TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Zrenner, Markus A1 - Heyde, Christian A1 - Duemler, Burkhard A1 - Dykman, Solms A1 - Roecker, Kai A1 - Eskofier, Bjoern M. T1 - Retrospective Analysis of Training and Its Response in Marathon Finishers Based on Fitness App Data JF - Frontiers in Physiology KW - Marathon training KW - Big data KW - Wearables KW - Training response KW - Exercise physiology Y1 - 2021 UN - https://nbn-resolving.org/urn:nbn:de:bsz:fn1-opus4-79668 SN - 1664-042X SS - 1664-042X U6 - https://doi.org/10.3389/fphys.2021.669884 DO - https://doi.org/10.3389/fphys.2021.669884 VL - 12.2021 IS - May SP - 13 S1 - 13 ER -