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

{"title":"Investigating the relationship between aerobic fitness and lower-limb resistance vessel function before and after a bout of uninterrupted sitting.","authors":"Sophie E Rayner, Haoxuan Liu, Jennifer L Petterson, Myles W O'Brien, Derek S Kimmerly","doi":"10.1139/apnm-2024-0365","DOIUrl":"https://doi.org/10.1139/apnm-2024-0365","url":null,"abstract":"<p><p>Prolonged sitting reduces lower-limb resistance vessel function (RVF), whereas increasing aerobic fitness levels enhance lower-limb RVF. However, it is unknown if having higher aerobic fitness offers protection against prolonged sitting-induced declines in RVF. This study investigated the relationships between aerobic fitness versus reductions in lower-limb RVF following a 3-hour bout of uninterrupted sitting. In 30 healthy young to middle aged adults (19♀, 24±6 years), aerobic fitness was assessed during a graded, maximal cycling test. Relative peak oxygen consumption (V̇O2peak) was determined via indirect calorimetry [37.5±8.6 (24.7-60.7 mlO2/kg/min]. Popliteal blood flow (PBF) was recorded via duplex ultrasonography. Lower-limb RVF was assessed in the seated posture and quantified as the peak PBF and area under the curve (PBFAUC, first minute of hyperemia) responses to 5-min of distal cuff-induced ischemia. The lower-limb RVF assessment was performed before and after a sitting. Peak PBF decreased following sitting (473±254 to 387±199 mL/min, P=0.024), while PBFAUC remained unchanged (6145±3063 versus 6446±3826 mL, P=0.758). Relative V̇O2peak was not associated with Pre-Sitting Peak PBF (R=0.236, P=0.210) or PBFAUC (R=-0.026, P=0.889). Furthermore, relative V̇O2peak was also not associated with sitting-induced reductions in Peak PBF (R=-0.145, P=0.444). The reductions in Peak PBF following sitting support previous work demonstrating that prolonged uninterrupted sitting negatively impacts lower-limb RVF. In contrast, prolonged sitting did not alter the PBFAUC response, suggesting that Peak PBF responses may provide a more sensitive index of sitting-induced declines in RVF. In young to middle-aged, healthy adults, aerobic fitness did not impact baseline or sitting-induced reductions in lower-limb RVF.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143733579","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}

{"title":"Comparison of Maximal Glycolytic Rate from Ergometer to On-Water Sprinting in Elite Canoe Polo Players.","authors":"Benedikt Johannes Meixner, Manuel Matzka, Billy Sperlich","doi":"10.1139/apnm-2024-0450","DOIUrl":"https://doi.org/10.1139/apnm-2024-0450","url":null,"abstract":"<p><p>As a predictor for anerobic performance in many sports, the maximal glycolytic rate (νLamax) is assessed in a laboratory setting. However, differences between lab-based test and a sport specific field setting remains unclear. The aim of this study was to compare ergometer and on-water tests for νLamax in elite youth canoe polo players. Fifteen elite German youth canoe polo players performed a 15-s all-out sprint on a Dansprint ergometer and a 50-meter (males) or 40-meter (females) all-out sprint on water. Capillary blood samples were taken before and every minute for 8 minutes after the sprint to determine ΔLa (difference between resting and peak post-exercise blood lactate concentrations). Body composition was assessed using Tanita BC-601 impedance analysis. Power output during the 15-s all-out ergometer sprint showed a high correlation with fat-free mass (r = 0.82) and total lactate production (r = 0.86). A multiple regression model incorporating both parameters improved prediction of power output to 89%. Velocity during the 40 and 50-meter on-water sprints correlated moderately with νLamax (r = 0.72) and body-fat percentage (r = -0.62). A considerable difference in both ΔLa and νLamax was evident between ergometer and on-water sprinting. νLamax is positively correlated with mean velocity and power output during on-water and ergometer sprinting, and that body composition significantly influences the relationship between lactate accumulation and performance output. Additionally, performance metrics and capillary blood lactate measurements cannot be simply transferred between ergometer and on-water tests, indicating that ergometer-derived values do not reliably predict on-water performance.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143733576","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}

