Reproducibility of Maximum Aerobic Power (Vo2max) Among Soccer Players Using a Modified Heck Protocol

Abstract

JM; Hernandez AJ. Reproducibility of maximum aerobic power (VO 2max ) among soccer players using a modified heck protocol. Clinics. 2007;62(4):391-6. OBJECTIVE:To determine the degree of reproducibility of maximum oxygen consumption (VO 2max ) among soccer players, using a modified Heck protocol. METHODS: 2 evaluations with an interval of 15 days between them were performed on 11 male soccer players. All the players were at a high performance level; they were training for an average of 10 hours per week, totaling 5 times a week. When they were evaluated, they were in the middle of the competitive season, playing 1 match per week. The soccer players were evaluated on an ergometric treadmill with velocity increments of 1.2 km . h -1 every 2 minutes and a fixed inclination of 3% during the test. VO 2max was measured directly using a breath-by-breath metabolic gas analyzer. RESULTS:The maximum running speed and VO 2max attained in the 2 tests were, respectively: (15.6 ± 1.1 vs. 15.7 ± 1.2 km ; [P = .88]). There was high and significant correlation of VO 2max between the 2 tests with a 15-day interval between them [r = 0.97; P < .001]. CONCLUSION: The modified Heck protocol was reproducible, and the 15-day interval between the ergospirometric testing was insufficient to significantly modify the soccer players' VO 2max values.

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“…Greve et al 34 evaluated the correlation between body mass index (BMI) and postural balance in unipodal support, and concluded that high BMI demands more displacements to maintain postural balance. Santos-Silva et al 35 determined the degree of reproducibility of maximum oxygen uptake (VO 2max ) among soccer players, using a modified Heck protocol. The modified Heck protocol was reproducible, and the 15-day interval between the ergoespirometric testing was insufficient to significantly modify the soccer players' VO 2max values.…”