Moderate differences (d = 0.60-0.79) were found between age-predicted, test-derived, and session-based methods for determining maximum heart rate when calculating summated-heart-rate-zones.
Cross-Sectional (n=6)
Do different methods of determining maximum heart rate (age-predicted, test-derived, session-based) affect summated-heart-rate-zones training load calculations in basketball players?
Age-predicted, test-derived, and session-based methods to determine HRmax are not interchangeable when calculating summated-heart-rate-zones training load, suggesting individualized direct measurement is preferable.
Effect estimate: d = 0.60-0.79
Berkelmans, DM, Dalbo, VJ, Fox, JL, Stanton, R, Kean, CO, Giamarelos, KE, Teramoto, M, and Scanlan, AT. Influence of different methods to determine maximum heart rate on training load outcomes in basketball players. J Strength Cond Res 32(11): 3177-3185, 2018-The summated-heart-rate-zones (SHRZ) approach uses heart rate (HR) responses relative to maximum HR (HRmax) to calculate the internal training load (TL). Age-predicted, test-derived, and session-based approaches have all been used to determine HRmax in team sports. The purpose of this study was to determine the effects of using age-predicted, test-derived, and session-based HRmax responses on SHRZ TL in basketball players. Semiprofessional, male basketball players (N = 6) were analyzed during the preparatory training phase. Six age-based approaches were used to predict HRmax including Fox (220 - age); Hossack (206 - 0.567 × age); Tanaka (208 - 0.7 × age); Nikolaidis (223 - 1.44 × age); Nes (211 - 0.64 × age); and Faff (209.9 - 0.73 × age). Test-derived HRmax was taken as the highest HR during the Yo-Yo intermittent recovery test (Yo-Yo IRT), whereas session-based HRmax was taken as the higher HR seen during the Yo-Yo IRT or training sessions. Comparisons in SHRZ TL were made at group and individual levels. No significant group differences were evident between SHRZ approaches. Effect size analyses revealed moderate (d = 0.60-0.79) differences between age-predicted, test-derived, and session-based methods across the group and individually in 2 players. The moderate differences between approaches suggest age-predicted, test-derived, and session-based methods to determine HRmax are not interchangeable when calculating SHRZ. Basketball practitioners are encouraged to use individualized HRmax directly measured during field-based tests supplemented with higher HR responses evident during training sessions and games when calculating the SHRZ TL to ensure greatest accuracy.
Berkelmans et al. (Fri,) conducted a cross-sectional in Healthy (Basketball players) (n=6). Different methods to determine maximum heart rate (age-predicted, test-derived, session-based) vs. Each other was evaluated on Summated-heart-rate-zones (SHRZ) training load (d = 0.60-0.79). Moderate differences (d = 0.60-0.79) were found between age-predicted, test-derived, and session-based methods for determining maximum heart rate when calculating summated-heart-rate-zones.