Internal training exposure: development and construct validation of an individualised method using heart rate variability.

ABSTRACT:

Purpose

The aim was to develop and validate an individualised internal training exposure method by deriving weighting factors for each heart rate (HR) from detrended fluctuation analysis of heart rate variability (DFA-α1) during a graded exercise test.

Methods

Thirty-seven participants (17 females; 32.72 ± 9.26 years; maximal oxygen uptake, V˙ O_2max = 48.32 ± 7.95 mL kg^-1 min^-1) completed a step- and a ramp incremental test to measure blood lactate (BLa), DFA-α1, and cardiorespiratory fitness (CRF) variables, i.e. speed at lactate, ventilatory thresholds (LTs/VTs), and V˙ O_2max. Exponential fitting of the fractional elevation of HR (ΔHR) with BLa (individualised training impulse; iTRIMP) or DFA-α1 (αTRIMP) generated individualised

SUBMITTER: Sheoran S 

PROVIDER: S-EPMC12528351 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature