Decreased coupling among respiratory variables with effort accumulation Małgorzata Żebrowska, Sergi Garcia-Retortillo, Konrad Sikorski, Natàlia Balagué, Robert Hristovski, Javierre Casimiro and Monika Petelczyc EPL, 132 2 (2020) 28001 Published online: 22 December 2020 DOI: 10.1209/0295-5075/132/28001