{"title":"Acute Effects of a Reformulated Plant-Based Meat Alternative Compared to Beef within a High-Fat Meal on Inflammatory and Metabolic Factors: A Randomized Crossover Trial.","authors":"Sarah E Fruit, Natalie G Keirns, Morgan E Higgins, Alexis R Quirk, Jenna K Schifferer, Olivia R Romanovich, Amy C Yakos, Karrie Osborne, Scott Trappe, Bryant H Keirns","doi":"10.1139/apnm-2024-0498","DOIUrl":"https://doi.org/10.1139/apnm-2024-0498","url":null,"abstract":"<p><p>Plant-based meat alternative (PBMA) consumption has increased amid significant reformulation efforts. Although reformulated PBMAs have characteristics that could provide cardiometabolic benefits over animal proteins (e.g., higher fiber, certain phytochemicals/micronutrients), their acute health effects remain unclear. Moreover, whether baseline adiposity (i.e., normal weight or overweight/obesity) affects the response to PBMA intake is unknown. We conducted a randomized crossover study where healthy participants (N=30) with a normal body mass index (BMI;18.5-24.9 kg/m2;n=15) or overweight/obese BMI (>25.0 kg/m2;n=15) consumed two high-fat meals on separate occasions containing a reformulated PBMA (Beyond Meat Cookout ClassicTM) or similar beef product (80% lean ground beef). Meals were matched for energy (950 kcal) and ~macronutrient matched (71g fat/31-35g carbohydrate/41-42g protein). At each trial, an intravenous catheter was inserted and biomarkers of inflammation (i.e., interleukin [IL]-6, tumor necrosis factor [TNF]-α), intestinal permeability (i.e., lipopolysaccharide binding protein [LBP], soluble CD14 [sCD14], LBP:sCD14 ratio), and metabolic factors (triglycerides, HDL-C, glucose) were measured at baseline and hourly for 4 hours post-meal. Paired t-tests and two-way mixed model ANOVAs were used to examine within-meal-condition changes and differences in incremental area under the curve (iAUC) across meal and BMI conditions, respectively. Regardless of protein source, high-fat meals increased IL-6, TNF-α, LBP, sCD14, LBP:sCD14, and triglycerides and decreased HDL-C (p's≤0.01). In BMI subgroup analyses, an interaction effect for IL-6 iAUC was observed (PMealxBMI<0.05), but post-hoc analyses were not significant (p's≥0.07). Overall, inclusion of a reformulated PBMA within a high-fat meal resulted in a similar cardiometabolic response to a nearly identical meal containing animal protein (ClinicalTrials.gov:NCT06445296).</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702472","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}

{"title":"A Content-Analysis of Job Advertisements for Exercise Professionals in Canada: A Need for Clarification of Qualifications.","authors":"Myles W O'Brien, Madeline Shivgulam, Jocelyn Waghorn, Molly Courish, Jonathon R Fowles, Taniya S Nagpal","doi":"10.1139/apnm-2024-0184","DOIUrl":"https://doi.org/10.1139/apnm-2024-0184","url":null,"abstract":"<p><p>Despite the general population seeking out exercise professionals and the strong interest of other healthcare providers in referring patients to exercise professionals, what characterizes an 'exercise professional' is poorly understood. The purpose of this study was to summarize the required qualifications and certifications described in job advertisements hiring an 'Exercise Professional' in Canada. A common career finding website (Indeed) and other relevant organizations were searched for job advertisements. The specific search terms were: \"Kinesiology\", \"Kinesiologist\", \"Exercise Professional\", and \"Exercise Physiologist\". Job advertisements that were hiring an exercise professional and described some exercise related duties were included for content analysis. n=177/1364 unique job advertisements met inclusion criteria. Job titles were grouped into six main categories: Kinesiologist (n=88/177), Personal Trainer (n=49/177), Fitness Coach/Instructor (n=38/177), Strength & Conditioning Specialist (n=5/177), Exercise Physiologist (n=4/177), and other (n=31/177). Most positions required (n=101) or preferred (n=36) a Kinesiology degree. n=48/92 (88 Kinesiology and 4 Exercise Physiologist positions) indicated a need/interest in applicants having a membership with a provincial Kinesiology association/affiliation, n=8/92 a Clinical Exercise Physiologist certification, and n=6/92 a general 'Kinesiology certification'. This emphasizes the need for unique requirements of exercise professional positions and guidelines for the (di)similar scope of practice across exercise professional training.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143671548","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}

