Journal of Exercise Science & Fitness最新文献_第5页

Accelerometer-measured sedentary volume and bouts during the segmented school day among Chinese school students 用加速度计测量中国中小学生在分段上学日的久坐量和久坐次数

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2024-02-20 DOI: 10.1016/j.jesf.2024.02.003

Zhen-wen Xie, Li-juan Wang, Huan Chen, Guo Liang, Xing-long Yang

Background

This study examined sedentary volume and bouts of Chinese primary and middle school students during different segments of a school day and determined whether gender and school level are associated with their sedentary volume and bouts.

Methods

A total of 472 students participated in this study. Accelerometers were used to measure the sedentary volume and sedentary bouts of different durations (i.e., 1–4 min, 5–9 min and ≥10 min) during all segments.

Results

The participants spent the majority of their time in sitting (61.7%) and sitting bouts of ≥10 min (37.3%). They spent higher percentages of time in sitting during regular classes (76.7%) and out-of-school time (54.5%), and lower during physical education (PE) classes (32.2%), lunch break (35.4%) and recess (38.0%). The highest proportions of time were in sedentary bouts of ≥10 min during regular classes (50.2%), out-of-school time (28.0%) and lunch break (18.8%), while the greatest percentages occurred in sitting bouts of 1–4 min during PE class (16.4%) and recess (18.6%). Girls and middle school students had higher percentages of sedentary volume than boys and primary school students during most segments. They spent greater proportions of time in sitting bouts of ≥10 min during regular classes, lunch break, and out-of-school time, and higher proportions in sedentary bouts of 1–4 min than boys and primary students during PE classes.

Conclusion

Regular class and out-of-school time were identified as key segments for reducing sedentary volume and breaking up prolonged sitting. Interventions on interrupting prolonged sitting during lunch break should also be explored. Girls and middle school students should receive more attention in future interventions.

本研究调查了中国中小学生在一天中不同时段的久坐量和久坐时间，并确定性别和学校级别是否与他们的久坐量和久坐时间有关。共有 472 名学生参与了这项研究。研究人员使用加速度计测量了所有时段的久坐量和不同持续时间（即 1-4 分钟、5-9 分钟和≥10 分钟）的久坐间隔。参与者的大部分时间是坐着（61.7%）和坐着时间≥10 分钟（37.3%）。他们在正常上课（76.7%）和课外活动（54.5%）时坐着的时间比例较高，而在体育课（32.2%）、午休（35.4%）和课间休息（38.0%）时坐着的时间比例较低。在普通课（50.2%）、校外时间（28.0%）和午休时间（18.8%）久坐的时间比例最高，而在体育课（16.4%）和大课间（18.6%）久坐的时间比例最高，为 1-4 分钟。与男生和小学生相比，女生和初中生在大多数时间段的久坐比例更高。与男生和小学生相比，女生和初中生在体育课、午休和课外活动时坐着的时间≥10 分钟的比例更高，而在体育课上坐着的时间为 1-4 分钟的比例更高。常规课和课外时间被认为是减少久坐量和中断久坐的关键环节。还应探索在午休时间中断久坐的干预措施。今后的干预措施应更多地关注女生和初中生。

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引用次数: 0

Acute effects of sodium citrate supplementation on competitive performance and lactate level of elite fitness challenge athletes: A crossover, placebo-controlled, double-blind study 补充柠檬酸钠对精英健身挑战运动员竞技表现和乳酸水平的急性影响：交叉、安慰剂对照、双盲研究

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2024-02-05 DOI: 10.1016/j.jesf.2024.02.001

Magshoud Nabilpour , Amira Zouita , Jerry Mayhew , Gholam Rasul Mohammad Rahimi , Yaser Alikhajeh , Morteza Taheri , Khadijeh Irandoust , Leila Youzbashi , Urs Granacher , Hassane Zouhal

Purpose

The performance of sodium citrate has been investigated in high-intensity exercises, but fewer studies have addressed the role of citrate in weight-bearing exercises.

