CBDB Runs – INTERVALS: Alternating 135 with 160 BPM (Grace Jones, Pharrell Williams, The Mamas & The Papas)
We are alternating between songs of around 135 BPM (easy recovery pace for me) and 160 BPM (definitely not recovery pace! Rather speed run pace). This is for me switching between 4 and 9 (out of 10) effort. It might be d








