FourEleven Tech Latest Press Releases https://pressroom.prlog.org/FourElevenTech/ FourEleven Tech Latest Press Releases Exercise Scientist Turns a Personal Heart Scare into a Free Training Tool https://www.prlog.org/13170744-exercise-scientist-turns-personal-heart-scare-into-free-training-tool.html An exercise science graduate created a free calculator after an atrial fibrillation episode prompted a closer look at heart rate training.Tue, 15 Sep 2026 11:28:46 GMT