ECG and Activity Monitoring: what can we learn? Maggie Delano - PowerPoint PPT Presentation

Nov 19, 2023 •147 likes •368 views

ECG and Activity Monitoring: what can we learn? Maggie Delano maggied@mit.edu @maggied Electrocardiogram: electrical activity of your heart 16 beats in 18 seconds = 53 bpm 1/RR interval = instantaneous HR F = ma Gravity = -9.8 m/s 2 = -1g

ECG and Activity Monitoring: what can we learn? Maggie Delano maggied@mit.edu @maggied
Electrocardiogram: electrical activity of your heart
16 beats in 18 seconds = 53 bpm 1/RR interval = instantaneous HR
F = ma Gravity = -9.8 m/s 2 = -1g y . z x
Data sets: 1. Daily activities 2. Sleep
Cleaning Walk Bike Cooking Eating Work Errands Work . z x y
Respiration Heart rate: 57 bpm y . x z Sitting
Heart rate: 97 bpm Respiration . z x y Steps
Heart rate: 147 bpm Respiration . z x False steps? y
Lesson 1: HR changes a lot.
Lesson 2: HR changes are interesting, but need more data over time.
Fitbit sleep efficiency: 95% Time to fall asleep: 6 min Artifact Turn Shift Falling asleep Stomach y . x z Left side Right Side Toss/Turn
Artifact Each data point = 60 beat average Shift Turn
Heart rate NOT NOISE!!! variability
Premature beat Compensatory pause
Heart rate NOT NOISE!!! variability
Lesson 3: ECG data reveals Premature Atrial Contractions, primarily during sleep.
Takeaways
Other cool stuff: - HRV - Resp. rate - CV dynamics - Trends over time
ECG and Activity Monitoring: what can we learn? Maggie Delano maggied@mit.edu @maggied

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