Pediatric Exercise Science最新文献_第9页

The Influence of Acute Hypoxia on Oxygen Uptake and Muscle Oxygenation Kinetics During Cycling Exercise in Prepubertal Boys. 急性缺氧对青春期前男孩自行车运动中摄氧率和肌肉氧合动力学的影响

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-06-26 Print Date: 2025-08-01 DOI: 10.1123/pes.2023-0089

Max E Weston, Neil Armstrong, Bert Bond, Owen W Tomlinson, Craig A Williams, Alan R Barker

{"title":"The Influence of Acute Hypoxia on Oxygen Uptake and Muscle Oxygenation Kinetics During Cycling Exercise in Prepubertal Boys.","authors":"Max E Weston, Neil Armstrong, Bert Bond, Owen W Tomlinson, Craig A Williams, Alan R Barker","doi":"10.1123/pes.2023-0089","DOIUrl":"10.1123/pes.2023-0089","url":null,"abstract":"Purpose: To examine the effect of normobaric hypoxia on pulmonary oxygen uptake (V˙O2) and muscle oxygenation kinetics during incremental and moderate-intensity exercise in children.Methods: Eight prepubertal boys (9-11 y) performed incremental cycle tests to exhaustion in both normoxia and hypoxia (fraction of inspired O2 of 15%) followed by repeat 6-minute transitions of moderate-intensity exercise in each condition over subsequent visits.Results: Maximal oxygen uptake (V˙O2max) was reduced in hypoxia compared with normoxia (1.69 [0.20] vs 1.87 [0.26] L·min-1, P = .028), although the gas exchange threshold was not altered in absolute terms (P = .33) or relative to V˙O2max (P = .78). During moderate-intensity exercise, the phase II V˙O2 time constant (τ) was increased in hypoxia (18 [9] vs 24 [8] s, P = .025), with deoxyhemoglobin τ unchanged (17 [8] vs 16 [6], P ≥ .28).Conclusions: In prepubertal boys, hypoxia reduced V˙O2max and slowed V˙O2 phase II kinetics during moderate-intensity exercise, despite unchanged deoxyhemoglobin kinetics. These data suggest an oxygen delivery dependence of V˙O2max and moderate-intensity V˙O2 kinetics under conditions of reduced oxygen availability in prepubertal boys.","PeriodicalId":49712,"journal":{"name":"Pediatric Exercise Science","volume":" ","pages":"198-205"},"PeriodicalIF":1.3,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141460315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Response to: Methodological Rigor in Reference Chart Development: A Comment on "Normative Reference Centiles for Sprint Performance in High-Level Youth Soccer Players: The Need to Consider Biological Maturity". 回应：参考图表制定方法的严谨性：关于 "高水平青少年足球运动员短跑成绩的标准参考百分位数：考虑生物成熟度的必要性 "的评论。

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-06-26 Print Date: 2024-08-01 DOI: 10.1123/pes.2024-0085

Ludwig Ruf, Stefan Altmann, Christian Kloss, Sascha Härtel

引用次数: 0

Methodological Rigor in Reference Chart Development: A Comment on "Normative Reference Centiles for Sprint Performance in High-Level Youth Soccer Players: The Need to Consider Biological Maturity". 参考图表制作方法的严谨性：关于 "高水平青少年足球运动员短跑成绩的标准参考百分位数 "的评论：考虑生物成熟度的必要性 "的评论。

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-06-19 Print Date: 2024-08-01 DOI: 10.1123/pes.2024-0057

Lorenzo Lolli

引用次数: 0

Are Young Female Basketball Players Adequately Prepared for a Force-Velocity Jumping and Sprinting Assessment? 年轻女篮球运动员是否为力-速度跳跃和冲刺评估做好了充分准备？

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-05-25 Print Date: 2024-11-01 DOI: 10.1123/pes.2024-0014

Jessica Rial-Vázquez, Iván Nine, María Rúa-Alonso, Juan Fariñas, Roberto Fernández-Seoane, Pedro Jiménez-Reyes, Miguel Fernández-Del-Olmo, Eliseo Iglesias-Soler

