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

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Nutrient intakes of Canadian children and adolescents at school by meal occasion and location of food preparation. 加拿大儿童和青少年在学校按用餐场合和食物准备地点的营养摄入量。
Emily R Ziraldo, Mavra Ahmed, Christine Mulligan, Daniel W Sellen, Mary R L'Abbé
{"title":"Nutrient intakes of Canadian children and adolescents at school by meal occasion and location of food preparation.","authors":"Emily R Ziraldo, Mavra Ahmed, Christine Mulligan, Daniel W Sellen, Mary R L'Abbé","doi":"10.1139/apnm-2024-0027","DOIUrl":"10.1139/apnm-2024-0027","url":null,"abstract":"<p><p>Canadian children consume a significant proportion of daily foods at school, do not benefit from any federal school food program, and have historically inadequate diets. Assessment of dietary intakes at school can inform policy discussions for the design, funding, and delivery of school-based nutrition interventions. The objectives were to examine the most recent nationally representative dietary intake data of Canadian children at school by (i) location of food preparation, (ii) meal occasion, and (iii) as a proportion of total daily intakes. Intake data from the first day 24 h dietary recalls of the 2015 Canadian Community Health Survey-Nutrition were examined for children 4-18 years old (<i>n</i> = 1690). Intakes were reported by location of food preparation and meal occasion and were expressed as means and as a proportion of daily intake. At school, 98.6% of children consumed foods that did not require preparation, while 37.1% consumed foods prepared at home. Lunch and snacks were the meal occasions consumed most often at school, by 85.5% and 66.1% of children. Children consumed 32.6% of their daily energy intake and between 28.4% and 35.6% of daily nutrient intakes at school. School-based nutrition interventions for frequently consumed meal occasions, such as snack or lunch programs, that include foods lower in added sugar and sodium and higher in calcium, fibre, and iron may improve the health of Canadian children.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":"50 ","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061752","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 effects of acute hot-water immersion on force steadiness and motor unit discharge rate variability in young, healthy adults. 急性热水浸泡对年轻健康成人力稳定性和运动单元放电率变异性的影响。
Patrick Rodrigues, Lucas B R Orssatto, Gabriel S Trajano, Lee Wharton, Geoffrey M Minett
{"title":"The effects of acute hot-water immersion on force steadiness and motor unit discharge rate variability in young, healthy adults.","authors":"Patrick Rodrigues, Lucas B R Orssatto, Gabriel S Trajano, Lee Wharton, Geoffrey M Minett","doi":"10.1139/apnm-2024-0330","DOIUrl":"10.1139/apnm-2024-0330","url":null,"abstract":"<p><p>This study examined the effects of core and muscle temperature on force steadiness and motor unit discharge rate (MUDR) variability after a hot-water immersion session. Fifteen participants (6 women; 25 ± 6 years) completed neuromuscular assessments before and after either 42 °C (hot) or 36 °C (control) water immersion. Force steadiness was measured during knee extension, while HD-sEMG signals were recorded from <i>vastus lateralis</i> and <i>medialis</i> for MUDR variability analysis. Following water immersion, force steadiness decreased by 0.11% (<i>p</i> < 0.05; <i>d</i> = 0.38) and MUDR variability increased by 1.25% (<i>p</i> < 0.01; <i>d</i> = 0.57) potentially driven by increased muscle temperature. Elevated core temperature did not further affected these changes.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":"50 ","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143384347","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?
