Heart rate-index estimates aerobic metabolism in professional soccer players.

摘要: Abstract Objectives This study aimed at proposing a new heart rate (HR) method to track aerobic metabolism in soccer by: (i) validating recently developed HR index (HRindex) professional players, (ii) comparing HRindex vs the most common parameters and (iii) testing agreement between measured estimated VO2 values using HRindex. Design cross-sectional. Methods 184 players performed step incremental running test on treadmill while were recorded. was calculated (actual HR/resting HR) its relationship with compared relationships of actual HR, net % reserve. Finally, used predict VO2 = ((HRindex · 6) − 5) · 3.5) by 2W RM-ANOVA Bland–Altman analysis. Results HRindex/VO2 explained 85% variability data, showing higher performance than (77%) similar other parameters. Measured not significantly different ≤14 km h−1, whereas speeds ≥14 km h−1 VO2. highly correlated (R2 = 0.85, p = 0.000), showed no significant bias (bias = −1.03, z = −0.69, precision = 3.75 ml kg min−1). Conclusions We validated players. better allowed estimate VO2, but very high-intensity underestimated Future studies should this real game conditions. could offer time-efficient easy-to-use “field” monitor soccer.