Methods

Twenty fitness challenge athletes, aged 24–32 years, volunteered to participate in this crossover, placebo-controlled, double-blind study. Initially, ten athletes were given a placebo and asked to complete a fitness challenge (i.e., chin-ups, squat jumps, dips, walking lunges, sit-ups, and burpees-devil press). Another ten athletes were supplemented with sodium citrate 0.5 g/kg body mass supplements 3 h prior to performing the fitness challenges. The same procedures were completed two days later with the supplement and placebo dextrose groups switched in a cross-over design. Athletes and assessors were blinded for the experimental condition (placebo vs. verum). Lactate levels were measured 5 min after exercise. The athletes' performance on each item of the fitness challenge as well as their lactate levels, were compared. Differences between the means of the measured variables were contrasted using a dependent t-test.

Results

Supplementing sodium citrate substantially improved athletes' performance in all six fitness challenge items (p < 0.05, 0.69<Cohen's d < 2.52, moderate to large). In addition, lactate levels registered after the fitness challenge were lower in the citrate sodium supplementation vs. placebo condition (p = 0.001, Cohen's d = 0.63, moderate).

Conclusion

Acute sodium citrate supplementation may help fitness challengers postpone muscular fatigue and increase performance, potentially via the prevention of lactate accumulation.

目的对柠檬酸钠在高强度运动中的表现进行了研究，但有关柠檬酸钠在负重运动中的作用的研究较少。方法 20 名 24-32 岁的健身挑战运动员自愿参加了这项交叉、安慰剂对照、双盲研究。首先，给 10 名运动员服用安慰剂，并要求他们完成一项健身挑战（即引体向上、深蹲跳、下蹲、徒步长跑、仰卧起坐和 burpees-devil press）。另外 10 名运动员在进行健身挑战前 3 小时补充柠檬酸钠。两天后，以交叉设计的方式将补充剂组和安慰剂组互换，完成同样的程序。运动员和评估人员对实验条件（安慰剂与verum）进行盲测。运动后 5 分钟测量乳酸水平。比较运动员在体能挑战赛各项目上的表现以及他们的乳酸水平。结果补充柠檬酸钠大大提高了运动员在所有六个体能挑战项目中的表现（p <0.05，0.69<Cohen's d <2.52，中到大）。此外，补充柠檬酸钠与安慰剂相比，健身挑战后记录的乳酸水平更低（p = 0.001，Cohen's d = 0.63，中度）。

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引用次数: 0

Effectiveness of tele-exercise training on physical fitness, functional capacity, and health-related quality of life in non-hospitalized individuals with COVID-19: The COFIT-HK study 远程运动训练对 COVID-19 非住院患者的体能、功能和健康相关生活质量的影响：COFIT-HK 研究

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2024-02-01 DOI: 10.1016/j.jesf.2024.01.003

Eric Tsz-Chun Poon , Fenghua Sun , Andy Choi-Yeung Tse , Jaclyn Hei Tsang , Aaron Yiu-Huen Chung , Yannis Yuet-Yan Lai , Sam Wing-Sum Wong

Background

The use of tele-exercise programs as an option for post-COVID-19 rehabilitation has been suggested, but its effectiveness in non-hospitalized individuals is not well understood.

Objective

This study aimed to determine the effectiveness of an 8-week tele-exercise training program (COFIT-HK) on physical fitness, functional capacity, and health-related quality of life (HRQoL) in non-hospitalized post-COVID-19 individuals.

Methods

Forty-one non-hospitalized individuals (age:47.4 ± 7.8 yrs) who had COVID-19 history were divided into two groups: the tele-exercise training group (TELE; n = 21) and the non-intervention control group (CON; n = 20). TELE engaged in online supervised multicomponent low-to-moderate intensity exercise training (including respiratory muscle, aerobic, and resistance training) three times per week, whereas CON received standardized educational leaflets based on World Health Organization (WHO) guidelines for post-COVID-19-related illness rehabilitation only. Various components of physical fitness, functional capacity, and HRQoL were assessed at baseline and after the 8-week intervention.

Results

TELE showed significant improvements in handgrip strength, arm flexibility, functional lower extremity endurance, and HRQoL after the 8-week intervention (all p < 0.05, ES = 0.50–1.10). When comparing the groups, TELE demonstrated significantly greater improvements in both the physical and mental component summary scores of HRQoL compared to CON (both p < 0.05). Other outcomes did not reveal significant group differences.

