International journal of sports physiology and performance最新文献_第6页

Optimal Support for Elite Sprinters Using a Minimal, Adequate, and Accurate Approach. 采用最少、足够和准确的方法为精英短跑运动员提供最佳支持。

IF 3.3 2区医学

International journal of sports physiology and performance Pub Date : 2024-09-12 DOI: 10.1123/ijspp.2024-0227

Jad Adrian Washif,David B Pyne

{"title":"Optimal Support for Elite Sprinters Using a Minimal, Adequate, and Accurate Approach.","authors":"Jad Adrian Washif,David B Pyne","doi":"10.1123/ijspp.2024-0227","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0227","url":null,"abstract":"BACKGROUNDIn high-performance sport, the support provided by sport scientists and other staff can be a valuable resource for coaches and athletes.PURPOSEWe propose and detail here the approach of \"minimal, adequate, and accurate\" sport-science support to ensure that programs of work and solutions are both economical and effective.METHODSOur support provision advocates for utilization of \"minimal\" resources (employing the least amount of time, tools, and funding) necessary to achieve the desired outcomes. We strive for \"adequate\" information that fulfills specific objectives without excess and with the requirement that methods and data used are \"accurate\" (valid and reliable). To illustrate the principles of this approach, we outline a real-world example of supporting 100-m track (athletics) sprinters preparing and competing in an international competition. The provision of performance support emphasizes an integrated approach, combining knowledge and insights from multiple sport-science disciplines. The key facets managed under this approach are (1) neuromuscular readiness, (2) wellness monitoring, (3) movement observation, (4) motivation, (5) biomechanics and performance analysis, and (6) qualitative feedback. These facets are based on the specific performance determinants and influencing factors of an event (100-m dash).CONCLUSIONSApplication of this quantitative and qualitative approach can enhance the ability to make informed decisions. Nevertheless, the approach must be planned, evaluated, and refined on a regular basis to enable effective decision making in sport-science support. The 3-element approach of \"minimal, adequate, and accurate\" should be codesigned and supported by the athletes, coaches, and staff to ensure successful implementation.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":"29 1","pages":"1-7"},"PeriodicalIF":3.3,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Training-Load Management Ambiguities and Weak Logic: Creating Potential Consequences in Sport Training and Performance. 训练负荷管理的模糊性和弱逻辑：在体育训练和运动表现中创造潜在后果。

IF 3.3 2区医学

International journal of sports physiology and performance Pub Date : 2024-09-10 DOI: 10.1123/ijspp.2024-0158

Stephen West,Ian Shrier,Franco M Impellizzeri,Jo Clubb,Patrick Ward,Garrett Bullock

{"title":"Training-Load Management Ambiguities and Weak Logic: Creating Potential Consequences in Sport Training and Performance.","authors":"Stephen West,Ian Shrier,Franco M Impellizzeri,Jo Clubb,Patrick Ward,Garrett Bullock","doi":"10.1123/ijspp.2024-0158","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0158","url":null,"abstract":"BACKGROUNDThe optimization of athlete training load is not a new concept; however in recent years, the concept of \"load management\" is one of the most widely studied and divisive topics in sports science and medicine.PURPOSEDiscuss the challenges faced by sports when utilizing training load monitoring and management, with a specific focus on the use of data to inform load management guidelines and policies/mandates, their consequences, and how we move this field forward.CHALLENGESWhile guidelines can theoretically help protect athletes, overzealous and overcautious guidelines may restrict an athlete's preparedness, negatively influence performance, and increase injury risk. Poor methods, wrong interpretation of study findings, and faulty logic do not allow for systematic scientific evaluations to inform guidelines. Practical Solutions: Guidelines and mandates should be developed through a systematic research process with stronger research designs and clear research questions. Collaborating with statistical and epidemiological experts is essential. Implementing open science principles and sharing all sports training load data increase transparency and allow for more rapid and valid advancements in knowledge. Practitioners should incorporate multiple data streams and consider individual athlete responses, rather than applying broad guidelines based on average data.CONCLUSIONMany current training load guidelines and mandates in sports come from good intentions; however, they are arbitrary without sound knowledge of the underlying scientific principles or methods. Common sense guidelines are helpful when there is sparse literature, but they should be careful to avoid arbitrarily choosing findings from weak research. Without precise scientific inquiries, implementing training load interventions or guidelines can have negative implications.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":"42 1","pages":"1-4"},"PeriodicalIF":3.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","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 a Synthetic-Grass Sport Surface on Physiology and Perception During Intermittent Exercise in Hot Conditions. 合成草运动场地对炎热条件下间歇运动的生理和感知的影响

