Interval exercise induces milder respiratory responses compared to continuous exercise     

Pierros Thomakos  Nikolaos Geladas  Ifigenia Giannopoulou  George Varouhakis  Panagiotis Behrakis 《Journal of sports sciences》2020,38(5):576-581

ABSTRACT

The purpose of this study was to explore the respiratory response of acute interval and continuous exercise (CE) of low and high intensity. Fourteen recreational athletes (7 men and 7 women; VO₂max = 35.7 ± 6.1 mlkg^–1min^–1) performed a bout of continuous and a bout of interval exercise (IE) both consisted of 5-min cycling at low intensity [80% of the power output (W) of the predetermined gas exchange threshold (GET) (80%W_GET)] and 5-min cycling at high intensity {W_GET plus the work rate corresponding to 50% of the difference between peak power output (PPO) at oxygen uptake (VO₂max) test and the W_GET [W_GET + 0.50 Δ(PPO – W_GET)]}. CE compared to IE induced significant higher heart rate and ventilation as well as significant higher levels of mouth occlusion pressure for 0.1 s (P_0.1) (P < 0.05) during low and high intensities. Our results indicate that CE stimulates respiration more than IE when the exercise is performed at the same relative intensity.  相似文献   

12周惯性哑铃练习对轻度认知损害老年人的干预效果     

吕娇娇  黄灵燕  刘宇 《上海体育学院学报》2020,(5):63-69,80

目的观察12周惯性哑铃练习对轻度认知损害(MCI)老年人认知功能、身体活动能力、生活质量和睡眠质量的影响,并探讨认知改善与其他功能改变之间的关系。方法将45名MCI老年人随机分为干预组(n=22)和对照组(n=23)。干预组受试者进行惯性哑铃练习(3次/周,60 min/次,持续12周),对照组不进行运动干预。结果 12周后,干预组受试者阿尔茨海默病评定量表-认知部分(ADAS-Cog)总分/指令得分、蒙特利尔认知评估量表(MoCA)评分、起立行走计时(TUG)和SF-36健康调查问卷(SF-36)心理总得分均显著改善(均P<0.05)。与对照组相比,干预组受试者ADAS-Cog总分/单词回忆得分/注意力得分、简明精神量表(MMSE)评分、TUG和匹兹堡睡眠指数(PSQI)的改善程度均具有显著差异(P<0.05或P=0.05)。偏相关分析结果显示,SF-36心理总得分改变(r=-0.712)、PSQI改变(r=-0.380)与认知改善程度均呈显著负相关。结论 12周惯性哑铃练习可显著提高MCI老年人的认知功能,并对其移动能力、生活质量和睡眠质量具有积极影响,且心理和睡眠改变程度可能影响认知功能的改善效果。  相似文献   

Readiness for school of children having attended language immersion kindergarten in their teachers' and parents' opinions     

Airi Kukk  Aino Ugaste 《International Journal of Early Years Education》2014,22(2):156-168

In multicultural societies, much attention is given to children's language learning possibilities. In Estonia, the early language immersion programme for kindergarten children was started in the year 2000. The programme, while considered to be successful, has raised the question of whether the children participating in it are adequately prepared for school. The objective of the present study is to observe the readiness for school of those children who have participated in the early language immersion programme, taking into consideration the objectives of the curriculum and their teachers' and parents' assessments. The method of this study was a questionnaire employed over a three-year period (2009–2011) involving the teachers and parents of those children who were beginning their primary school education. The results of the study revealed that, according to the assessments of their teachers and parents, the readiness for school of the children having completed the early language immersion programme was very good. Data prove that language immersion programmes provide children with enough preparation to make a smooth transition from kindergarten to school life.  相似文献   

Renovating early childhood education pedagogy: a case study in Vietnam     

Dang Phuong Thao 《International Journal of Early Years Education》2014,22(2):184-196

Since 2003, the Vietnamese government has prioritised curriculum reform efforts and commitment to improving the quality of the national curriculum. The Vietnamese early childhood education renovation has encountered considerable changes and challenges, particularly in the area of pedagogical approaches. Many early childhood teachers continue to favour direct instruction over more appropriate teaching practices for early childhood. This paper reviews the implementation and renovation of the revised curriculum over the past 10 years in Vietnam, and examines the changing realities of early childhood teachers' work to explore ways to implement and sustain changes in pedagogy in Lam Dong Province, Vietnam. The paper explores how changing societal expectations and the changing educational philosophies and resultant pedagogy have impacted on the beliefs and practices of early childhood teachers. The teaching profession, as a whole, is facing ongoing change and challenge; not only are ongoing educational reforms redefining teachers' work, but increasing teacher attrition and turnover also creates problems for Early Childhood Education and Care (ECEC) in Lam Dong province. The paper concludes with suggestions for areas for future research in Vietnam in the field of ECEC.  相似文献   

五年一贯制高职前期教育策略   总被引：1，自引：0，他引：1  

尹小玲  秦源 《深圳职业技术学院学报》2011,10(2):65-67

通过五年一贯制高职教育和三年制高职教育的比较,提出五年一贯制教育的前两年为前期教育阶段,探讨了在这一阶段可以实施的教学和管理策略,以期促进五年一贯制高职教育的发展。  相似文献   

消除运动性疲劳的10种中药及其元素的研究   总被引：1，自引：0，他引：1  

隋朝飞  刘广路  张广建 《衡水学院学报》2008,10(4)

近20年来,国内运动医学界已开始重视并运用中药和元素等中药疗法来治疗运动性疲劳、缩短恢复时间、提高运动能力,取得了一些研究成果．本文用ICP／AES法对10种抗运动性疲劳中药中的17种元素进行了分析．研究发现：运动性疲劳与中医的“虚证”是十分相似的;中医的补虚类中药中微量元素含量与临床上治疗各种虚证的疽效有密切关系．  相似文献   

团体健美操的创编与训练     

陆善芬  任淑慧 《连云港师范高等专科学校学报》2001,(4):75-76

随着团体健美操在各种场合的表演，其创编与训练引起了人们的关注。因此，本文就团体健美操的创编与训练作一探析。  相似文献   

试论先秦时代的用贤机制     

宁松夫 《襄樊职业技术学院学报》2002,1(4):71-74

重用贤才辅政，是我国有史以来历代明君贤王的愿望。先秦时代，虽然还只是用贤的初始阶段，但执政中的贤明，却在选贤任能、唯贤是举、知人察贤和宽怀用贤等方面进行了多方面的实践，并在实践中总结出一些值得今人借鉴的经验和教训。  相似文献   

Exploring digital transformation through pretend play in kindergarten     

Franziska Vogt  Lena Hollenstein 《British journal of educational technology : journal of the Council for Educational Technology》2021,52(6):2130-2144

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Effect of acquisition rates on off‐task behavior of kindergarten students while learning sight words     

Matthew K. Burns  Lisa N. Aguilar  Kristy Warmbold‐Brann  June L. Preast  Crystal N. Taylor 《Psychology in the schools》2021,58(1):5-17

Assessing a student's acquisition rates (ARs) is a reliable way to determine how many new words should be taught in one lesson without reducing retention. Exceeding a student's AR can result in frustration and problem behaviors. The purpose of this study was to examine the effect of AR on the off‐task behavior of kindergarten students while participating in a commonly used sight‐word instruction video. Participants included 39 kindergarten students whose ARs were assessed before showing the sight‐word video. Behavior was measured as on‐ and off‐task using momentary time‐sampling with 10‐s intervals. Results indicated that students' time off task increased after exceeding their ARs, with a noticeable immediate increase. The implications and limitations of these results are discussed.  相似文献