title: Prediction of VO2max from a new field test based on portable indirect calorimetry.
abstract: We assessed the validity and reliability of the new 15m square shuttle run test (SST) for predicting laboratory treadmill test (TT) maximal oxygen uptake (VO(2 max)) compared to the 20 m multistage shuttle run test (MST) in 45 adult males. Thirty participants performed a TT and a SST once to develop a VO( 2max) prediction model. The remaining 15 participants performed the TT and MST once and the SST twice for cross-validation purposes. Throughout testing V O(2max) was determined via portable indirect calorimetry while blood lactate concentration was assessed at the fifth recovery minute. Comparisons of TT V O(2 max) (51.3+/-3.1 ml kg(-1)min(-1)) with SST measured (51.2+/-3.2 ml kg(-1)min(-1)) and predicted (50.9+/-3.3 ml kg(-1)min(-1)) V O(2 max) showed no differences while TT blood lactate was higher compared to SST (10.3+/-1.7 mmol vs. 9.7+/-1.7 mmol, respectively). In contrast, MST measured (53.4+/-3.5 ml kg(-1)min(-1)) and predicted (57.0+/-4.5 ml kg(-1)min(-1)) V O(2 max) and blood lactate (11.2+/-2.0 mmol) were significantly higher compared to TT. No test-retest differences were detected for SST measured and predicted V O(2 max) and blood lactate. It is concluded that the SST is a highly valid and reliable predictive test for V O(2 max).
authors: The Institute for Human Performance and Rehabilitation, Centre for Research and Technology-Thessaly, Greece. aflouris@cereteth.gr
authors: Andreas D
authors: AD
authors: Flouris
authors: Giorgos S
authors: GS
authors: Metsios
authors: Konstantinos
authors: K
authors: Famisis
authors: Nikos
authors: N
authors: Geladas
authors: Yiannis
authors: Y
authors: Koutedakis
mesh_terms: D000293:Adolescent; D002153:Calorimetry, Indirect; D005080:Exercise Test / Q000379:methods* / Q000592:standards*; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D016014:Linear Models; D008297:Male; D008448:Maximal Expiratory Flow Rate; D010101:Oxygen Consumption / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology; D010809:Physical Fitness / Q000502:physiology; D014797:Vital Capacity / Q000502:physiology*; D055815:Young Adult
chemical_list: D019344:Lactic Acid