@cjwcullen TTT athlete with @life_0f_pei ・・・ O2 Desaturation sprints...Aka when your coach decides to destroy your lungs for the day 💀 #interval20of34 #ithoughtiwasgoodatrowing #nope #breathingoptional #trainingthinktank @life_0f_pei @trainingthinktank