Taniya S Nagpal, Hanna Randhawa, Rebecca Pallister, Jonathon R Fowles, Myles W O'Brien
{"title":"What do Canadian universities suggest on their webpages as future career and educational pathways following completion of a kinesiology or exercise science undergraduate program?","authors":"Taniya S Nagpal, Hanna Randhawa, Rebecca Pallister, Jonathon R Fowles, Myles W O'Brien","doi":"10.1139/apnm-2024-0248","DOIUrl":"10.1139/apnm-2024-0248","url":null,"abstract":"<p><p>Kinesiology undergraduate programs are multidisciplinary, and graduates may navigate several post-graduate education and career pathways. This study summarized the pathways currently listed online by Canadian undergraduate programs following completion of a kinesiology or \"exercise science\" degree. An environmental scan was completed by reviewing Canadian undergraduate program (<i>n</i> = 59) webpages and their list of future pathways (<i>n</i> = 845). A content analysis summarized pathways into 46 common categories. The most mentioned pathway was education (<i>n</i> = 60), with coaching, health promotion and physiotherapy next (<i>n</i> = 46-48). Additional pathways included medical, allied health professions, business, and exercise training (<i>n</i> = 24-44). Most listed pathways likely require further training post-graduation.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960228","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
Relationship of irisin and apelin levels with sarcopenia and body composition in community-dwelling older adults: a paired case-control study. 鸢尾素和尖蛋白水平与社区老年人肌肉减少症和身体组成的关系:一项成对病例对照研究。
Liangchuan Zhang, Yating Peng, Yaling Qie, Jia Guo, Yuan Kong, Xue Zhang, Zetian Li, Hong Jia
{"title":"Relationship of irisin and apelin levels with sarcopenia and body composition in community-dwelling older adults: a paired case-control study.","authors":"Liangchuan Zhang, Yating Peng, Yaling Qie, Jia Guo, Yuan Kong, Xue Zhang, Zetian Li, Hong Jia","doi":"10.1139/apnm-2024-0473","DOIUrl":"10.1139/apnm-2024-0473","url":null,"abstract":"<p><p>Irisin and apelin levels continue to decrease with age, and although many previous studies have explored their association with sarcopenia and body composition, there is still a paucity of evidence relating to them in community-dwelling elderly populations. The aim of this study was to provide new evidence for the association of irisin and apelin with sarcopenia in older adults. This case-control study included 80 individuals with sarcopenia and 80 individuals without sarcopenia. The definition of sarcopenia was based on the Asian Working Group for Sarcopenia 2019 criteria. Plasma levels of irisin and apelin were measured using an enzyme-linked immunosorbent assay. Conditional logistic regression analysis was performed to estimate odds ratios (ORs) and 95% CIs. The sarcopenia group exhibited significantly lower levels of irisin (73.75 ± 30.97 ng/mL vs. 131.15 ± 88.38 ng/mL, <i>p</i> < 0.001) and apelin (21.51 ± 14.89 ng/mL vs. 27.87 ± 14.41 ng/mL, <i>p</i> = 0.007) compared to the control group. Increased levels of irisin (OR, 0.98, 95% CI, 0.97-0.99) and apelin (OR, 0.97, 95% CI, 0.95-0.99) were associated with a decreased risk of sarcopenia. In women, irisin was positively associated with body mass index, intracellular water (ICW), extracellular water (ECW), total water (TW), protein, mineral, fat, fat-free mass, skeletal muscle mass (SMM), percentage body fat, waist circumference, visceral fat area, and basal metabolic rate. Apelin was positively associated with ICW, ECW, TW, protein, and SMM (all <i>p</i> < 0.05). In men, positive correlations were found between irisin, apelin, and handgrip strength (all <i>p</i> < 0.05). Receiver operating characteristic analysis showed that irisin and apelin had moderate predictive power in identifying sarcopenia. Plasma irisin and apelin were lower than in controls in elderly patients with sarcopenia, and elevated levels of irisin and apelin were associated with a reduced risk of sarcopenia. In addition, irisin and apelin levels are associated with body composition and irisin showed a stronger ability to predict sarcopenia in women.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143416587","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 contexts for using digital food retail services in Canada: a qualitative study. 探索在加拿大使用数字食品零售服务的背景:定性研究。
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-01 Epub Date: 2024-09-19 DOI: 10.1139/apnm-2024-0173
Melissa A Fernandez, Jessica Dugan, Kim D Raine
