A test to assess aerobic and anaerobic parameters during maximal exercise in young girls.
The Wingate cycle test (WAnT) is a 30-s test commonly used to estimate anaerobic work capacity (AWC). However, the test may be too short to fully deplete anaerobic energy reserves. We hypothesized that a 90-s all-out isokinetic test (ISO_90) would be valid to assess both aerobic and anaerobic capacities in young females. Eight girls (11.9 ± 0.5 y) performed an exhaustive incremental test, a WAnT and an ISO_90. Peak VO2 attained during the ISO_90 was significantly greater than VO2peak. Mean power, end power, fatigue index, total work done and AWC were not significantly different between the WAnT and after 30 s of the 90-s test (i.e., ISO_30). However, 95% limits of agreement showed large variations between the two tests when comparing all anaerobic parameters. It is concluded that an ISO-90 may be a useful test to assess aerobic capacity in young girls. However, since the anaerobic parameters derived from the ISO_30 did not agree with those derived from a traditional WAnT, the validity of using an ISO_90 to assess anaerobic performance and capacity within this population group remains unconfirmed.
Dept of Health Sciences, Mid Sweden University, Swedish Winter Sports Research Centre, Östersund, Sweden.
Kerry
K
McGawley
Erwan
E
Leclair
Jeanne
J
Dekerle
Helen
H
Carter
Craig A
CA
Williams
D000293:Adolescent; D000367:Age Factors; D015308:Anaerobic Threshold / Q000502:physiology*; D000704:Analysis of Variance; D001642:Bicycling / Q000502:physiology*; D002648:Child; D016552:Ergometry / Q000295:instrumentation* / Q000379:methods; D015444:Exercise / Q000502:physiology*; D017079:Exercise Tolerance / Q000502:physiology*; D005260:Female; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology; D010101:Oxygen Consumption / Q000502:physiology*; D011659:Pulmonary Gas Exchange; D012737:Sex Factors