Conclusion

Our tele-exercise intervention was effective in improving physical fitness, functional capacity and HRQoL among non-hospitalized post-COVID-19 individuals. Further research is needed to explore the utility and limitations of tele-exercise programs for post-COVID-19 rehabilitation and beyond.

本研究旨在确定为期 8 周的远程运动训练计划（COFIT-HK）对 COVID-19 后非住院患者的体能、功能和健康相关生活质量（HRQoL）的影响。方法将 41 名有 COVID-19 病史的非住院患者（年龄：47.4 ± 7.8 岁）分为两组：远程锻炼训练组（TELE；n = 21）和非干预对照组（CON；n = 20）。远程运动训练组每周进行三次在线指导的多成分中低强度运动训练（包括呼吸肌、有氧运动和阻力训练），而对照组只接受基于世界卫生组织（WHO）COVID-19相关疾病后康复指南的标准化教育传单。结果经过 8 周的干预后，TELE 在手握力量、手臂柔韧性、下肢功能耐力和 HRQoL 方面均有显著改善（均为 p < 0.05，ES = 0.50-1.10）。在对各组进行比较时，TELE 在 HRQoL 的身体和精神部分的总分上都比 CON 有明显的提高（均为 p < 0.05）。结论：我们的远程锻炼干预能有效改善 19 岁后非住院患者的体能、功能和 HRQoL。还需要进一步研究探讨远程锻炼计划在 COVID-19 后康复及其他方面的实用性和局限性。

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引用次数: 0

The effect of aquatic training and vitamin D3 supplementation on bone metabolism in postmenopausal obese women 水上训练和维生素 D3 补充剂对绝经后肥胖妇女骨代谢的影响

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2024-01-12 DOI: 10.1016/j.jesf.2024.01.002

Foroozandeh Zaravar , Gholamhossein Tamaddon , Leila Zaravar , Maryam Koushkie Jahromi

Purpose

Despite prevalence of studies indicating the positive effect of land-based exercise on bone metabolism, there are limited findings regarding the effect of aquatic exercise. The present study aimed to evaluate the effects of aquatic training and vitamin D3 supplementation on femur bone mineral density (BMD), serum 25(OH)D, and parathyroid hormone (PTH) in postmenopausal obese women with vitamin D insufficiency.

Methods

40 postmenopausal obese women were randomly divided into four groups of aquatic training + vitamin D3 intake group; (ATD), aquatic training with placebo intake group (AT), vitamin D3 intake group (D), and control group with placebo intake (CON). AT groups performed aerobic aquatic exercises for 8 weeks. Vitamin D3 supplementation groups consumed oral dose of 4000 IU/d for 8 weeks.

Results

The femur BMD was significantly higher in the ATD than the AT and D and CON groups; in AT it was higher than the D and CON groups. Serum 25(OH)D level in the ATD was more than AT and CON, and in the D was more than the CON and AT. PTH in the ATD group was lower compared to AT, D, and CON groups. PTH was lower in the AT and D compared to the CON.

Conclusion

In postmenopausal obese women with vitamin D insufficiency or deficiency, combining vitamin D supplementation and aquatic training was the most effective method for improving bone metabolism; Vitamin D supplementation (alone) was not sufficient to affect some of bone metabolism indices; Aquatic training could not improve serum vitamin D. By priority, ATD, AT, and D indicated better bone related metabolism indices.

目的尽管有大量研究表明陆上运动对骨代谢有积极影响，但有关水中运动效果的研究结果却很有限。本研究旨在评估水上训练和维生素 D3 补充剂对维生素 D 不足的绝经后肥胖女性股骨骨矿物质密度（BMD）、血清 25(OH)D 和甲状旁腺激素（PTH）的影响。方法将 40 名绝经后肥胖女性随机分为四组，即水上训练 + 维生素 D3 摄入组（ATD）、水上训练与安慰剂摄入组（AT）、维生素 D3 摄入组（D）和安慰剂摄入对照组（CON）。AT组进行为期8周的有氧水上运动。结果 ATD 组的股骨 BMD 明显高于 AT 组、D 组和 CON 组；AT 组的股骨 BMD 则高于 D 组和 CON 组。ATD组的血清25（OH）D水平高于AT组和CON组，D组高于CON组和AT组。与 AT、D 和 CON 组相比，ATD 组的 PTH 较低。结论对于维生素 D 不足或缺乏的绝经后肥胖妇女，结合补充维生素 D 和水上训练是改善骨代谢的最有效方法；补充维生素 D（单独）不足以影响某些骨代谢指标；水上训练不能改善血清维生素 D。

