At what heart rate do complex motor skills begin to deteriorate?

Complex motor skills begin to deteriorate around 145 BPM due to the physiological effects of elevated heart rates on cognitive and motor function. As heart rates increase, the body experiences heightened levels of adrenaline and physiological stress, which can lead to difficulty in focusing, coordinating, and executing intricate movements.

At this threshold, individuals often find it challenging to perform tasks that require fine motor skills or precise timing. Beyond this point, stress and fatigue can further impair coordination and decision-making, making it crucial for individuals engaged in activities that require complex movements to be aware of their heart rates and manage exertion levels to maintain optimal performance.