{"title":"Exploring contexts for using digital food retail services in Canada: a qualitative study.","authors":"Melissa A Fernandez, Jessica Dugan, Kim D Raine","doi":"10.1139/apnm-2024-0173","DOIUrl":"10.1139/apnm-2024-0173","url":null,"abstract":"<p><p>This study aimed to understand contexts for buying food online with food delivery apps, meal kits, and online grocers in Canada. A total of 34 participants (24% identified as men) between the ages of 16 and 60 were interviewed over the phone. The participants were recruited through personal and professional networks, electronic word of mouth, and paid social media ads. The interviews were transcribed verbatim and thematic analysis was used to generate major themes: convenience, food literacy, and cost-effectiveness. Convenience was multifaceted, including protecting time, minimizing food preparation effort, and facilitating food access (without a vehicle, during illness and isolation, during bad weather, with mobility challenges, or while consuming drugs or alcohol). It was found that regardless of age, gender, or lifestyle, the contexts for using digital food retail services were similar. These services made food acquisition and preparation easier; however, the benefits may be at the detriment to food literacy. The added value that digital food retail services provided made up for any additional costs. This study highlighted the need for public health practitioners to consider different facets of convenience and the added value that digital food retail services offer when making healthy food shopping and preparation recommendations. Additionally, further investigation into the impacts of digital food retail on food literacy is warranted. Results from this study will be integrated into a larger survey exploring the relationship between online food purchasing behaviors and diet quality among Canadians.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142303211","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 reduced carbohydrate diet improves glycemic regulation in hyperglycemic older people in a retirement home: the SAGE study. 减少碳水化合物的饮食可改善养老院高血糖老年人的血糖调节:SAGE 研究。
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Pub Date : 2025-01-01 Epub Date: 2024-10-04 DOI: 10.1139/apnm-2024-0277
Camille Vandenberghe, Elisabelle Hardy, Marie Christine Morin, Valérie St-Pierre, Karine Groulx, Mélanie Fortier, Daniel Tessier, Paul Leclerc, Stephen C Cunnane
{"title":"A reduced carbohydrate diet improves glycemic regulation in hyperglycemic older people in a retirement home: the SAGE study.","authors":"Camille Vandenberghe, Elisabelle Hardy, Marie Christine Morin, Valérie St-Pierre, Karine Groulx, Mélanie Fortier, Daniel Tessier, Paul Leclerc, Stephen C Cunnane","doi":"10.1139/apnm-2024-0277","DOIUrl":"10.1139/apnm-2024-0277","url":null,"abstract":"<p><p>Poor glucose regulation associated with gradual insulin resistance is a significant risk factor in several age-related chronic diseases. An eating plan that promotes a lower carbohydrate intake may have a beneficial effect on glucose metabolism. This study aimed to evaluate how a diet reduced in carbohydrate by 32% (RCHO) over a 2 month period would influence the metabolic profile of older individuals (<i>N</i> = 24) living in a retirement home (RH). A continuous glucose monitor was used to measure blood glucose during four periods: the standard diet before (baseline) and after (washout) the intervention, during the 4 initial days of the RCHO diet (RCHO-early), and the final days of the 2 month intervention (RCHO-end). The blood metabolic profile was also measured (glucose, ketones, insulin, triglycerides, and cholesterol). RCHO intake decreased average blood glucose compared to the standard diet in hyperglycemic participants: RCHO-early 7.8 ± 1.0 vs 7.5 ± 1.1 mM (<i>p =</i> 0.012) and RCHO-end 7.8 ± 1.0 vs 7.0 ± 0.9 mM (<i>p =</i> 0.050). In the hyperglycemic participants, the percentage of time spent in hyperglycemia (>10.0 mM) decreased by 50% during the RCHO-early (<i>p =</i> 0.012) and by 66% at RCHO-end (<i>p</i>  <i>=</i> 0.021) compared to baseline. Glycated hemoglobin was significantly lower at RCHO-end in both hyperglycemic and normoglycemic participants compared to baseline (<i>p</i> < 0.008). Plasma ketones increased threefold in hyperglycemic participants at RCHO-end compared to baseline (<i>p</i> < 0.028). This study shows that an RCHO diet has metabolic health benefits in an older population and confirms its safety, tolerability, and acceptability in an RH (NCT06022094).</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376430","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
Relationship between body mass index z-score and blood pressure among children with overweight and obesity involved in a lifestyle modification program. 参与生活方式改变计划的超重和肥胖儿童体重指数z-得分与血压的关系
Marie Cyrenne-Dussault, Maude Sirois, Julie St-Pierre, Jean-Philippe Drouin-Chartier