IF 3.3 2区医学

International journal of sports physiology and performance Pub Date : 2024-09-10 DOI: 10.1123/ijspp.2024-0095

Gurpreet Singh,Kyle J M Bennett,Hannah McGuigan,Scott G Goddard,Christopher J Stevens

{"title":"The Effect of a Synthetic-Grass Sport Surface on Physiology and Perception During Intermittent Exercise in Hot Conditions.","authors":"Gurpreet Singh,Kyle J M Bennett,Hannah McGuigan,Scott G Goddard,Christopher J Stevens","doi":"10.1123/ijspp.2024-0095","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0095","url":null,"abstract":"PURPOSEThe current study aimed to determine the effect of a synthetic-grass sport surface on core body temperature, skin temperature, heart rate, thermal sensation, thermal comfort, and rating of perceived exertion (RPE) during intermittent exercise in hot conditions.METHODSUsing a randomized crossover design, 13 trained/developmental team-sport athletes completed two 50-minute standardized intermittent running protocols on a synthetic and a natural-grass surface, on separate days (control-condition air temperature 32.6 °C [1.3 °C], relative humidity 43.2% [5.3%]).RESULTSFinal skin temperature was significantly higher on synthetic compared with natural grass at the calf (40.1 °C [2.5 °C] vs 33.4 °C [0.6 °C]; P < .001), shoulder (36.6 °C [1.7 °C] vs 33.7 °C [0.7 °C]; P < .001), and chest (33.2 °C [1.1 °C] vs 31.8 °C [1.2 °C]; P = .02). Thermal sensation (median: 2.3; interquartile range [0.5] vs 2.2 [0.5], P = .03) and sweat rate (1.5 [0.4] L·h-1 vs 1.2 [0.3] L·h-1; P = .02) were also significantly higher on synthetic grass. While final core body temperature was significantly higher on the natural than synthetic grass (38.4 °C [0.3 °C] vs 38.2 °C [0.4 °C]), there were no significant differences in delta core temperature, as well as heart rate, thermal comfort, or RPE.CONCLUSIONSHigher skin temperatures, thermal sensation, and sweat rates suggest that exercising on synthetic grass in hot conditions may increase some markers of heat strain during exercise. However, delta core body temperature, heart rate, thermal comfort, and RPE remained unaffected.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":"45 1","pages":"1-7"},"PeriodicalIF":3.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Efficacy of Ischemic Preconditioning on Handgrip Strength and Strength Endurance in Para-Athletes With Spinal-Cord Injury: A Pilot Study. 缺血预处理对脊髓损伤残疾人运动员手握力和力量耐力的功效：一项试点研究

IF 3.3 2区医学

International journal of sports physiology and performance Pub Date : 2024-09-10 DOI: 10.1123/ijspp.2024-0188

Lexi Kasofsky,Rebecca Cross,Dallin Tavoian,Jason Siegler

{"title":"The Efficacy of Ischemic Preconditioning on Handgrip Strength and Strength Endurance in Para-Athletes With Spinal-Cord Injury: A Pilot Study.","authors":"Lexi Kasofsky,Rebecca Cross,Dallin Tavoian,Jason Siegler","doi":"10.1123/ijspp.2024-0188","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0188","url":null,"abstract":"PURPOSEThis pilot study investigated the functional outcomes after ischemic preconditioning (IPC) in high-level para-athletes with spinal-cord injury.METHODSNine athletes completed 2 handgrip exercise trials (an isometric hold to failure at 60% maximal voluntary contraction [ISO] and a progressive, intermittent handgrip to failure [INT]), preceded by either IPC (220 mm Hg) or sham (20 mm Hg) for six 5-minute periods, in a repeated-measures, crossover design.RESULTSAlthough small performance improvements in time to task failure were observed in the ISO (∼5%) and INT (∼8%) IPC conditions, which are similar to those reported elsewhere, no statistical influence was observed (ISO-IPC, 74.2 [32.6] s; SHAM, 70.7 [27.2] s; P = .73; INT-IPC, 426.0 [80.1] s; SHAM, 392.2 [42.5] s; P = .35). Fatigue was evident in the forearm muscle force (maximal voluntary contraction) ISO (mean decline of 178.1 [76.0] N [95% CI, -10.4 to 366.7 N]; P < .05) and INT (mean decline of 182.2 [72.5] N [95% CI, 34.5-329.8 N]; P < .05) trials but not different between treatments (P > .95).CONCLUSIONSAlthough small performance improvements in time to task failure were observed, the findings of the present data set suggest that acute bouts of IPC do not meaningfully influence fatigue during handgrip exercise in para-athletes with spinal-cord injury.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":"2016 1","pages":"1-4"},"PeriodicalIF":3.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Validating the Use of Continuous Glucose Monitors With Nondiabetic Recreational Runners. 验证连续式葡萄糖监测仪在非糖尿病休闲跑步者中的使用。

