Changes in serum haptoglobin as an acute response to a marathon road race

In order to assess the possible occurrence of acute haemolysis with prolonged exertion, serum haptoglobin levels were determined from venous blood samples collected from eight male runners immediately preceding (PreRH), immediately following (PRH1), and 6 h following (PRH2) completion of a marathon road race. The subjects' mean age, percentage of body fat, and maximum oxygen uptake (VO2max) were 46 +/- 9 years, 12.1 +/- 3.4% and 54.9 +/- 8.4 ml kg-1 min-1, respectively. The mean race finish time for the subjects was 3:35 +/- 0:18 h:min. The PreRH, PRH1 and PRH2 averaged 129 +/-18, 97 +/- 48 and 86 +/- 35 mg dl-1 respectively. Significant differences of -32.5 mg dl-1 between PreRH versus PRH1 and -42.5 mg dl-1 between PreRH versus PRH2 were found. The difference between PRH1 and PRH2 of -10.6 mg dl-1 was not significant. No significant correlations were found between the decreases in serum haptoglobin and VO2max or race finish time. The data suggests to occurrence of an acute haemolysis with performance of the marathon road race.     

The generation and use of text fragments for data compression

An analysis of 31,369 bibliographic titles was carried out to obtain statistics on frequently occurring character groups to increase the effective character set with the aim of estimating possible compression factors for text. It was found that a common set could be used to obtain compression ranging between 30 and 53% over a wide variety of original text.     

信息网络时代体育函授学员的学习特征

运用信息论的原理 ,分析和阐述了信息化社会的发展和学习化社会的来临 ,对体育函授学员学习观念和学习行为的影响 ;并重点阐述了信息网络时代体育函授学员学习的 4大特征。     

体育运动与心理健康关联性分析

心理健康的内涵在于要有平和的心境、正常的心态、稳定的心情．本文表述了现代人心理健康状况，重点分析了运动对心理健康的积极意义，针对人的各种心理障碍制定了运动处方。