Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
Objective: The purpose of this pilot study was to assess the effectiveness of the Bull Tough helmet (Bull Tough, Seguin, TX) in preventing head injuries to bull riders. The hypothesis was that this helmet is effective in diminishing the incidence of head injuries in bull riders.
Design: This study was a retrospective study.
Methods: Surveys were mailed to 320 purchasers of the Bull Tough helmet. Participants were asked to recall the numbers of rides performed in 1999 while wearing the helmet and the number of rides performed in 1999 while not wearing the helmet. In addition, they were asked to provide the number and severity of head injuries suffered in 1999 both while wearing the helmet and while not wearing the helmet.
Setting: Participants responding to the survey were bull riders from the United States and Canada.
Participants: Eighty-one riders responded to the survey.
Main Outcome Measurements: The primary outcome measurements were planned before data collection began and included the incidence of head injuries to bull riders both while wearing the helmet and while not wearing the helmet.
Results: While not wearing a helmet, the incidence of head injury was 1.54% per ride (11 head injuries/713 rides). While wearing the helmet, the incidence of head injury was 0.80% per ride (28 head injuries/3,518 rides). Using the X(2) test, the p value was 0.0570.
Conclusions: This study supports the hypothesis that the Bull Tough helmet diminishes the incidence of head injury in bull riders.
Download full-text PDF |
Source |
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http://dx.doi.org/10.1097/00042752-200211000-00007 | DOI Listing |
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