{"title":"Cardiometabolic health, socioeconomic status, and 2019 Canada's Food Guide Food Choices Assessment Score: Findings from the Canadian Health Measures Survey.","authors":"Samer Hamamji, Daniel Zaltz, Mary R L'Abbé","doi":"10.1139/apnm-2024-0357","DOIUrl":"https://doi.org/10.1139/apnm-2024-0357","url":null,"abstract":"<p><p>Suboptimal diets are linked to higher cardiometabolic risks and influenced by socioeconomic status. In 2019, Health Canada released an updated Canda's Food Guide (CFG) supported with Canada's Dietary Guidelines (CDG) to help Canadians achieve healthy diet. This study aims to investigate the association between food choices assessed by a Food Choices Assessment Score (FCAS) according to 2019 CFG/CDG, and socioeconomic status and cardiometabolic risk factors among Canadian adults. Dietary choices of Canadian adults (n=6,352) from the food frequency questionnaire (FFQ) data of the Canadian Health Measures Survey (CHMS) cycles 5 & 6 (2016-2019) were used. Canadian adults with post-secondary education and high household income were associated with higher FCAS (+6.2; 95%CI 4.2, 8.2) and (+2.1; 95%CI 0.3, 3.8), respectively. Compared with the lowest quintile of the FCAS, Canadians in the highest quintile of the FCAS had lower odds of elevated BMI (0.63; 95%CI 0.44, 0.91), elevated WC (0.51; 95%CI 0.27, 0.97) in females but not in males, elevated systolic (0.69; 95%CI 0.48, 0.97), diastolic blood pressure (0.69; 95%CI 0.50, 0.96), TC (0.59; 95%CI 0.39, 0.89), non-HDL-C (0.51; 95%CI 0.31, 0.86), LDL-C (0.60; 95%CI 0.38, 0.95), Apo-B (0.62; 95%CI 0.39, 0.96), HbA1C (0.53; 95%CI 0.31, 0.93), FBG (0.62; 95%CI 0.4, 0.94), HOMA-IR (0.60; 95%CI 0.39, 0.91), and hs-CRP (0.59; 95%CI 0.36, 0.96). HDL-C and TG were not associated with FCAS. These analyses suggest strong associations between dietary choices, aligned with 2019 CFG/CDG as measured by the FCAS, and socioeconomic status and better cardiometabolic health among Canadian adults.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143652366","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}

{"title":"Grocery and chain restaurant foods and beverages allowed for sale in Ontario schools: An evaluation against Ontario's School Food and Beverage Policy.","authors":"Emily R Ziraldo, Hayun Jeong, Annette Blais, Mavra Ahmed, Momiji Uji, Yahan Yang, Vasanti Malik, Daniel Sellen, Mary R L'Abbé","doi":"10.1139/apnm-2024-0495","DOIUrl":"https://doi.org/10.1139/apnm-2024-0495","url":null,"abstract":"<p><p>The Ontario School Food and Beverage policy, also known as Policy/Program Memorandum 150 (PPM150), was established in 2010 to promote healthier food choices among children by setting nutrition standards for foods and beverages sold in publicly funded elementary and secondary schools. Schools face barriers to complying with the PPM150 nutrition standards including a lack of human resources, technical tools and financial means. Therefore, to support school food providers in sourcing foods that meet the nutrition standards in PPM150, this cross-sectional study assessed the alignment of foods and beverages from grocery stores and menu offerings from chain restaurants with the PPM150 nutrition standards. We compared nutrition data for foods and beverages available at grocery stores and menu items available at chain restaurants from the Food Label Information and Price (FLIP) 2020 (n=35,103) and Menu-FLIP 2020 (n=18,649) databases, respectively, against the PPM150 nutrition standards. Half of foods from grocery stores (51%) and most from chain restaurants (85%) did not meet PPM150 standards and are not permitted for sale. For beverages, 91% from grocery stores and 98% from chain restaurants are not permitted at elementary schools. At secondary schools, 56% of beverages from grocery stores and 94% from restaurants are not permitted. Findings suggest few foods, beverages and chain restaurant menu items meet the PPM150 nutrition standards, potentially posing an additional barrier for Ontario schools to procure and offer healthy foods to students.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143652430","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}