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引用次数: 0

The effects of 6-week home-based static stretching, dynamic stretching, or eccentric exercise interventions on muscle-tendon properties and functional performance in older women 为期 6 周的家庭静态拉伸、动态拉伸或偏心运动干预对老年妇女肌肉肌腱特性和功能表现的影响

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2024-01-04 DOI: 10.1016/j.jesf.2024.01.001

Juntip Namsawang , Wirasinee Srijunto , Phurichaya Werasirirat , Audrius Snieckus , Kristina Bradauskiene , Sigitas Kamandulis , Pornpimol Muanjai

Background

Joint inflexibility is acknowledged as a significant contributor to functional limitations in the older adult, with lengthening-type exercises identified as a potential remedial approach. Nevertheless, the responses to eccentric exercise in female older adults have not been extensively studied especially in home-based environment. Here, we aimed to assess the effectiveness of home-based static stretching (ST), dynamic closed-chain stretching (DCS), or eccentric exercise (ECC) interventions on flexibility, musculotendinous architecture, and functional ability in healthy older women.

Methods

We randomly assigned 51 healthy older women (age 65.9 ± 3.4 years) to one of three interventional exercise groups: DCS (N = 17), ECC (N = 17), or ST (N = 17). The training was performed 3 times a week for 6 weeks. The participants’ musculotendinous stiffness, fascicle length, eccentric strength, and functional capacities were measured before the intervention, after 6 weeks of exercise, and at a 1-month follow-up.

Results

The results showed that all three interventions improved hamstring flexibility and passive ankle dorsiflexion (p < 0.001), with increased biceps femoris and medial gastrocnemius fascicle length (p < 0.01). However, there was no significant change in musculotendinous stiffness. The ECC intervention produced a greater improvement in knee flexor and calf eccentric peak torque (p < 0.05), and gait speed (p = 0.024) than the other two interventions. The changes in flexibility and knee flexor strength remained for up to 4 weeks after detraining.

Conclusion

In conclusion, the present study suggests that home-based ECC may be more beneficial in enhancing physical capacities in older women compared with either DCS or SS interventions.

背景关节不灵活被认为是导致老年人功能受限的一个重要因素，而拉伸类运动被认为是一种潜在的补救方法。然而，关于女性老年人对偏心运动的反应，尤其是在家庭环境中的反应，还没有广泛的研究。在此，我们旨在评估基于家庭的静态拉伸（ST）、动态闭链拉伸（DCS）或偏心运动（ECC）干预对健康老年女性的柔韧性、肌肉腱膜结构和功能能力的影响：DCS（17 人）、ECC（17 人）或 ST（17 人）。训练每周 3 次，持续 6 周。结果表明，三种干预方法都改善了腿筋柔韧性和踝关节被动外展（p <0.001），增加了股二头肌和腓肠肌内侧筋膜长度（p <0.01）。但是，肌肉腱膜僵硬度没有明显变化。与其他两种干预方法相比，ECC干预方法对膝关节屈肌和小腿偏心峰值扭矩（p < 0.05）以及步速（p = 0.024）的改善更大。总之，本研究表明，与 DCS 或 SS 干预相比，在家进行的 ECC 可能更有利于提高老年妇女的体能。

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引用次数: 0

Physical activity of children and adolescents with disabilities in Poland - First Para Report Card 波兰残疾儿童和青少年的体育活动--第一份准成绩单

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2023-12-30 DOI: 10.1016/j.jesf.2023.12.007

Urbański Piotr Kazimierz , Zembura Paweł , Ng Kwok , Korcz Agata

Background

This study provides a comprehensive evaluation of the Polish Para Report Card, which assesses various aspects of physical activity (PA) and related indicators among Polish children and adolescents with disabilities. This area has been under-researched, especially in the Polish context.

Methods

The research methodology included systematic literature searches from 2014 to 2022, utilizing databases such as PubMed, EBSCO, and Google Scholar. This was complemented by outreach to governmental institutions for additional reports and data. The search strategy was aligned with the Global Matrix methodology and aimed at evaluating ten distinct indicators: Overall PA, Organized Sport and PA, Active Play, Active Transportation, Sedentary Behavior, Family and Peers, School, Community and Environment, Government.