IF 3.3 2区医学

International journal of sports physiology and performance Pub Date : 2024-09-09 DOI: 10.1123/ijspp.2024-0102

Lesley J Mason,Timothy Hartwig,David Greene

{"title":"Validating the Use of Continuous Glucose Monitors With Nondiabetic Recreational Runners.","authors":"Lesley J Mason,Timothy Hartwig,David Greene","doi":"10.1123/ijspp.2024-0102","DOIUrl":"https://doi.org/10.1123/ijspp.2024-0102","url":null,"abstract":"PURPOSEContinuous glucose monitors (CGMs) are becoming increasingly popular among endurance athletes despite unconfirmed accuracy. We assessed the concurrent validity of the FreeStyle Libre 2 worn on 2 different sites at rest, during steady-state running, and postprandial.METHODSThirteen nondiabetic, well-trained recreational runners (age = 40 [8] y, maximal aerobic oxygen consumption = 46.1 [6.4] mL·kg-1·min-1) wore a CGM on the upper arm and chest while treadmill running for 30, 60, and 90 minutes at intensities corresponding to 50%, 60%, and 70% of maximal aerobic oxygen consumption, respectively. Glucose was measured by manually scanning CGMs and obtaining a finger-prick capillary blood glucose sample. Mean absolute relative difference, time in range, and continuous glucose Clarke error grid analysis were used to compare paired CGM and blood glucose readings.RESULTSAcross all intensities of steady-state running, we found a mean absolute relative difference of 13.8 (10.9) for the arm and 11.4 (9.0) for the chest. The coefficient of variation exceeded 70%. Approximately 47% of arm and 50% of chest paired glucose measurements had an absolute difference ≤10%. Continuous glucose Clarke error grid analysis indicated 99.8% (arm) and 99.6% (chest) CGM data fell in clinically acceptable zones A and B. Time-in-range analysis showed reduced accuracy at lower glucose levels. However, CGMs accurately detected trends in mean glucose readings over time.CONCLUSIONSCGMs are not valid for point glucose monitoring but appear to be valid for monitoring glucose trends during steady-state exercise. Accuracy is similar for arm and chest. Further research is needed to determine whether CGMs can detect important events such as hypoglycemia during exercise.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":"29 1","pages":"1-7"},"PeriodicalIF":3.3,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antidoping 2.0: Is Adding Power-Output Data to the Antidoping Pool the Next Step? Experts' Viewpoint. 反兴奋剂 2.0：反兴奋剂 2.0：在反兴奋剂数据库中加入动力输出数据是下一步吗？专家观点。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2024-09-06 Print Date: 2025-01-01 DOI: 10.1123/ijspp.2024-0088

Sebastian Sitko, Pedro Valenzuela, Nathan Townsend, Marco Pinotti, Mikel Zabala, Xabier Artetxe, Gabriele Gallo, Manuel Mateo-March, Dajo Sanders, Frédéric Grappe, David C Clarke, Teun van Erp, Aitor Viribay

{"title":"Antidoping 2.0: Is Adding Power-Output Data to the Antidoping Pool the Next Step? Experts' Viewpoint.","authors":"Sebastian Sitko, Pedro Valenzuela, Nathan Townsend, Marco Pinotti, Mikel Zabala, Xabier Artetxe, Gabriele Gallo, Manuel Mateo-March, Dajo Sanders, Frédéric Grappe, David C Clarke, Teun van Erp, Aitor Viribay","doi":"10.1123/ijspp.2024-0088","DOIUrl":"10.1123/ijspp.2024-0088","url":null,"abstract":"Background: Efforts are needed to improve antidoping procedures. The widespread use of power meters among cyclists could help in this regard. However, controversy exists on whether performance monitoring through power-output data could be of help for antidoping purposes.Purpose: The objective of the present study was to provide insight into the feasibility and utility of implementing power-based performance monitoring in elite cycling. An expert panel of 15 applied sport scientists and professional cycling coaches were asked for their opinions and perspectives on incorporating power data into the antidoping risk-assessment process.Results: Two different viewpoints were identified from the responses provided by the experts. Some believed that power monitoring could be implemented as an antidoping tool, provided that several surmountable challenges are first addressed. These authors provided suggestions related to the potential practical implementation of such measures. Others, on the contrary, believed that power meters lack sufficient reliability and suggest that the professional cycling world presents conflicts of interest that make this intervention impossible to implement nowadays.Conclusions: The debate around the utility of power-meter data in the antidoping fight has been ongoing for more than a decade. According to the opinions provided by the experts' panel, there is still no consensus on the real utility and practical implementation of this intervention.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"172-175"},"PeriodicalIF":3.5,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142145645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pacing Demands in Competitive Nordic Skiing. 北欧滑雪竞技中的步速要求。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2024-09-04 Print Date: 2025-01-01 DOI: 10.1123/ijspp.2024-0135