{"title":"Physiological monitoring for occupational heat stress management: recent advancements and remaining challenges.","authors":"Sean R Notley, Robert D Meade, David P Looney, Christopher L Chapman, Adam W Potter, Alison Fogarty, Tabassum Howlader, L C Main, Karl E Friedl, Glen P Kenny","doi":"10.1139/apnm-2024-0395","DOIUrl":"https://doi.org/10.1139/apnm-2024-0395","url":null,"abstract":"<p><p>Occupational heat stress poses a major threat to worker health and safety that is projected to worsen with global climate warming. To manage these adverse effects, most industries rely on administrative controls (stay times and work-to-rest allocations) that are designed to limit the rise in body core temperature in the 'average' individual. However, due to the extensive inter- and intra-individual variation in thermoregulatory function, these administrative controls will result in some individuals having their work rate and productivity unnecessarily restricted (false positives), while others may be subject to rises in heat strain that compromise health (false negatives). Physiological monitoring has long been touted as a more effective approach for individualized protection from excessive heat stress. This has led to extensive interest in the use of wearable technology for heat stress management from both the scientific community and manufacturers of wearable devices, which has accelerated in the past decade. In this review, we evaluate the merits of the recent and emerging approaches to manage occupational heat strain with wearable physiological monitors. Against this background, we then describe the issues that we perceive to be unresolved regarding the use of wearable heat strain monitors and the research efforts needed to address those issues. Particular emphasis is directed to the efficacy of existing physiological indicators of heat strain, how to define upper limits for those indicators and the efforts required to rigorously validate emerging wearable heat strain monitoring devices.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143598529","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}

{"title":"An exploration of physical literacy in Masters Athletes.","authors":"Garry McCracken, Elijah M K Haynes, Jennifer M Jakobi","doi":"10.1139/apnm-2024-0373","DOIUrl":"https://doi.org/10.1139/apnm-2024-0373","url":null,"abstract":"<p><p>Sport participation among older adults, is increasing, but many still fall short of meeting physical activity (PA) guidelines. Master athletes, who engage in PA through systematic training, and competition, offer unique insights into PA practices in later life. This study explored whether master athletes embody the principles of physical literacy and how their experiences could inform strategies to promote PA among older adults. An electronic survey completed by 35 master athletes (55-75 years, 20 female) and follow-up interviews with eight participants revealed that most were unfamiliar with the term \"physical literacy,\" yet they intuitively practiced its principles. Master athletes identified parallels between their behaviors and physical literacy but viewed existing models as primarily youth-focused and less applicable to older adults. Additionally, lifelong sport participation was not universal; nine participants, predominantly women, began competitive sports later in life. A key finding was the importance of social connectedness, which emerged as a critical motivator and enabler for sustained PA among master athletes. This element, largely absent from current physical literacy frameworks, may be vital for engaging older adults in PA. Integrating social connection into physical literacy models could address barriers unique to this demographic, enhancing participation and promoting healthier aging.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495018","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}

