title: The correlation between running economy and maximal oxygen uptake: cross-sectional and longitudinal relationships in highly trained distance runners.
abstract: A positive relationship between running economy and maximal oxygen uptake (V̇O2max) has been postulated in trained athletes, but previous evidence is equivocal and could have been confounded by statistical artefacts. Whether this relationship is preserved in response to running training (changes in running economy and V̇O2max) has yet to be explored. This study examined the relationships of (i) running economy and V̇O2max between runners, and (ii) the changes in running economy and V̇O2max that occur within runners in response to habitual training. 168 trained distance runners (males, n = 98, V̇O2max 73.0 ± 6.3 mL∙kg-1∙min-1; females, n = 70, V̇O2max 65.2 ± 5.9 mL kg-1∙min-1) performed a discontinuous submaximal running test to determine running economy (kcal∙km-1). A continuous incremental treadmill running test to volitional exhaustion was used to determine V̇O2max 54 participants (males, n = 27; females, n = 27) also completed at least one follow up assessment. Partial correlation analysis revealed small positive relationships between running economy and V̇O2max (males r = 0.26, females r = 0.25; P<0.006), in addition to moderate positive relationships between the changes in running economy and V̇O2max in response to habitual training (r = 0.35; P<0.001). In conclusion, the current investigation demonstrates that only a small to moderate relationship exists between running economy and V̇O2max in highly trained distance runners. With >85% of the variance in these parameters unexplained by this relationship, these findings reaffirm that running economy and V̇O2max are primarily determined independently.
authors: English Institute of Sport, Loughborough University, Loughborough, United Kingdom; School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom.
authors: Andrew J
authors: AJ
authors: Shaw
authors: English Institute of Sport, Loughborough University, Loughborough, United Kingdom.
authors: Stephen A
authors: SA
authors: Ingham
authors: Health and Social Care Institute, Teesside University, Middlesbrough, United Kingdom.
authors: Greg
authors: G
authors: Atkinson
authors: School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom.
authors: Jonathan P
authors: JP
authors: Folland
mesh_terms: D000328:Adult; D000332:Aerobiosis; D003430:Cross-Sectional Studies; D004734:Energy Metabolism; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D010100:Oxygen / Q000378:metabolism*; D010101:Oxygen Consumption / Q000502:physiology*; D012420:Running / Q000502:physiology*; D013647:Task Performance and Analysis; D055815:Young Adult
chemical_list: D010100:Oxygen