Validation of a novel handheld lactate analyzer reveals concentration-dependent bias compared with a laboratory reference deviceApr 1, 2026·Benedikt Meixner,Manuel Matzka,Peter Renner,Silvia Achtzehn,Billy Sperlich· 0 min readTypeJournal articlePublicationBiology OpenpublicationsLast updated on Sep 14, 2026 ← Touch restrictions and player numbers during small-sided games in youth soccer players: Effects on physical and technical parameters Jun 1, 2026A comparison of lessons planned by different publicly available large language models in the context of physical education: an expert survey Mar 1, 2026 →