Results

Grades were assigned to three of ten indicators. The Overall PA, Sedentary Behavior, and Government indicators each received a D-grade.

Conclusions

The study reveals the need for an extensive system to monitor PA among Polish children and adolescents with disabilities, and the development of effective strategies to enhance PA in this group. Children with disabilities in Poland are under-researched in the area of PA compared to their their counterparts without disabilities.

背景对波兰残疾儿童和青少年的体育活动（PA）缺乏了解。本研究评估了波兰残疾儿童和青少年体育锻炼报告单。方法从 2014 年到 2022 年，我们在 PubMed、EBSCO 和 Google Scholar 上进行了系统的文献检索，并与各政府机构联系，以获取更多报告和数据。与全球矩阵方法相关的关键词为搜索提供了指导，旨在评估十项不同的指标：结果对十项指标中的三项进行了评分。结论这项研究表明，有必要建立一个广泛的系统来监测波兰残疾儿童和青少年的体育锻炼情况，并制定有效的策略来提高这一群体的体育锻炼水平。与健全儿童相比，波兰残疾儿童在锻炼方面的研究不足。

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引用次数: 0

Effects of the special olympics unified sports soccer training program on executive function in adolescents with intellectual disabilities 特奥会统一运动足球训练计划对智障青少年执行功能的影响

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2023-12-28 DOI: 10.1016/j.jesf.2023.12.006

Rang Xiao , Ping Xu , Xue-Lian Liang , Zhi Zou , Jiu-Gen Zhong , Ming-Qiang Xiang , Xiao-Hui Hou

引用次数: 0

Comparative efficacy of concurrent training types on lower limb strength and muscular hypertrophy: A systematic review and network meta-analysis 同期训练类型对下肢力量和肌肉肥大的功效比较：系统回顾和网络荟萃分析

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2023-12-19 DOI: 10.1016/j.jesf.2023.12.005

Yonghui Chen, Xinmiao Feng, Lanmin Huang, Keli Wang, Jing Mi

Objective

This study aims to compare, through quantitative analysis, the effectiveness of different endurance training types on increasing lower limb strength and muscle cross-sectional area (MCSA) in concurrent training.

Methods

This systematic literature search was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) [PROSPERO ID: CRD42023396886]. Web of Science, SportDiscuss, Pubmed, Cochrane, and Scopus were systematically searched from their inception date to October 20, 2023.

Results

A total of 40 studies (841 participants) were included in this meta-analysis. MCSA analysis showed that, compared to resistance training alone, concurrent high-intensity interval running training and resistance training and concurrent moderate-intensity continuous cycling training and resistance training were more effective (SMD = 0.15, 95% CI = −0.46 to 0.76, and SMD = 0.07, 95% CI = −0.24 to 0.38 respectively), while other modalities of concurrent training not. Lower body maximal strength analysis showed that all modalities of concurrent training were inferior to resistance training alone, but concurrent high-intensity interval training and resistance training showed an advantage in four different concurrent training modalities (SMD = −0.08, 95% CI = −0.25 to 0.08). For explosive strength, only concurrent high-intensity interval training and resistance training was superior to resistance training (SMD = 0.06, 95% CI = −0.21 to 0.33).

Conclusion

Different endurance training types have an impact on the effectiveness of concurrent training, particularly on lower limb strength. Adopting high-intensity interval running as the endurance training type in concurrent training can effectively minimize the adverse effects on lower limb strength and MCSA.

