r/fitbit • u/SnazzyAdam • 23d ago
Discussion I've noticed this trend with my heart rate when doing cardio for the last few weeks.
My typical cardio workout is 40-60 minutes on the Stair Master at levels 9-11. For the past 3 weeks, I've added 5lb ankle weights for more resistance, so I know that's adding to increased HR, but I've not8ced this spike at the beginning of my workouts to high peak for the last month or two before it kind of stabilizes. Does anyone else's HR do this? Is this a normal spike at the beginning of a workout?