First Author / Year Design Limitations Inconsistency Indirectness Imprecision Other considerations Overall quality Performance Freeman et al. 1990 [] Observational VO2max is a poor No important Asthmatic subjects Low subject No further considerations Very low predictor of athletic inconsistencies recruited rather numbers performance than individuals with objective Severity of airway evidence of EIB obstruction not defined Standard of asthmatic subjects below standard expected for elite or competitive athletes (mean ± SD VO2max: 56 ± 5 mL.kg-1.min-1 ) Freeman et al. 1990 [14] Observational No control group employed No important Asthmatic subjects Low subject No further considerations Very low inconsistencies recruited rather numbers VO2max is a poor than individuals predictor of athletic with objective performance evidence of EIB Severity of airway Standard of obstruction not defined asthmatic ranged from recreational to elite level athlete Sonna et al. 2001 [12] Observational VO2max is a poor No important Physically active No serious No further considerations Very low predictor of athletic inconsistencies army recruits rather imprecision performance than athletes Severity of EIB not defined Standard of asthmatic subjects below standard expected for elite or competitive athletes (mean ± SD VO2max 46 ± 1 mL.kg-1.min-1)
First Author / Year Design Limitations Inconsistency Indirectness Imprecision Other considerations Overall quality Performance Freeman et al. 1990 [] Observational VO2max is a poor predictor of athletic performance Severity of airway obstruction not defined No important inconsistencies Asthmatic subjects recruited rather than individuals with objective evidence of EIB Standard of asthmatic subjects below standard expected for elite or competitive athletes (mean ± SD VO2max: 56 ± 5 mL.kg-1.min-1 ) Low subject numbers No further considerations Very low Freeman et al. 1990 [14] Observational No control group employed VO2max is a poor predictor of athletic performance Severity of airway obstruction not defined No important inconsistencies Asthmatic subjects recruited rather than individuals with objective evidence of EIB Standard of asthmatic ranged from recreational to elite level athlete Low subject numbers No further considerations Very low Sonna et al. 2001 [12] Observational VO2max is a poor predictor of athletic performance Severity of EIB not defined No important inconsistencies Physically active army recruits rather than athletes Standard of asthmatic subjects below standard expected for elite or competitive athletes (mean ± SD VO2max 46 ± 1 mL.kg-1.min-1) No serious imprecision No further considerations Very low
SportsMedicine_Performance_R2.docx