本研究旨在通过定量分析，比较不同耐力训练类型在同步训练中增加下肢力量和肌肉横截面积（MCSA）的效果。方法本系统文献检索是根据系统综述和元分析首选报告项目（PRISMA）[PROSPERO ID：CRD42023396886]进行的。对 Web of Science、SportDiscuss、Pubmed、Cochrane 和 Scopus 进行了系统检索，检索时间从开始检索之日起至 2023 年 10 月 20 日。MCSA分析表明，与单独的阻力训练相比，同时进行高强度间歇跑步训练和阻力训练以及同时进行中等强度连续骑自行车训练和阻力训练更有效（分别为SMD = 0.15，95% CI = -0.46至0.76和SMD = 0.07，95% CI = -0.24至0.38），而其他方式的同时训练则无效。下半身最大力量分析表明，所有同步训练模式都不如单独的阻力训练，但在四种不同的同步训练模式中，高强度间歇训练和阻力训练的同步训练显示出优势（SMD = -0.08，95% CI = -0.25至0.08）。在爆发力方面，只有高强度间歇训练和阻力训练同时进行的效果优于阻力训练（SMD = 0.06，95% CI = -0.21至0.33）。结论不同的耐力训练类型会影响同期训练的效果，尤其是对下肢力量的影响。在同期训练中采用高强度间歇跑作为耐力训练类型可以有效地减少对下肢力量和 MCSA 的不利影响。

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引用次数: 0

A comparison of three different work to rest periods during intermittent sprint training on maintaining sprint effort performance 间歇性短跑训练中三种不同的做功与休息时间对保持短跑成绩的影响比较

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2023-12-11 DOI: 10.1016/j.jesf.2023.12.004

Timothy Rogers , Nicholas Gill , Christopher M. Beaven

Background/objectives

Team sports are characterised by repeated maximal intensity bursts of activity, requiring significant energy contribution from the phosphagen pathways. The objective of this study was to evaluate the impact of different rest periods on repeated maximal intensity efforts.

Methods

The effect of three different recovery periods (60 s, 90 s and 120 s) during a 10 × six-seconds intermittent sprint training protocol performed on a cycle ergometer was investigated. Thirteen part-time female athletes from two sports, Rugby Sevens and Netball competing for their state participated in the study. Peak Power (PPO), Mean Power (MPO), “total work” in the form of calorie expenditure, performance decrement, repetitions over 95% PPO, blood lactate, and RPE were recorded.

Results

There was a significant effect of condition on MPO and calorie expenditure (p < 0.050). MPO was significantly lower for 60 s compared to 90 s (710.4 vs 734.4 W, ES = 0.27–0.42) and 120 s (710.4 vs 743.3 W, ES = 0.36–0.47). Calorie expenditure was significantly lower for 60 s compared to 90 s (4.41 vs 4.56 cal, ES = 0.25–0.46) and 120 s (4.41 vs 4.59 cal, ES = 0.40–0.48). There was a significant effect of time (60 s 11.7, 90 s 11.1.120 s 10.9 mmol/L, p < 0.010) but not condition (p = 0.617) for blood lactate accumulation, and a significant difference in session RPE between 60 and both 90 s and 120 s (60 s 15.5, 90 s 14.2. p = 0.034 120 s 13.9, p = 0.039).

Conclusion

Shorter recovery durations resulted in decreased mean power and calorie expenditure, but higher RPE when compared to longer recovery periods. All three recovery periods may have fallen between the fast and slow phases of PCr resynthesis of approximately 20 and 180 s resulting in partial but not complete recovery. Total training time should be a consideration when determining what protocol to implement.

背景/目的团队运动的特点是反复进行最大强度的爆发活动，需要磷酸原途径提供大量能量。本研究的目的是评估不同休息时间对重复最大强度活动的影响。方法研究了在自行车测力计上进行 10 × 6 秒间歇冲刺训练方案期间，三种不同恢复时间（60 秒、90 秒和 120 秒）的影响。来自七人制橄榄球和网式橄榄球两个项目的 13 名兼职女运动员参加了这项研究。研究记录了峰值功率（PPO）、平均功率（MPO）、以卡路里消耗为形式的 "总功"、成绩下降、超过 95% PPO 的重复次数、血乳酸和 RPE。与 90 秒（710.4 vs 734.4 W，ES = 0.27-0.42）和 120 秒（710.4 vs 743.3 W，ES = 0.36-0.47）相比，60 秒的 MPO 明显较低。与 90 秒（4.41 卡路里对 4.56 卡路里，ES = 0.25-0.46）和 120 秒（4.41 卡路里对 4.59 卡路里，ES = 0.40-0.48）相比，60 秒的热量消耗明显较低。时间（60 秒 11.7，90 秒 11.1.120 秒 10.9 毫摩尔/升，p < 0.010）对血乳酸累积有显著影响，但条件（p = 0.617）对血乳酸累积无显著影响，60 秒与 90 秒和 120 秒之间的会话 RPE 有显著差异（60 秒 15.5，90 秒 14.2。结论与较长的恢复期相比，较短的恢复期会导致平均功率和卡路里消耗减少，但 RPE 却较高。所有三个恢复期都可能介于 PCr 重新合成的快慢阶段（约 20 秒和 180 秒）之间，导致部分恢复而非完全恢复。在确定实施何种方案时，应考虑总训练时间。