{"title":"Are Young Female Basketball Players Adequately Prepared for a Force-Velocity Jumping and Sprinting Assessment?","authors":"Jessica Rial-Vázquez, Iván Nine, María Rúa-Alonso, Juan Fariñas, Roberto Fernández-Seoane, Pedro Jiménez-Reyes, Miguel Fernández-Del-Olmo, Eliseo Iglesias-Soler","doi":"10.1123/pes.2024-0014","DOIUrl":"10.1123/pes.2024-0014","url":null,"abstract":"Purpose: The aim of this study was to explore the interday reliability of mechanical variables obtained from the horizontal and vertical force-velocity (FV) profiles in adolescent female basketball players. If found to be reliable, the associations between FV parameters (theoretical maximal force, velocity, and power), squat jump (SJ) height, 30-m sprint, and change of direction (COD) times were evaluated.Methods: After familiarization, SJ against incremental loads, 30-m sprint, and 505-COD tests were obtained twice in 36 adolescent female basketball players (age = 15.4 [1.2] y).Results: Reliability for vertical FV parameters was unacceptable, whereas 505-COD times and FV horizontal parameters (except for theoretical maximal power) showed a moderate to high reliability. 505-COD time was correlated with FV horizontal parameters (range: r = -.821, -.451), and a large association was observed with both SJ height (r = -.678, -.600) and 30-m sprint time (r = .813, .858).Conclusions: Due to low levels of strength, our athletes were not adequately prepared to obtain a reliable vertical FV profile. Practitioners can expect acceptable reliability of the horizontal FV profile. Given the association between COD performance and SJ height and 30-m sprint time, we encouraged practitioners with limited equipment at their disposal to use COD and/or 30-m sprint tests.","PeriodicalId":49712,"journal":{"name":"Pediatric Exercise Science","volume":" ","pages":"240-247"},"PeriodicalIF":1.3,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141155532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Independent and Combined Associations of Physical Activity and Screen Time With Biomarkers of Inflammation in Children and Adolescents With Overweight/Obesity. 体育锻炼和屏幕时间与超重/肥胖儿童和青少年炎症生物标志物的独立和组合关系。

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-05-23 Print Date: 2025-05-01 DOI: 10.1123/pes.2024-0007

Yijian Ding, Xi Xu

{"title":"Independent and Combined Associations of Physical Activity and Screen Time With Biomarkers of Inflammation in Children and Adolescents With Overweight/Obesity.","authors":"Yijian Ding, Xi Xu","doi":"10.1123/pes.2024-0007","DOIUrl":"10.1123/pes.2024-0007","url":null,"abstract":"Purpose: Inflammation regulation is important for obesity management and prevention of obesity-related diseases. This cross-sectional study aimed to analyze the independent and combined associations of physical activity and screen time with biomarkers of inflammation in children and adolescents with overweight/obesity.Method: A total of 1289 children and adolescents with overweight/obesity were included from the 2015 to 2018 National Health and Nutrition Examination Survey. Multivariable linear regressions were conducted for the association analyses.Results: For the independent associations, a negative dose-dependent relationship was demonstrated between physical activity and inflammatory biomarker high-sensitivity C-reactive protein (hsCRP) in adolescents with overweight/obesity (P < .001) but not children; screen time was not associated with hsCRP in both children and adolescents. No significant association was found between physical activity or screen time with other inflammatory biomarkers. For the combined associations, there was an interaction between physical activity and screen time on hsCRP in adolescents with overweight/obesity (P = .014). In addition, the negative association between physical activity and hsCRP was greater in boys compared with girls and in Hispanic and non-Hispanic Black individuals compared with non-Hispanic White individuals.Conclusion: This study demonstrated a combined association of physical activity and screen time with inflammatory biomarker hsCRP in adolescents with overweight/obesity.","PeriodicalId":49712,"journal":{"name":"Pediatric Exercise Science","volume":" ","pages":"173-181"},"PeriodicalIF":1.3,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141086997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Physical Activity and Motor Skill Development During Early Childhood: Investigating the Role of Parent Support. 幼儿期的体育活动和运动技能发展：研究父母支持的作用》（Physical Activity and Motor Skill Development During the Early Childhood: Investigating the Role of Parent Support.

