and Patient Experiences.","authors":"Alexis Marcotte-Chénard, Barbara Oliveira, Tahmina Rahman, Sean McKelvey, Tom Elliott, Paula Rocha, Dylan S MacKay, Jonathan P Little","doi":"10.1139/apnm-2024-0316","DOIUrl":"https://doi.org/10.1139/apnm-2024-0316","url":null,"abstract":"The objectives of the study were to: 1) Describe characteristics and lifestyle factors of individuals who have achieved type 2 diabetes (T2D) remission (sub-diabetes glucose levels without glucose-lowering medications for ≥3 months) through changes to diet and exercise behaviour in real-world settings; 2) Investigate continuous glucose monitoring (CGM) profiles of these individuals and explore how dietary pattern may influence glucose regulation metrics. This cross-sectional study recruited individuals living with T2D who achieved remission via changes to diet or exercise behaviours. Various questionnaires were used to assess overall health and participants wore a blinded CGM for 14 days to assess glucose profiles and filled out three-day food records. A total of 21 adults (57 ± 8 years of age) who were recently diagnosed with T2D (4±3 years) with a A1c of 5.7±0.4% volunteered to participate. Participants achieved remission through various means (e.g., combination of diet and exercise/physical activity) and self-reported following different diets, including 52% following a low-carbohydrate or very low-carbohydrate diet, 14% following a \"ketovore/carnivore\" diet, 10% using a meal replacement diet, 5% following Weight Watcher's diet, and 19% no defined dietary pattern. The 24-hour average CGM glucose value was 5.0 [4.8-5.6] mmol/L (median [IQR]) with 92 [85-97]% of time spent in range (between 4.0-9.9 mmol/). 24-hour average CGM glucose (r=0.692; P=0.001), as well as A1c (r=0.470; P=0.049), were correlated with the daily percentage of energy intake from carbohydrate. Remission of T2D appears achievable through various means, including adoption of different dietary approaches and a more active lifestyle underpinning the importance of a patient-centred care.","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142985829","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

Muscle Cell Palmitate-Induced Insulin Resistance, JNK, IKK/NF-κB and STAT3 Activation are Attenuated by Carnosic and Rosmarinic Acid. 鼠尾草和迷迭香酸可降低肌肉细胞棕榈酸诱导的胰岛素抵抗、JNK、IKK/NF-κB和STAT3的激活。

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-13 DOI: 10.1139/apnm-2024-0302

Danja Den Hartogh, Rebecca E K MacPherson, Evangelia Tsiani

{"title":"Muscle Cell Palmitate-Induced Insulin Resistance, JNK, IKK/NF-κB and STAT3 Activation are Attenuated by Carnosic and Rosmarinic Acid.","authors":"Danja Den Hartogh, Rebecca E K MacPherson, Evangelia Tsiani","doi":"10.1139/apnm-2024-0302","DOIUrl":"https://doi.org/10.1139/apnm-2024-0302","url":null,"abstract":"The worldwide epidemic of obesity has drastically worsened with the increase in more sedentary lifestyles and increased consumption of fatty foods. Increased blood free fatty acids (FFAs), often observed in obesity, leads to impaired insulin action, and promotes the development of insulin resistance and Type 2 diabetes mellitus (T2DM). JNK, IKK-NF-κB, and STAT3 are known to be involved in skeletal muscle insulin resistance. We reported previously that carnosic acid (CA) and rosmarinic acid (RA), attenuated the palmitate-induced skeletal muscle insulin resistance, an effect that was associated with increased AMPK activation and reduced mTOR-p70S6K signaling. In the present study, we examined the effects of CA and RA on JNK, IKK-NF-κB, and STAT3. Exposure of cells to palmitate increased the phosphorylation/activation of JNK, IKKα/β, IκBα, NF-κBp65, and STAT3. Importantly, CA and RA attenuated the deleterious effects of palmitate. Our data indicate that CA and RA have the potential to counteract the palmitate-induced skeletal muscle cell insulin resistance by modulating JNK, IKK-NF-κB, and STAT3 signaling.","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142981000","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

Passive heating in sport: Context specific benefits, detriments, and considerations. 运动中的被动加热：特定环境的好处、坏处和注意事项。

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-13 DOI: 10.1139/apnm-2024-0381

Campbell Menzies, Neil D Clarke, Chris Pugh, Charles J Steward, Charles D Thake, Tom Cullen

