Team Size and Stretching-Exercise Effects on Simulated Chest Compression Performance and Exertion
| Autor: | Jason T. Machan, Jessica C. Schoen, Leo Kobayashi, Max Dannecker |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Male
task performance and analysis Students Medical medicine.medical_treatment lcsh:Medicine Heart Massage 030204 cardiovascular system & hematology Manikins 0302 clinical medicine Medicine Prospective Studies Volunteer Fatigue Original Research education.field_of_study lcsh:Medical emergencies. Critical care. Intensive care. First aid General Medicine patient simulation Cohort emergency treatment Emergency Medicine Female human engineering Education Medical Undergraduate Adult medicine.medical_specialty Critical Care Physical Exertion Population cardiopulmonary resuscitation Breathing Exercises Young Adult 03 medical and health sciences Muscle Stretching Exercises Heart rate Pressure Humans Exertion Cardiopulmonary resuscitation education Patient Care Team business.industry lcsh:R Heart rate monitor 030208 emergency & critical care medicine Data compression ratio lcsh:RC86-88.9 Cardiopulmonary Resuscitation body regions Physical therapy business |
| Zdroj: | Western Journal of Emergency Medicine Schoen, Jessica C.; Machan, Jason T.; Dannecker, Max; & Kobayashi, Leo. (2017). Team Size and Stretching-Exercise Effects on Simulated Chest Compression Performance and Exertion. Western Journal of Emergency Medicine, 18(6). doi: 10.5811/westjem.2017.8.34236. Retrieved from: http://www.escholarship.org/uc/item/47h8z844 Western Journal of Emergency Medicine, Vol 18, Iss 6 (2017) |
| ISSN: | 1936-900X |
| DOI: | 10.5811/westjem.2017.8.34236 |
| Popis: | Author(s): Schoen, Jessica C.; Machan, Jason T.; Dannecker, Max; Kobayashi, Leo | Abstract: Introduction: Investigators conducted a prospective experimental study to evaluate the effectof team size and recovery exercises on individual providers’ compression quality and exertion.Investigators hypothesized that 1) larger teams would perform higher quality compressions withless exertion per provider when compared to smaller teams; and 2) brief stretching and breathingexercises during rest periods would sustain compressor performance and mitigate fatigue.Methods: In Phase I, a volunteer cohort of pre-clinical medical students performed four minutesof continuous compressions on a Resusci-Anne manikin to gauge the spectrum of compressorperformance in the subject population. Compression rate, depth, and chest recoil weremeasured. In Phase II, the highest-performing Phase I subjects were placed into 2-, 3-, and/or4-compressor teams; 2-compressor teams were assigned either to control group (no recoveryexercises) or intervention group (recovery exercises during rest). All Phase II teams participatedin 20-minute simulations with compressor rotation every two minutes. Investigators recordedcompression quality and real-time heart rate data, and calculated caloric expenditure fromcontact heart rate monitor measurements using validated physiologic formulas.Results: Phase I subjects delivered compressions that were 24.9% (IQR1-3: [0.5%-74.1%])correct with a median rate of 112.0 (IQR1-3: [103.5-124.9]) compressions per minute anddepth of 47.2 (IQR1-3: [35.7-55.2]) mm. In their first rotations , all Phase II subjects deliveredcompressions of similar quality and correctness (p=0.09). Bivariate analyses of 2-, 3-, and4-compressor teams’ subject compression characteristics by subsequent rotation did notidentify significant differences within or across teams. On multivariate analyses, only subjects in2-compressor teams exhibited significantly lower compression rat es (control subjects; pl0.01),diminished chest release (intervention subjects; p=0.03), and greater exertion over successiverotations (both control [p≤0.03] and intervention [p≤0.02] subj ects).Conclusion: During simulated resuscitations, 2-compressor teams exhibited increased levels ofexertion relative to 3- and 4-compressor teams for comparable compression delivery. Stretchingand breathing exercises intended to assist with compressor recovery exhibited mixed effects oncompression performance and subject exertion. |
| Databáze: | OpenAIRE |
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