Thomas Losnegard, Jan Kocbach, Øyvind Sandbakk

{"title":"Pacing Demands in Competitive Nordic Skiing.","authors":"Thomas Losnegard, Jan Kocbach, Øyvind Sandbakk","doi":"10.1123/ijspp.2024-0135","DOIUrl":"10.1123/ijspp.2024-0135","url":null,"abstract":"Background and purpose: Cross-country skiing, biathlon, and Nordic combined are Winter Olympics sports that involve cross-country skiing in undulating terrain, characterized by various subtechniques and repeated intensity fluctuations. The stochastic interval profile of these sports necessitates the continuous regulation of work and energy expenditure throughout training sessions and competitions, a concept known as pacing. With the advent of technological advancements that allow for the measurement of these features during training and competitions, scientific studies have broadened our understanding of the associated racing and pacing demands. We provide the current scientific overview of pacing demands in competitive cross-country skiing, biathlon, and Nordic combined and propose guidelines for how performance can be enhanced by adjusting pacing behavior.Conclusions and practical applications: The study of pacing in skiing has evolved from basic lap-to-lap, or segment, analyses to detailed insights into micropacing strategies. This includes analysis of speed, internal and external power, subtechnique distribution, and associated temporal patterns, combined with subjective ratings of effort. While several objective tools such as heart rate, blood lactate concentration, and speed measurements are widely used in practice, current understanding suggests that these measures should supplement, rather than replace, the use of perceived effort (eg, rating of perceived exertion) to regulate intensity during training and competition in undulating terrain. Therefore, the ability to self-regulate effort appears to be an important performance characteristic and should be developed in adolescents and systematically used to optimize and evaluate the training process and race performance throughout athletes' careers.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"4-16"},"PeriodicalIF":3.5,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Female Athlete Sport Science Versus Applied Practice: Bridging the Gap. 女运动员运动科学与应用实践：缩小差距。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2024-09-04 Print Date: 2024-12-01 DOI: 10.1123/ijspp.2023-0390

Richard J Burden, Anita Biswas, Anthony C Hackney

{"title":"Female Athlete Sport Science Versus Applied Practice: Bridging the Gap.","authors":"Richard J Burden, Anita Biswas, Anthony C Hackney","doi":"10.1123/ijspp.2023-0390","DOIUrl":"10.1123/ijspp.2023-0390","url":null,"abstract":"Background: Female-specific science, medicine, and innovation have grown steadily since the turn of the decade as the focus on female sport continues to advance. While this growth is welcome, and despite the best of intentions, it is not always coupled with valuable application.Purpose: This commentary discusses barriers faced when developing and applying sport-science research and innovation activities in female sport. We offer several practical solutions to help safeguard the progress of female athlete health and performance support. We make 3 suggestions: (1) multicenter studies to increase the number of elite athletes participating in research and enhance statistical power, which is often lacking in sport-science research; (2) further acceptance of case studies in elite sport research, as they can include context alongside athlete data that more traditional research designs perhaps do not; and (3) collaborative, codesigned approaches to research and innovation, wherein researchers, practitioners, and athletes all contribute to balancing scientific rigor with applied \"real-world\" understanding, which may result in the generation of richer, more meaningful knowledge for the benefit of female athletes and their environments.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1518-1521"},"PeriodicalIF":3.5,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","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 Water Dousing on Heat Strain and Performance During Endurance Running in the Heat. 浇水对高温下耐力跑的热应变和表现的影响

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2024-09-04 Print Date: 2024-11-01 DOI: 10.1123/ijspp.2024-0044