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引用次数: 0

Results from Ireland North and South’s 2022 report card on physical activity for children and adolescents 爱尔兰北部和南部 2022 年儿童和青少年体育活动成绩单的结果

IF 2.8 2区医学 Q2 SPORT SCIENCES

Journal of Exercise Science & Fitness

Pub Date : 2023-12-09 DOI: 10.1016/j.jesf.2023.12.003

Angela Carlin , Sinead Connolly , Tamsyn Redpath , Sarajane Belton , Tara Coppinger , Conor Cunningham , Alan Donnelly , Kieran Dowd , Deirdre Harrington , Elaine Murtagh , Kwok Ng , Wesley O'Brien , Lauren Rodriguez , Catherine Woods , Helen McAvoy , Marie Murphy

Background

The Ireland North and South Report Card on Physical Activity (PA) for Children and Adolescents aims to monitor progress in PA participation across a range of internationally established indicators.

Methods

Data were collated for 11 indicators and graded following the harmonised Active Healthy Kids Global Alliance report card process. Six representative studies (sample size range n = 898 to n = 15,557) were primarily used in the grading, with many indicators supplemented with additional studies and reports. Data collected since the implementation of COVID-19 public health measures in March 2020 were excluded.

Results

Grades were awarded as follows: ‘Overall physical activity’, C-; ‘Organised Sport and Physical Activity’, C; ‘Active Play’, INC; ‘Sedentary Behaviours’, C-; ‘Physical Fitness’, INC; ‘Family and Peers’, D+; ‘School’, C-; ‘Physical Education’, D; ‘Community and Environment’, B+ and ‘Government’, B. Separate grades were awarded for disability as follows; ‘Overall physical activity’, F; ‘Organised Sport and Physical Activity’, D; ‘Sedentary Behaviours’, C-; ‘Family and Peers’, C; ‘School’, C- and ‘Government’, B. ‘Active Play’, ‘Physical Fitness’, ‘Physical Education’ and ‘Community and Environment’ were all graded INC for disability. Since the last report card in 2016, four grades remained the same, three increased (‘Overall physical activity’, ‘School’ and ‘Physical Education’) and two (‘Family and Peers,’ and ‘Government’) were awarded grades for the first time.

Conclusion

Grades specific to children and adolescents with disability were generally lower for each indicator. While small improvements have been shown across a few indicators, PA levels remain low across many indicators for children and adolescents.

背景爱尔兰南北儿童和青少年体育锻炼（PA）成绩单旨在通过一系列国际公认的指标来监测参与体育锻炼的进展情况。方法对 11 项指标的数据进行了整理，并按照 "积极健康儿童全球联盟 "的统一成绩单流程进行了分级。分级时主要使用了六项代表性研究（样本量从 n = 898 到 n = 15,557 不等），许多指标还使用了其他研究和报告作为补充。自 2020 年 3 月实施 COVID-19 公共卫生措施以来收集的数据未包括在内：总体体育活动"，C-；"有组织的运动和体育活动"，C；"积极游戏"，INC；"久坐行为"，C-；"体能"，INC；"家庭和同伴"，D+；"学校"，C-；"体育"，D；"社区和环境"，B+；"政府"，B。针对残疾情况的单独评分如下："总体体育活动"，F；"有组织的运动和体育活动"，D；"久坐行为"，C-；"家庭和同伴"，C；"学校"，C-和 "政府"，B。"积极游戏"、"体育健身"、"体育教育 "和 "社区与环境 "的残疾评分均为INC。自 2016 年的上一份成绩单以来，4 个等级保持不变，3 个等级有所提高（"总体体育活动"、"学校 "和 "体育教育"），2 个等级（"家庭与同伴 "和 "政府"）首次被授予等级。虽然有几项指标略有改善，但在许多指标中，儿童和青少年的 PA 水平仍然较低。

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