{"title":"Heat strain in different hot environments hiking in wildland firefighting garments.","authors":"Nathan E Bartman, Hayden W Hess, Deanna Colburn, Jennifer Temple, David Hostler","doi":"10.1139/apnm-2024-0240","DOIUrl":"10.1139/apnm-2024-0240","url":null,"abstract":"<p><p>Wildland firefighters can work at high intensity in hot environments for extended periods of time. The resulting heat strain may be modified by the environmental conditions (i.e., ambient temperature and humidity [RH]) even at equal wet-bulb globe temperatures (WBGTs). This investigation assessed if a hot and dry condition would create greater strain than moderate and high humidity at equivalent WBGT (28 °C). Twelve participants (age 24 ± 2 year) walked at 40%-50% maximum aerobic capacity for 90 and 40 min separated by a 20 min rest in dry (40 °C, 20% RH), moderate-humidity (34 °C, 50% RH), and high-humidity (29 °C, 90% RH) conditions wearing fire-resistant jacket, pants, gloves, and helmet with the neck and face exposed. Peak core temperature was higher in moderate-humidity (38.9 ± 0.2 °C, <i>p</i> = 0.01) and high-humidity (38.9 ± 0.6 °C, <i>p</i> < 0.01) than dry condition (38.5 ± 0.3 °C). Average net heat gain was less in dry (33 ± 22 W) compared to moderate-humidity (38 ± 23 W, <i>p</i> < 0.01) and high-humidity (39 ± 28 W, <i>p</i> < 0.01). Peak heart rate (174 ± 14 bpm, <i>p</i> = 0.94), physiological strain index (7.7 ± 1.4 score, <i>p</i> = 0.99), perceived exertion (8 ± 2 rating, <i>p</i> = 0.97), and perceptual strain index (7.3 ± 1.6 score, <i>p</i> = 0.99) were not different in high-humidity compared to the dry condition (167 ± 19 bpm, 6.9 ± 1.3 score, 6 ± 2 rating, 7.3 ± 1.7 score, respectively). Whole-body sweat rate (15 ± 6 mL/min, <i>p</i> = 0.58) and thermal sensation (7 ± 1 rating, <i>p</i> = 0.37) were not different. Hiking in a humid condition while wearing protective garments creates greater exertional heat strain compared to a dry condition of equivalent WBGT. Wildland firefighters should consider extra strategies to mitigate hyperthermia when humidity is high.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559706","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}

{"title":"Peak V̇O₂ during handcycling in spinal cord injured athletes: incremental versus verification testing.","authors":"Caio de Araújo Rosa, Diego Antunes, Thiago Pereira Ventura, Gabriela Fischer, Gary Brickley, Ricardo Dantas de Lucas, Tiago Turnes","doi":"10.1139/apnm-2024-0193","DOIUrl":"10.1139/apnm-2024-0193","url":null,"abstract":"<p><p>The present study aimed to compare peak oxygen uptake (V̇O₂peak), peak heart rate (HRpeak), and peak O₂pulse during an incremental and a verification test performed on the same day in hand-cyclists with spinal cord injury (SCI). Eight competitive SCI hand-cyclists (age: 23 ± 2.7 years; V̇O₂peak: 36.3 ± 14.0 mL.kg^-1.min^-1) performed a maximal incremental handcycling test and a verification test to exhaustion at 100% of the peak speed on an oversized treadmill. The V̇O₂peak, HRpeak, and peak O₂pulse (i.e., VO₂/HR) were compared between incremental and verification tests. Absolute and relative V̇O₂peak obtained in the verification test (2.51 ± 0.96 L.min^-1; 36.3 ± 14.0 mL.kg.min^-1) were significantly higher than values obtained in the incremental test (2.24 ± 0.79 L.min^-1; 33.5 ± 12.9 mL.kg.min^-1; <i>P</i> < 0.05). The mean differences (95% CL) of absolute and relative V̇O₂peak between tests were 8.2% (3.3%-13.2%) and 10.9% (4.3%-18.1%), respectively. There was no difference in HR peak (incremental: 169 ± 24 bpm; verification 167 ± 25 bpm; <i>P</i> = 0.130). Peak O₂pulse from the verification test (14.6 ± 4.7 mL.beat^-1) was higher than incremental test (13.0 ± 3.8 mL.beat^-1; <i>P</i> = 0.007). In conclusion, the verification test elicited greater V̇O₂peak and O₂pulse than a two-phase incremental test despite the similar HRpeak. This indicates that for this progressive protocol lasting ≥25 min, the verification phase adds value to determining V̇O₂peak in SCI athletes.</p>","PeriodicalId":93878,"journal":{"name":"Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme","volume":" ","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":"142751927","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}