THE 30-15 INTERMITTENT FITNESS TEST: CAN IT PREDICT OUTCOMES IN FIELD TESTS OF ANAEROBIC PERFORMANCE?

摘要

Scott, BR, Hodson, JA, Govus, AD, and Dascombe, BJ. The 30-15 Intermittent Fitness Test: can it predict outcomes in field tests of anaerobic performance? J Strength Cond Res 31(10): 2825-2831, 2017-This study determined whether a composite assessment of intermittent fitness could be used to quantify performance in several anaerobic tasks. Fifty-two male recreational athletes (age: 24.3 +/- 4.4 years; body mass: 85.1 +/- 12.2 kg; height: 180.5 +/- 7.0 cm) were recruited from various team sports. Participants completed a battery of field tests to assess sprinting speed (40-m sprint), acceleration ability (10-m sprint), change of direction speed (505 test), anaerobic capacity (300-m shuttle), lowerbody power (vertical jump), and repeated-sprint ability and the 30-15 Intermittent Fitness Test to determine the velocity of intermittent fitness (V-IFT). Relationships between anaerobic tests and V-IFT were quantified via Pearson productmoment correlations, and a 2-predictor model multiple linear regression estimated the predictive relationships between the exercise tests and the V-IFT. Multiple linear regression showed that V-IFT significantly predicted 56, 51, 44, 36, 12, and 1% of the variance in the 300-m shuttle, repeated sprint, 505- and 40-m sprint, vertical jump, and 10-m sprint tests, respectively. The 2-predictor model determined the 300-m shuttle, and repeated-sprint performance accounted for 67% of the variance in V-IFT. These findings highlight that various anaerobic characteristics contribute to the intermittent fitness qualities that are quantified through V-IFT. More specifically, these data indicate that V-IFT is useful for tracking performance in tasks largely determined by anaerobic capac-ity, but may not be a good predictor of brief all-out sprinting and jumping efforts.