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-05-11 Print Date: 2025-05-01 DOI: 10.1123/pes.2023-0074

Maeghan E James, Kelly P Arbour-Nicitopoulos, Matthew Kwan, Sara King-Dowling, John Cairney

{"title":"Physical Activity and Motor Skill Development During Early Childhood: Investigating the Role of Parent Support.","authors":"Maeghan E James, Kelly P Arbour-Nicitopoulos, Matthew Kwan, Sara King-Dowling, John Cairney","doi":"10.1123/pes.2023-0074","DOIUrl":"10.1123/pes.2023-0074","url":null,"abstract":"Purpose: This study examined the relationship between parent physical activity (PA) support and children's motor skill development and PA during early childhood and explored the potential moderating effect of child PA and motor skills on these relationships.Methods: Participants (N = 589, 250 girls, meanage = 4.93 [0.59] y) were part of a larger, longitudinal cohort study. Motor skills were assessed using the Movement Assessment Battery for Children-Second Edition. Moderate to vigorous PA (MVPA) was measured using ActiGraph accelerometers. Five items were used to measure parent support frequency (1 = none, 3 = 3-4 times, 5 = daily). Moderation analyses were conducted to examine the moderating effect of MVPA and motor skills on the relationship between parent support and motor skills and MVPA, respectively.Results: Parent support was significantly related to motor skills (B = 14.45, P = .007), and child MVPA significantly moderated this relationship (B = -0.17, P = .021). The relationship between parent support and child MVPA did not reach significance (B = 2.89, P = .051); however, motor skills had a significant moderating effect (B = -0.08, P = .022).Conclusions: These novel findings suggest parent PA support is related to child motor skills and PA during early childhood, but this relationship is context dependent. Child-level characteristics should be considered in future parent PA support research.","PeriodicalId":49712,"journal":{"name":"Pediatric Exercise Science","volume":" ","pages":"118-127"},"PeriodicalIF":1.3,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140908741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Maximal Aerobic Power, Quality of Life, and Ejection Fraction in Survivors of Childhood Cancer Treated with Anthracyclines. 接受蒽环类药物治疗的儿童癌症幸存者的最大有氧运动能力、生活质量和射血分数。

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-05-07 Print Date: 2025-05-01 DOI: 10.1123/pes.2023-0161

Maritza Martínez Tagle, Pavel Loeza Magaña, Alma Edith Benito Reséndiz, Iliana Lucatero Lecona, Farina Esther Arreguín González, Alberto Chávez Delgado

{"title":"Maximal Aerobic Power, Quality of Life, and Ejection Fraction in Survivors of Childhood Cancer Treated with Anthracyclines.","authors":"Maritza Martínez Tagle, Pavel Loeza Magaña, Alma Edith Benito Reséndiz, Iliana Lucatero Lecona, Farina Esther Arreguín González, Alberto Chávez Delgado","doi":"10.1123/pes.2023-0161","DOIUrl":"10.1123/pes.2023-0161","url":null,"abstract":"Background: Anthracycline-induced cardiotoxicity is a frequent complication that can occur at any stage of treatment, even in survivors.Objective: To determine maximum aerobic power, quality of life, and left ventricular ejection fraction in childhood cancer survivors treated with anthracyclines.Design: Cross-sectional, observational study.Methods: The left ventricular ejection fraction was obtained from the transthoracic echocardiogram report in the medical records. Each patient underwent a 6-minute walk test, assessment of maximum aerobic power on a cycle ergometer, and evaluation of perceived exertion using the EPInfant scale, and finally, their quality of life was evaluated using the pediatric quality of life inventory model.Results: A total of 12 patients were studied, with an average of 16.2 years of age. All patients exhibited a left ventricular ejection fraction >60%, the mean distance covered in the 6-minute walk test was 516.7 m, and the mean of the maximum aerobic power was 70 W. Low quality of life scores were obtained in the physical and psychosocial aspects. In the Pearson test, a weak correlation without statistical significance was found between all the variables studied.Conclusions: Simultaneously with the detection of cardiotoxicity in childhood cancer survivors, it is pertinent to perform physical evaluations as physical condition and cardiotoxicity seem to be issues that are not necessarily dependent.","PeriodicalId":49712,"journal":{"name":"Pediatric Exercise Science","volume":" ","pages":"190-193"},"PeriodicalIF":1.3,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Long-Term Alterations in Pulmonary V˙O2 and Muscle Deoxygenation On-Kinetics During Heavy-Intensity Exercise in Competitive Youth Cyclists: A Cohort Study. 青少年自行车竞技运动员在大强度运动时肺部 V˙O2和肌肉脱氧动力学的长期变化：一项队列研究。

