Abstract:
:Intravascular haemolysis has been found to result from prolonged endurance competition, rigorous military training and participation in impact sports. Haematological research involving the recreational runner is sparse. Recreational runners frequently vary their training to avoid monotony and improve endurance capacity. This study investigated the haematological effects of a typical day of increased distance training in 15 male recreational runners (62.4(3.1) ml kg-1 min-1 treadmill VO2max; 44.6(8.4) km per week training (means(s.d.)). Venous blood samples were collected before, immediately after, 1 day, 4 days, and 10 days after a 13-km training run (about twice the subjects' typical running distance) and analysed for changes in bilirubin, serum potassium, haematocrit, haemoglobin, red blood cell count, haptoglobin, poikilocytosis and reticulocytosis. Urine samples were collected at the same times as the blood samples and analysed for urobilinogen. Significant (P less than 0.05) 1-day and 4-day decreases in mean haemoglobin, red blood cell count, and haptoglobin values, compared to before training venous blood values and significant (P less than 0.05) post-training increases in bilirubin, serum potassium, urobilinogen and poikilocytosis provided evidence for increased intravascular haemolysis. After 10 days the values for haematocrit, bilirubin, serum potassium, red blood cell count, urobilinogen and poikilocytosis were not significantly (P less than 0.05) different from pre-training values while haemoglobin remained significantly (P less than 0.05) lower, exhibiting a constant but not significant increase over the period from 1 to 10 days. The results indicate that mild intravascular 'footstrike' haemolysis can occur in the recreational runner when typical training distance is increased. This condition appears to be transient and benign.
journal_name
Br J Sports Medjournal_title
British journal of sports medicineauthors
Deitrick RWdoi
10.1136/bjsm.25.4.183subject
Has Abstractpub_date
1991-12-01 00:00:00pages
183-7issue
4eissn
0306-3674issn
1473-0480journal_volume
25pub_type
杂志文章abstract::The first fatal accident to a fencer in the United Kingdom is described. Several factors contributed to the accident but there appears to be no simple way of preventing a recurrence, but some additional precautions are discussed. ...
journal_title:British journal of sports medicine
pub_type: 杂志文章
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更新日期:1984-09-01 00:00:00
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journal_title:British journal of sports medicine
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journal_title:British journal of sports medicine
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pub_type: 杂志文章
doi:10.1136/bjsm.10.3.143
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journal_title:British journal of sports medicine
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pub_type: 杂志文章
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doi:10.1136/bjsm.2005.023044
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journal_title:British journal of sports medicine
pub_type: 杂志文章
doi:10.1136/bjsm.32.4.340
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pub_type: 杂志文章,meta分析,评审
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更新日期:2018-05-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 杂志文章
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更新日期:1989-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1136/bjsports-2013-093386
更新日期:2015-01-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2005-02-01 00:00:00
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更新日期:2013-05-01 00:00:00
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pub_type: 杂志文章,实务指引
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journal_title:British journal of sports medicine
pub_type: 杂志文章
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更新日期:2013-11-01 00:00:00
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journal_title:British journal of sports medicine
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更新日期:2010-09-01 00:00:00
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journal_title:British journal of sports medicine
pub_type: 临床试验,杂志文章
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journal_title:British journal of sports medicine
pub_type: 杂志文章,评审
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更新日期:1991-12-01 00:00:00
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更新日期:2004-06-01 00:00:00
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