tailieunhanh - báo cáo hóa học: " Accuracy of peak VO2 assessments in career firefighters"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Accuracy of peak VO2 assessments in career firefighters | Drew-Nord et al. Journal of Occupational Medicine and Toxicology 2011 6 25 http content 6 1 25 _ JOURNAL OF OCCUPATIONAL MEDICINE AND TOXICOLOGY RESEARCH Open Access Accuracy of peak VO2 assessments in career firefighters l I zzd 11 h l ZM f2 D l I rzd3 D A rt- s IX cwlz-s4 r Ri c r z t I I z t 1 Z l c z Iz-S c Ci v vli -k M 5 Dana C Drew-Nord Jonathan Myers Stephen n Nord Roberta K Oka OiSaeng Hong ano Erika S rroeiicher Abstract Background SuQQen cardiac death is the leading cause of on-duty death in United States firefighters. Accurately assessing cardiopulmonary capacity is critical to preventing or reducing cardiovascular events in this population. Methods A total of 83 male firefighters performed Wellness-Fitness Initiative WFI maximal exercise treadmill tests and direct peak VO2 assessments to volitional fatigue. Of the 83 63 completed WFI sub-maximal exercise treadmill tests for comparison to directly measured peak VO2 and historical estimations. Results Maximal heart rates were overestimated by the traditional 220-age equation by about 5 beats per minute p .001 . Peak VO2 was overestimated by the WFI maximal exercise treadmill and the historical WFI sub-maximal estimation by 1MET and 2 METs respectively p . The revised 2008 WFI sub-maximal treadmill estimation was found to accurately estimate peak VO2 when compared to directly measured peak VO2. Conclusion Accurate assessment of cardiopulmonary capacity is critical in determining appropriate duty assignments and identification of potential cardiovascular problems for firefighters. Estimation of cardiopulmonary fitness improves using the revised 2008 WFI sub-maximal equation. Background Every 23 seconds a fire in the United States requires the services of a career or volunteer fire department 1 . Sudden cardiac death is the most common cause of on-duty death among firefighters and occurs at higher rates than those found in similar occupations such as police and emergency medical .