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-05-07 Print Date: 2024-11-01 DOI: 10.1123/pes.2023-0110

Matthias Hovorka, Bernhard Prinz, Dieter Simon, Manfred Zöger, Clemens Rumpl, Alfred Nimmerichter

{"title":"Long-Term Alterations in Pulmonary V˙O2 and Muscle Deoxygenation On-Kinetics During Heavy-Intensity Exercise in Competitive Youth Cyclists: A Cohort Study.","authors":"Matthias Hovorka, Bernhard Prinz, Dieter Simon, Manfred Zöger, Clemens Rumpl, Alfred Nimmerichter","doi":"10.1123/pes.2023-0110","DOIUrl":"10.1123/pes.2023-0110","url":null,"abstract":"Purpose: The aim of this investigation was to assess alterations of pulmonary oxygen uptake (V˙O2) and muscle deoxygenation on-kinetics during heavy-intensity cycling in youth cyclists over a period of 15 months.Methods: Eleven cyclists (initial age, 14.3 [1.6] y; peak V˙O2, 62.2 [4.5] mL·min-1·kg-1) visited the laboratory twice on 3 occasions within 15 months. Participants performed an incremental ramp exercise test and a constant workrate test within the heavy-intensity domain during the first visit and second visit, respectively. Subsequently, parameter estimates of the V˙O2 and muscle deoxygenation on-kinetics were determined with mono-exponential models.Results: The V˙O2 phase II time constant decreased from occasion 1 (34 [4] s) to occasion 2 (30 [4] s, P = .005) and 3 (28 [4] s, P = .010). However, no significant alteration was observed between occasions 2 and 3 (P = .565). The V˙O2 slow component amplitude either expressed in absolute values (ie, L·min-1) or relative to end exercise V˙O2 (ie, %) showed no significant changes throughout the study (P = .972 and .996). Furthermore, the muscle deoxygenation on-kinetic mean response time showed no significant changes throughout the study (18 [8], 18 [3], and 16 [5] s for occasions 1, 2, and 3, respectively; P = .279).Conclusion: These results indicate proportional enhancements of local muscle oxygen distribution and utilization, which both contributed to the speeding of the V˙O2 on-kinetics herein.","PeriodicalId":49712,"journal":{"name":"Pediatric Exercise Science","volume":" ","pages":"295-301"},"PeriodicalIF":1.3,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Parental Travel Behaviors and Children's Independent Mobility: A MultiSite Study. 父母的出行行为与儿童的独立行动能力：多站点研究。

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-05-07 Print Date: 2025-05-01 DOI: 10.1123/pes.2023-0064

Victoria Hecker, Sebastien Blanchette, Guy Faulkner, Negin A Riazi, Mark S Tremblay, François Trudeau, Richard Larouche

