What happens to fine motor skills when the heart rate reaches 115 BPM?

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When the heart rate reaches 115 BPM, what typically occurs is a deterioration of fine motor skills, often due to physiological stress responses. During this increase in heart rate, the body prepares for a fight-or-flight response, redirecting blood flow away from non-essential systems, which can include those involved in fine motor control. This can lead to a phenomenon where dexterity is affected negatively as the body prioritizes survival over precision tasks. Increased heart rate can result in greater muscle tension and a heightened state of arousal, which generally diminishes the ability to perform complex coordinated movements. Therefore, as a result of increased heart rate and the associated physiological changes, fine motor skills may suffer, leading to a decline in performance for tasks requiring precision and intricate control.