TY - RPRT TI - Exercise Intensity Modulates the Validity of Non-Linear Heart Rate Time Series Analysis Window Length: Implications for DFAa1 Monitoring AU - De Maeseneer, J. AU - Olieslagers, A. AU - Gronwald, T. AU - de Beukelaar, T. PY - 2026 DO - 10.64898/2026.02.02.703217 UR - https://www.biorxiv.org/content/10.64898/2026.02.02.703217v1 ID - 10.64898/2026.02.02.703217 ER -