{"title":"Relationship between body mass index z-score and blood pressure among children with overweight and obesity involved in a lifestyle modification program.","authors":"Marie Cyrenne-Dussault, Maude Sirois, Julie St-Pierre, Jean-Philippe Drouin-Chartier","doi":"10.1139/apnm-2024-0537","DOIUrl":"10.1139/apnm-2024-0537","url":null,"abstract":"<p><p>Documenting the relationship between body mass index z-score (BMIz) and blood pressure (BP) is crucial to better position the importance of adiposity reduction in managing cardiometabolic risk in children. This study assessed the relationship between BMIz and systolic and diastolic BP (SBP, DBP) among children with overweight or obesity receiving lifestyle counseling at a pediatric obesity management clinic in Montreal (Province of Quebec, Canada). This is a retrospective, longitudinal analysis of medical records of 438 children (2-17 years). At the first clinic appointment, 181 (41.3%) children had normal BP, 85 (19.4%) had prehypertension, and 172 (39.3%) had hypertension. At baseline, each one-point increment in BMIz was associated with 28.3% (95% confidence interval (CI): 7.9, 52.6; <i>P</i> = 0.005) higher odds of prehypertension or hypertension. Between the first and the last appointment, each one-point decrease in BMIz was associated with a reduction of -6.24 percentiles (95% CI: -11.17, -1.32; <i>P</i> = 0.02) in SBP and -4.99 percentiles (95% CI: -9.31, -0.66; <i>P</i> = 0.03) in DBP. Children who experienced BMIz reduction of -0.25 or more were more likely to achieving SBP reductions of -3.20 mmHg or more relative to those smaller BMIz changes (OR: 2.00, 95% CI: 1.23, 3.25; <i>P</i> = 0.006). Baseline BMIz, but not changes in BMIz over follow-up, was negatively associated with odds of normalizing BP among the 257 children with prehypertension or hypertension at baseline (OR: 0.70, 95% CI: 0.54, 0.91; <i>P</i> = 0.007). This study leveraged real-world clinic data to provide further importance on adiposity reduction in pediatric cardiometabolic risk management.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144129754","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
Skeletal muscle oxidative capacity related to intramyocellular lipid in young but not in older individuals. 骨骼肌氧化能力与年轻人的细胞内脂质有关,但与老年人无关。
Akito Yoshiko, Kana Shiozawa, Shiori Niwa, Hideyuki Takahashi, Teruhiko Koike, Kohei Watanabe, Keisho Katayama, Hiroshi Akima
{"title":"Skeletal muscle oxidative capacity related to intramyocellular lipid in young but not in older individuals.","authors":"Akito Yoshiko, Kana Shiozawa, Shiori Niwa, Hideyuki Takahashi, Teruhiko Koike, Kohei Watanabe, Keisho Katayama, Hiroshi Akima","doi":"10.1139/apnm-2024-0272","DOIUrl":"10.1139/apnm-2024-0272","url":null,"abstract":"<p><p>Skeletal muscles contain lipids inside and outside cells, namely intramyocellular lipids (IMCL) and extramyocellular lipids (EMCL), respectively; lipids have also been found to be interspersed between these muscles as adipose tissue, namely intermuscular adipose tissue (IMAT). Metabolized IMCL has been recognized as an important substrate for energy production and their metabolism is determined by the muscle oxidative capacity. Therefore, it has been speculated that muscle oxidative capacity is related to muscle lipid content. Excessive accumulation of EMCL and IMAT has been confirmed in older individuals, leading to metabolic disorders and a decline in muscle strength. However, whether EMCL and IMAT contribute to muscle lipid metabolism remains unknown. This study aimed to investigate whether muscle oxidative capacity is related to IMCL, EMCL, and IMAT in young and older individuals. A total of 18 young and 14 older individuals were included and their muscle oxidative capacity was assessed based on the recovery rate of muscle oxygen saturation after exercise, using near-infrared spectroscopy of the medial gastrocnemius. IMCL, EMCL, and IMAT were assessed using magnetic resonance spectroscopy and imaging. A relationship between muscle oxidative capacity and IMCL was confirmed in young (<i>r</i> = -0.47, <i>P</i> < 0.05) but not older individuals (<i>r</i> = 0.22, <i>P</i> = 0.45). Muscle oxidative capacity was not related to EMCL or IMAT in either young or older individuals. These results suggest that IMCL in young individuals can contribute to muscle lipid metabolism, but not EMCL and IMAT, and this relationship differs with aging.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":"50 ","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143384346","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 longitudinal evaluation of the Canadian 24-Hour Movement Guidelines for Adults: lessons learned and considerations for future research. 加拿大成人24小时运动指南的纵向评价:经验教训和对未来研究的考虑。
Kaitlyn D Kauffeldt, Amy E Latimer-Cheung, Guy Faulkner, Melissa C Brouwers, Rebecca Jones, Kirstin N Lane, Zachary J Weston, Tamara L Morgan, Olivia Varkul, Jennifer R Tomasone
{"title":"The longitudinal evaluation of the Canadian 24-Hour Movement Guidelines for Adults: lessons learned and considerations for future research.","authors":"Kaitlyn D Kauffeldt, Amy E Latimer-Cheung, Guy Faulkner, Melissa C Brouwers, Rebecca Jones, Kirstin N Lane, Zachary J Weston, Tamara L Morgan, Olivia Varkul, Jennifer R Tomasone","doi":"10.1139/apnm-2024-0348","DOIUrl":"10.1139/apnm-2024-0348","url":null,"abstract":"<p><p>National movement behaviour guidelines, in isolation, are unlikely to influence practice or policy unless accompanied by robust knowledge mobilization (KMb) strategies. However, without pairing KMb strategies with systematic evaluation, the impact of large-scale dissemination is unknown. The objectives of this study were to (1) systematically assess the dissemination of the Canadian 24-Hour Movement Guidelines for Adults Aged 18-64 Years and Adults Aged 65 Years or Older (24HMG) using the Reach Effectiveness Adoption Implementation and Maintenance (RE-AIM) framework and (2) provide recommendations to support the KMb and future impact of national movement behaviour guidelines. Intermediary organizations involved in the development and dissemination of the 24HMG were invited to participate in this study. A combination of methods-including cross-sectional surveys, media monitoring, and website content analysis-were performed at multiple timepoints over a 12-month period to assess the dissemination of the 24HMG. Findings suggest that the multi-pronged dissemination approach used for the 24HMG had a large reach to guideline target audiences (approximately 11.9 million) but resulted in low awareness and knowledge of the 24HMG among adults living in Canada (31.9% and 1.6%, respectively). Dissemination activities performed by intermediary organizations peaked in the first 4-months post-guideline release (76% of responding organizations), trending downwards over time (53% of responding organizations at 12 months). The complexity of disseminating national movement behaviour guidelines presents many challenges to systemic adoption. However, the impact of future national movement behaviour guidelines may be improved by augmenting current dissemination approaches to include coordinated, scalable, and capacity-building strategies.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":"50 ","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451289","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
Acute physiological and perceptual responses to three blood flow restricted interval exercise protocols: a randomised controlled trial. 三种限制血流量间歇运动方案的急性生理和知觉反应:一项随机对照试验。
Man Tong Chua, Alexiaa Sim, Stephen Francis Burns
{"title":"Acute physiological and perceptual responses to three blood flow restricted interval exercise protocols: a randomised controlled trial.","authors":"Man Tong Chua, Alexiaa Sim, Stephen Francis Burns","doi":"10.1139/apnm-2024-0423","DOIUrl":"10.1139/apnm-2024-0423","url":null,"abstract":"<p><p>Blood flow restriction (BFR) may enhance the acute training stimulus of exercise. This study examined acute physiological and perceptual responses to three lower-limb BFR + interval exercise protocols. Twenty-four club/university male athletes (age 25 ± 3.5, V̇O<sub>2max</sub> 47.0 ± 5.5 mL∙kg∙min<sup>-</sup> <sup>1</sup>) completed four experimental conditions in a randomised crossover manner: (i) high-intensity control (HI) - 100% maximal aerobic power (W<sub>max</sub>); (ii) high-intensity recovery occlusion (HIRO) - 100% W<sub>max</sub>, 80% limb occlusion pressure (LOP) during rest; (iii) moderate-intensity low occlusion (MILO) - 70% W<sub>max</sub>, 50% LOP during exercise; and (iv) moderate-intensity high occlusion (MIHO) - 70% W<sub>max</sub>, 80% LOP during exercise. All interval exercise protocols were three sets of five × 30 s cycling, 30 s unloaded active recovery with 3 min seated rest between sets. During recovery, HIRO condition indicated lower tissue saturation index, higher deoxyhaemoglobin, oxyhaemoglobin and total haemoglobin levels than other conditions (all <i>p <</i> 0.05). HIRO exhibited significantly higher heart rate (HR) from set 2 and blood lactate (bLa) at 5 min post-exercise than other conditions (all <i>p <</i> 0.05). Higher vastus lateralis muscle activity was exhibited on the last exercise repetition of HIRO than HI (<i>p <</i> 0.05). MIHO elicited significantly higher deoxygenation, lower muscle activation but similar HR and bLa than HI during exercise; and higher perceived pain and exertion than other conditions (all <i>p <</i> 0.05). Applying BFR during rest between high-intensity interval exercise sets increases physiological stresses without affecting exercise intensity or perceptual responses; applying BFR during moderate-intensity exercise may increase both physiological and perceptual responses beyond those of high-intensity exercise. <b>Study registration:</b> Clinicaltrials.gov (NCT05835544).</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":"1-13"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143371360","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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