The effects of athletic sports on the heart / by C.R. Bardeen.

  • Charles Russell Bardeen
Date:
[1913?]
Catalogue details

Licence: Public Domain Mark

Credit: The effects of athletic sports on the heart / by C.R. Bardeen. Source: Wellcome Collection.

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    taken no part in the severer athletic sports. The pulse rate at rest, sitting, averaged 80, and after crease of 34%. The systolic blood pressure at rest, sitting, averaged 117, the diastolic pressure 73, the pulse pressure 44. In Groups 2-5 are summarized the findings in thirty-six men active in college athletics who gave sports which could account for cardiac lesions. No crease of 20, 24%. The hearts of these men were therefore less easily excited to rapid action than those of non-athletes. .The systolic pressure was 122, slightly higher than the average obtained for non-athletes (not enough difference to mean much considering the number examined). The differ- ence in diastolic pressure (90 as compared with 73) and pulse pressure (32 as compared with 44) is, however, probably significant. In all athletes examined the diastolic blood pressure was rela- tively high. AVERAGE RESULTS GROUPS PULSE RATE BLOOD PRESSURE Before Test | After Test Per Cent Diastolic Systolic ee I Control 80 107 34 73 117 44 (13 cases) II Athletes with ‘‘normal’’ hearts 83 103 24 90 122 32 (3 cases) Il Athletes with large hearts and ‘ slow pulse 61 81 32 94 126 32 (10 cases) eee IV Irritable hypertrophied hearts T Tek oss 115 50 99.8 13335 35.5 (11 cases) V Hypertrophied hearts, Systolic ‘ - murmurs before and after test a hie 38 83 115 © ap (12 cases) VI. Acute Dilatation a ae One year before test fe ae _ ” we =f eb; onths before test 100 135 33 99 121 22 attempt at selection was made other than to pick out men free from a medical history which might have affected the heart. As many of the more prominent college athletes as could be conveniently reached last spring were invited to submit to simple tests along the lines given above for non- athletes. About three-fourths of the more promi- nent college athletes responded. Only those are tabulated who had taken part in the severer sports crew, football, basket-ball and track. Of the thirty-six men examined three, 8.4%, had slightly hypertrophied but otherwise apparently normal hearts. The pulse rates before and after the test were, respectively, 83 and 103, a rate in- In Group 3 we have summarized the results found in 10 athletes with greatly hypertrophied hearts, slow pulse rate (averaging 60.6 at rest), an increase in pulse rate in response to moderate exercise about like the normal heart (32%), a high diastolic pressure (94) and a low pulse pressure (32). As a rule the systolic pressure was not high although in one case it was 146. In two cases there were mitral murmurs after exercise. ‘The in- dividuals in this group represent the best athletes in college. In Group 4 we have a summary of 11 cases of ‘irritable’ hearts. The individuals in this group all had enlarged hearts, the rate of beat of which
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