{"title":"Passive heating in sport: Context specific benefits, detriments, and considerations.","authors":"Campbell Menzies, Neil D Clarke, Chris Pugh, Charles J Steward, Charles D Thake, Tom Cullen","doi":"10.1139/apnm-2024-0381","DOIUrl":"https://doi.org/10.1139/apnm-2024-0381","url":null,"abstract":"Exercise and passive heating share some acute physiological responses. These include increases in body temperature, sweat rate, blood flow, heart rate, and redistribution of plasma and blood volume. These responses can vary depending on the heating modality or dose (e.g. temperature, duration, body coverage) and are beneficial to athletes in specific scenarios. These scenarios include being applied to increase muscle or force production, induce rapid weight loss, stimulate thermoregulatory or cardiovascular adaptation, or to accelerate recovery. The rationale being to tailor the specific passive heating protocol to target the desired physiological response. However, some acute responses to passive heating may also be detrimental to sporting outcomes, such as exercising in the heat, having unintended residual negative effects on performance or perceptions of fatigue, or even resulting in hospitalization if implemented inappropriately. Accordingly, the effects of passive heating should be carefully considered prior to implementation by athletes, coaches, and support staff. Therefore, the purpose of this review is to evaluate the physiological responses to different modes and doses of passive heating and explore the various sport contexts where these effects may either benefit or hinder athletes. Understanding these responses can aid the implementation of passive heating in sport and identify potential recommended heating protocols in each given scenario.","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142981001","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 Association of SLC16A1 (MCT1) Gene Polymorphism with Body Composition Changes during Weight Loss Interventions: A Randomized Trial with Sex-Dependent Analysis. SLC16A1 （MCT1）基因多态性与减肥干预期间体成分变化的关联：一项性别依赖分析的随机试验

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-09 DOI: 10.1139/apnm-2024-0246

Rocío Cupeiro, Pedro J Benito, Teresa Amigo, Domingo González-Lamuño

{"title":"The Association of SLC16A1 (MCT1) Gene Polymorphism with Body Composition Changes during Weight Loss Interventions: A Randomized Trial with Sex-Dependent Analysis.","authors":"Rocío Cupeiro, Pedro J Benito, Teresa Amigo, Domingo González-Lamuño","doi":"10.1139/apnm-2024-0246","DOIUrl":"https://doi.org/10.1139/apnm-2024-0246","url":null,"abstract":"Monocarboxylates, transported by monocarboxylate transporters (MCTs), have been proposed to influence energy homeostasis and exhibit altered metabolism during exercise. This study investigated the association between the Asp490Glu (T1470A) (rs1049434) polymorphism of the SLC16A1 (MCT1) gene and changes in body composition in males and females with overweight or obesity. The 173 participants (56.6% females) completed a 6-month randomized controlled trial, being assigned to the Supervised exercise group (strength, endurance, or strength plus endurance training) or the Physical Activity (PA) Recommendations group. Participants were genotypically categorized as Asp/Asp (TT), Asp/Glu (TA), or Glu/Glu (AA). ANCOVA analysis showed main effects for genotype and interaction genotype x group (p<0.05) for several variables, especially in females. Asp/Asp (TT) females showed greater reductions in total fat mass (-29.30±8.75% change), percentage of body fat (-17.50±8.06% change), and body weight (-13.90±2.62% change) compared with Glu/Glu (AA) (p≤0.020; d≥0.18) and Asp/Glu (TA) (p≤0.050; d≥0.16) females, but only within the PA Recommendations group. Data indicated higher decreases in lean body mass of the Asp/Asp (TT) compared to Glu/Glu (AA) in females (p=0.067, η2p=0.067) and to Asp/Glu (TA) in males (p=0.026; η2p=0.101). Our investigation suggests an association of the SNP with body composition changes especially in females following exercise recommendations, highlighting the importance of supervised training to offset genetic predisposition for different weight loss. Differences in males only appeared for lean body mass, suggesting sex differences for this genetic association. The study underscores the potential influence of MCT1 functionality on human adaptations to weight loss interventions. ClinicalTrials.gov registration number, NCT01116856.","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960227","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

Exploring Canadian Dietitians' Knowledge Attitude and Practices Providing Culturally Safe Care to Muslims who fast During the Month of Ramadan: A Cross-sectional Study. 探索加拿大营养师的知识，态度和做法提供文化安全护理穆斯林斋月期间斋戒：一项横断面研究。

