Key result
The Fox equation overestimated measured maximal heart rate by 2.8 bpm and the Tanaka equation underestimated it by 3.3 bpm in competitive soccer players, failing to validate these widely used age-based prediction equations.
Why the study?
Do standard age-based prediction equations accurately estimate maximal heart rate in adolescent and adult soccer players?
Cross-Sectional (n=320)
Do standard age-based prediction equations accurately estimate maximal heart rate in adolescent and adult soccer players?
Mean Difference: 2.8 (95% CI 1.6–3.9)
Absolute Event Rate: 200.3% vs 197.6%
p-value: p=<0.001
Traditional age-based prediction equations for maximal heart rate (Fox and Tanaka) are inaccurate in soccer players, highlighting the need for sport-specific equations.
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Suggests standard equations may inaccurately estimate maximal heart rate in soccer players; leaves open validation of sport-specific formulas.
Pantelis Τ. Nikolaidis (2014) conducted a cross-sectional in Healthy soccer players (n=320). Age-based prediction equations (Fox and Tanaka) vs. Measured maximal heart rate was evaluated on Difference between Fox-HRmax and measured-HRmax (MD 2.8 bpm, 95% CI 1.6 to 3.9, p=<0.001). The Fox equation overestimated measured maximal heart rate by 2.8 bpm and the Tanaka equation underestimated it by 3.3 bpm in competitive soccer players, failing to validate these widely used age-based prediction equations.
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