Mitchell Anderson, Clint Bellenger, Georgia K Chaseling, Samuel Chalmers

{"title":"The Effect of Water Dousing on Heat Strain and Performance During Endurance Running in the Heat.","authors":"Mitchell Anderson, Clint Bellenger, Georgia K Chaseling, Samuel Chalmers","doi":"10.1123/ijspp.2024-0044","DOIUrl":"10.1123/ijspp.2024-0044","url":null,"abstract":"Objectives: Assess the effect of water dousing on heat strain and performance during self- and fixed-paced exercise in the heat.Design: Crossover, block-randomized controlled trial.Methods: Thirteen trained runners completed a 10-km time trial (TT) and 60-minute fixed-pace run (60% velocity of V˙O2max) in a 30.4 °C, 47.4% relative humidity environment using either water dousing (DOUSE) or no dousing (CON).Results: Ten-kilometer TT performance was faster in DOUSE compared to CON (44:11 [40:48, 47:34] vs 44:38 [41:21, 47:56] min:s; P = .033). Change in core temperature (Tc) was not different between groups during the TT (+0.02 [-0.04, 0.07] °C in DOUSE; P = .853) or fixed-pace run (+0.02 [-0.15, 0.18] °C; P = .848). Change in mean skin temperature was lower in DOUSE during the TT (-1.80 [-2.15, -1.46] °C; P < .001) and fixed-pace run (-1.38 [-1.81, -0.96] °C; P < .001). Heart rate was lower for DOUSE during the fixed-pace run (-3.5 [-6.8, -0.2] beats/min; P = .041) but not during the TT (-0.2 [-2.5, 2.1] beats/min; P = .853). Thermal sensation was lower for DOUSE during the TT (-49.3 [-72.1, -26.1] mm; P < .001) and fixed-pace run (-44.7 [-59.7, -29.6] mm; P < .001). Rating of perceived exertion was not different between groups for the TT (-0.2 [-0.7, 0.3]; P = .390) or fixed-pace run (-0.2 [-0.8, 0.4]; P = .480). Sweat rate was lower for DOUSE for the TT (-0.37 [-0.53, -0.22] L/h; P < .001) and fixed-pace run (-0.37 [-0.48, -0.26] L/h; P < .001).Conclusion: Water dousing improves 10-km TT performance in the heat but does not affect Tc. The positive change in thermal perception (via lower skin temperature) during the TT likely drives this benefit.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1291-1298"},"PeriodicalIF":3.5,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sleep, Fatigue, and Recovery Profiles of the Longest Solo Unsupported One-Way Polar Ski Journey Across Antarctica. 最长的单人无支撑单程极地滑雪穿越南极洲之旅的睡眠、疲劳和恢复情况。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2024-08-30 Print Date: 2024-11-01 DOI: 10.1123/ijspp.2024-0171

Volker Scheer, Harpreet Chandi, Encarna Valero, Mabliny Thuany, Beat Knechtle, Mathias Steinach

{"title":"Sleep, Fatigue, and Recovery Profiles of the Longest Solo Unsupported One-Way Polar Ski Journey Across Antarctica.","authors":"Volker Scheer, Harpreet Chandi, Encarna Valero, Mabliny Thuany, Beat Knechtle, Mathias Steinach","doi":"10.1123/ijspp.2024-0171","DOIUrl":"10.1123/ijspp.2024-0171","url":null,"abstract":"Purpose: Antarctic expeditions are exceptional physiological challenges. Sleep plays a critical role in athletic performance, recovery, and wellness, with sleep disturbances having a negative impact on health and performance.Methods: The authors investigated sleep, fatigue, and recovery profiles of the longest solo unsupported one-way polar ski journey across Antarctica. A 33-year-old woman covered 1484.53 km from Hercules Inlet to the South Pole, finishing at the Ross Ice Shelf, in 70 days and 16 hours. Questionnaires on sleep (Pittsburgh Insomnia Rating Scale and Karolinska Sleepiness Scale), fatigue (Subjective Assessment of Fatigue), recovery (Total Quality Recovery), and wellness were completed at different time points (before, during, and after the expedition).Results: Average daily sleep time was between 4 and 5 hours, increasing to 7 hours for the final part of the expedition. Satisfaction of sleep and lack of energy deteriorated as the expedition progressed, alongside signs of clinical insomnia. Fatigue and muscle soreness increased with increasing milage, with extreme levels and very poor recovery toward the end of the expedition. Despite this, the adventurer continued to perform on extremely high levels. Postexpedition scores returned to baseline, demonstrating the incredible adaptation and ability to recovery. The postexpedition interview showed that prior experience of an Antarctic expedition may have prepared the athlete and made her more resilient for this challenge.Conclusions: The data provide unique insights into Antarctic expeditions and may help us understand the limits of human performance when planning future expeditions of this nature. Female athletes are capable of extreme challenges, breaking established performance boundaries.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"1328-1333"},"PeriodicalIF":3.5,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142107385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0