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-09 DOI: 10.1139/apnm-2024-0392

Katherine Aw Hillier, Hassan Vatanparast, Ginny Lane

{"title":"Exploring Canadian Dietitians' Knowledge Attitude and Practices Providing Culturally Safe Care to Muslims who fast During the Month of Ramadan: A Cross-sectional Study.","authors":"Katherine Aw Hillier, Hassan Vatanparast, Ginny Lane","doi":"10.1139/apnm-2024-0392","DOIUrl":"https://doi.org/10.1139/apnm-2024-0392","url":null,"abstract":"Fasting during Ramadan involves abstaining from food and drink from dawn to dusk for 29 to 30 days, annually. Dietitians, experts in food and nutrition, play a vital role in fostering the well-being of Canadians. Given that 1 in 20 Canadians are Muslim, access to culturally safe care is essential for their health. The consumption of adequate nutrients during the non-fasting hours is important for Muslims well-being. It is unknown whether dietitians in Canada feel comfortable and knowledgeable providing safe care during Ramadan. An online survey, was developed using the World Health Organization's Knowledge Attitude and Practice Protocol, and then reviewed for content validity by 6 dietitians. From March 5, 2023 to April 1, 2023, 159 Canadian dietitians, from a variety of practice areas including acute care, community health, and private practice, completed the online survey. Descriptive statistics, cross tabulations, and chi-square tests, enhanced by post hoc analyses with Bonferroni correction, were employed to determine any relationship between categorical variables and identify significant associations or differences. While most participants demonstrated an adequate understanding of Ramadan fasting practices, including its duration and restrictions, 91% reported not receiving information on how to provide culturally safe care during their university degree. Many dietitians expressed discomfort providing care (43.7%, 69/158) and lacked adequate resources (51.3%, 81/158). Among the 37% of dietitians who did offer care to Muslims (58/157), the majority felt comfortable (72.1%, 44/58). This study reveals a gap in capacity to provide culturally safe care, highlighting the need for training interventions for nutrition professionals, and curriculum for dietetics programs.","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960211","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

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-08 DOI: 10.1139/apnm-2024-0202

Michael J Marsala, Alicia M Kells, Anita Christie

{"title":"Sex-Related Differences in Motor Unit Firing Rate and Pennation Angle.","authors":"Michael J Marsala, Alicia M Kells, Anita Christie","doi":"10.1139/apnm-2024-0202","DOIUrl":"https://doi.org/10.1139/apnm-2024-0202","url":null,"abstract":"Motor unit firing rate (MUFR) and pennation angle were measured concurrently in males and females from submaximal to maximal intensities. Thirty participants, (16F and 14M) performed isometric dorsiflexion contractions at 20%, 40%, 60%, 80% and 100% of maximal voluntary contraction (MVC). During each contraction, measures of MUFR were obtained via surface electromyography decomposition, and muscle fiber pennation angle and fascicle length were obtained via ultrasound. There was no significant interaction effect of sex and contraction intensity present for mean MUFR (p=0.24), pennation angle (p=0.98), or fascicle length (p=0.81). Males had greater mean MUFR (p<0.001), pennation angle (p=0.02), and fascicle length (p=0.03) compared to females. In general, mean MUFR (p<0.001) and pennation angle (p<0.02), increased with increasing contraction intensity, however, fascicle length (p=0.30) was similar across contraction intensities. There were no significant relationships between mean MUFR and pennation angle for males (r=0.18, p=0.13) or females (r=0.20, p=0.09), nor between mean MUFR and fascicle length for males (r=0.20, p=0.10) or females (r=0.21, p=0.07). Although sex-related differences in MUFR, pennation angle and fascicle length were present, there were no relationships between MUFR and the muscle properties. These results suggest that sex-related differences in mean MUFR may not be associated with the sex-related differences in the muscle architectural properties currently investigated.","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960224","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

What do Canadian universities suggest on their webpages as future career and educational pathways following completion of a kinesiology or exercise science undergraduate program? 在完成运动机能学或运动科学本科课程后，加拿大大学在其网页上建议未来的职业和教育途径是什么？

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-08 DOI: 10.1139/apnm-2024-0248

Taniya S Nagpal, Hanna Randhawa, Rebecca Pallister, Jonathon R Fowles, Myles W O'Brien

引用次数: 0