{"title":"Parental Travel Behaviors and Children's Independent Mobility: A MultiSite Study.","authors":"Victoria Hecker, Sebastien Blanchette, Guy Faulkner, Negin A Riazi, Mark S Tremblay, François Trudeau, Richard Larouche","doi":"10.1123/pes.2023-0064","DOIUrl":"10.1123/pes.2023-0064","url":null,"abstract":"Purpose: Children who are allowed greater independent mobility (IM) are more physically active. This study investigated associations between parents' current travel mode to work, their own IM and school travel mode as a child, and their child's IM.Methods: Children in grades 4 to 6 (n = 1699) were recruited from urban, suburban, and rural schools in Vancouver, Ottawa, and Trois-Rivières. Parents reported their current travel mode to work, IM, and school travel mode as a child. Children self-reported their IM using Hillman's 6 mobility licenses. Multiple imputation was performed to replace missing data. Gender-stratified generalized linear mixed models were adjusted for child age, parent gender, urbanization, and socioeconomic status.Results: The older a parent was allowed to travel alone as a child, the less IM their child had (boys: β = -0.09, 95% confidence interval [CI], -0.13 to -0.04; girls: β = -0.09, 95% CI, -0.13 to -0.06). Girls whose parents biked to work (β = 0.45, 95% CI, 0.06-0.83) or lived in Trois-Rivières versus other sites (β = 0.82, 95% CI, -0.43 to 1.21) had higher IM. IM increased with each year of age (boys: β = 0.46, CI, 0.34-0.58; girls: β = 0.38, 95% CI, 0.28-0.48).Conclusion: Parents who experienced IM later may be more restrictive of their child's IM. This may help explain the intergenerational decline in children's IM.","PeriodicalId":49712,"journal":{"name":"Pediatric Exercise Science","volume":" ","pages":"112-117"},"PeriodicalIF":1.3,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A 5-Week Guided Active Play Program Modulates Skin Microvascular Reactivity in Healthy Children. 为期五周的主动游戏指导计划可调节健康儿童的皮肤微血管反应。

IF 1.3 4区医学

Pediatric Exercise Science Pub Date : 2024-04-29 Print Date: 2025-05-01 DOI: 10.1123/pes.2023-0138

Asal Moghaddaszadeh, Emilie Roudier, Heather Edgell, Agnes Vinet, Angelo N Belcastro

{"title":"A 5-Week Guided Active Play Program Modulates Skin Microvascular Reactivity in Healthy Children.","authors":"Asal Moghaddaszadeh, Emilie Roudier, Heather Edgell, Agnes Vinet, Angelo N Belcastro","doi":"10.1123/pes.2023-0138","DOIUrl":"10.1123/pes.2023-0138","url":null,"abstract":"Purpose: Children's poor levels of physical activity (PA) participation and early-onset vascular aging are identified as global health challenges. Children's guided activity play (GAP)-based PA programs have emerged as effective strategies to improve cardiovascular risk factors and health-related fitness. This study proposes to investigate whether GAP improves children's cutaneous microvascular reactivity and health-related fitness.Methods: Children's (n = 18; 9.8 [1.5] y) PA during a 5-week (4 d/wk; 1 h/d) GAP program was assessed (accelerometry) with preassessments and postassessments for anthropometric, musculoskeletal fitness, blood pressure, estimated aerobic power, and cutaneous microvascular reactivity.Results: PA averaged 556 (132) kcal·week-1 at 34.7% (7.5%) time at moderate to vigorous intensity. Resting heart rate (-9.5%) and diastolic blood pressure (-7.8%) were reduced without changes in health-related fitness indices. Cutaneous microvascular reactivity to sodium nitroprusside iontophoresis increased the average perfusion (+36.8%), average cutaneous vascular conductance (+30%), the area under the curve (+28.8%), and a faster rise phase (+40%) of perfusion (quadratic modeling; P ≤ .05). Chi-square and crosstabulation analysis revealed significant association between children's PA levels and sodium nitroprusside average perfusion levels, where children with PA levels ≥205.1 kcal.55 minute-1 were overrepresented in the medium/high levels of sodium nitroprusside perfusion.Conclusion: A 5-week GAP modified the microvascular reactivity in children without changes in body mass, musculoskeletal fitness, or estimated aerobic power.","PeriodicalId":49712,"journal":{"name":"Pediatric Exercise Science","volume":" ","pages":"128-137"},"PeriodicalIF":1.3,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140860980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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