RT Journal Article SR Electronic T1 Tennis ranking related to exercise capacity JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr0920080965 DO 10.1136/bcr.09.2008.0965 VO 2009 A1 Winfried Banzer A1 Christian Thiel A1 Andreas Rosenhagen A1 Lutz Vogt YR 2009 UL http://casereports.bmj.com/content/2009/bcr.09.2008.0965.abstract AB This is the first 7-year prospective case report on the relationship between VO2max during preparation and the following year’s entry ranking for a top athlete. The strong relationship between VO2max and the following year’s ATP entry ranking over time underlines the importance of the preseason training period to optimise cardiorespiratory capacity. The current findings emphasise the relevance and predictive value of continuous performance tests and the need for more elaborate and longitudinal tracking study designs, as well as regression models that include playing style as a covariate.