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61.
《European Journal of Sport Science》2013,13(2):79-87
Abstract In this study we determined the exercise intensity that elicits the highest fat oxidation rate in 15 obese women and 13 obese men. Furthermore the relationship between this intensity with the lactate (LT) and ventilatory thresholds (VT) was investigated in order to give training recommendation for maximal fat utilization during endurance exercise. After an incremental exercise test until exhaustion on a cycle ergometer, subjects performed six 20-min exercise bouts of 25, 35, 45, 55, 65 and 75% VO2peak. The 20 min stages were randomly assigned and spread over two separate occasions (three bouts per occasion). Substrate oxidation was measured with indirect calorimetry and was calculated using stochiometric equations. In both, women and men the highest fat oxidation rate occurred at 65% VO2peak and this did not coincide with either the VT or LT. A significant correlation between VT and LT could not be found in women (r=0.33) nor men (r=0.277). In obese women and men training recommendation for maximal fat utilization should not only be given by the intensity at which AnT occurs. 相似文献
62.
Heikki Rusko 《Journal of sports sciences》2013,31(3):273-286
The influences of growth, training and various training methods were investigated by analysing long‐term training effects in young cross‐country and biathlon skiers (n = 129). Some athletes (n = 49) were studied six times in three years and some at least once a year during a four year period (n = 48). During three summer training periods skiers emphasized either intensive training or distance training or continued to train normally. The results indicated that maximal oxygen uptake (VO2 max) and heart volume increased between 15 and 20 years of age and the most significant changes in heart volume were observed between 16 and 18 years of age. International level skiers were able to increase their VO2 max and heart volume even after 20 years of age. Anaerobic threshold (AT, ml kg‐1 min‐1) increased like VO2 max but when expressed as a percentage of VO2 max, the AT was similar in every age group over 16 years of age. Intensive training at the intensity of anaerobic threshold or higher was observed to be most effective in producing improvements in VO2 max. Low‐intensity distance training was more effective in producing improvements in anaerobic threshold. 相似文献
63.
在中试结果的基础上,采用半经验半理论方法对苯氯化反应器──气提式外环流反应器进行了工程放大,算出有关反应器的设计参数。 相似文献
64.
跆拳道运动员机体能量代谢水平的高低直接影响运动成绩,为了更好的提高跆拳道运动员身体机能及运动成绩,寻找新的训练方法。文章综述了跆拳道运动的供能特点及高原训练对人体能量代谢的影响。 相似文献
65.
66.
周亚夫 《北京工业职业技术学院学报》2003,(2)
通过与6相整流电路的对比,阐述了12相整流器输出电压质量高、含高频谐波成分少、整流装置容量大等优势,从理论上进行了分析,并从电路构成上分析了其可行性。 相似文献
67.
华东交通大学根据实践教学需要,建立了采用微涡流混凝工艺的给水处理实践教学基地,建设规模480 m3/d,处理孔目湖湖水。在给水排水工程专业、市政工程学科的课程教学实践、学生专业技能培训、创新能力培养中得到应用,取得了良好的效果。基地对于提高实践教学质量、完善校内实践基地建设、促进科研水平提高和加强人才培养质量具有重要意义。 相似文献
68.
针对农村生活污水的水质特点,采用厌氧-复合人工湿地组合工艺处理农村生活污水,结果表明,厌氧池对SS的去除率为80.6%;复合人工湿地对COD、TN的去除率分别为61%和61.4%,对TP的去除率在57%~66%之间。 相似文献
69.
邓宏亚 《郧阳师范高等专科学校学报》2012,32(5):76-79
新出土文献清华简《楚居》详细记载了楚行政中枢“郢”的变化,并记载了楚王“徙郢”的部分原因。《楚居》所明确记载“徙郢”原因有国内动乱、外敌入侵、自然灾害等因素;考察相关文献资料,楚王“徙郢”原因还有对外扩张的因素。 相似文献
70.