Niepokój, Jakub, et al. “THE RELIABILITY OF COMMERCIAL WEARABLE BIOSENSORS IN MONITORING TRAINING LOAD AND RECOVERY IN RUNNERS: A REVIEW OF CURRENT EVIDENCE”. International Journal of Innovative Technologies in Social Science, vol. 4, no. 3(51), Sept. 2026, https://doi.org/10.31435/ijitss.3(51).2026.6518.