Fitness and wellness

HeartBeat technology includes a special App for Fitness purposes PulView. This non-medical Android App is geared specifically for fitness applications.

A major application "button" is devoted to Dehydration, which is of major concern to long term training, especially in hot days - for long distance runners, cyclists, etc..


Physical activity has a major effect on our physiology, health and longevity.

There are numerous studies that show the detrimental effect of sedentary life style and the advantages of physical activity.

It is known by now, that while "sitting kills - moving heals" as Dr. Vernikos excellent book suggests, too much endurance exercises can also create damages and even kill.

What is the exact dosage of physical activity to optimize gains changes with your genetics, age and environment.

Therefore, the best way is to monitor your Hemodynamics (like Cardiac Output and Systemic Vascular Resistance) during exercise and after it, to make sure that you find the optimal physical activity to your genetics and other factors.


Cardiac Output provides also best estimate for Calories and for MET

The Metabolic Equivalent of Task (MET) is a physiological measure expressing the energy cost of physical activities and is defined as the ratio of metabolic rate (the rate of energy consumption) during a specific physical activity to a reference metabolic rate, set by convention to 3.5 ml O2·kg−1·min−1 or equivalently:


1 MET is also defined as 58.2 W/m2 (18.4 Btu/h·ft2), which is equal to the energy produced per unit surface area of an average person seated at rest. Our App calculate the Body Surface Area (BSA( from your height and weight.

Metabolic rate is usually expressed in terms of unit area of the total body surface.

Originally, 1 MET was considered as the Resting Metabolic Rate (RMR) obtained during quiet sitting. MET values of activities range from 0.9 (sleeping) to 23 (running at 22.5 km/h pace). By using Cardiac Output we can get an accurate MET value and spent calories.


Using Hemodynamics for fitness and sport

To optimize your gains from fitness and physical activity, you need to be aware of your Cardiac Output, which is the best indication of the intensity of your physical activity.


Most people that are doing training are noting their Heart Rate (HR), which is an indicator of the cardiac activity, or use 3-D accelerometers to measure motion. But both measures are inaccurate. Heart Rate can be misleading as Cardiac Output depends both on the HR and Stroke Volume (How much blood is pumped in each stroke or heart beat. Sick people can have very high HR but low stroke volume, so HR in itself does not tell you what is your body effort. Also 3-D accelerometers tell you about motion of the particular place they measure

(e.g. activity bracelets measure your hand activity, not your body.

Activity like Yoga with deep breathing or weight lifting  can consume energy although the motion is minimal. Even watching an emotional (Horror) movie can take a considerable amount of energy without motion.


To optimize your training gains and cardiovascular health you want to increase your Stroke Volume and lower your HR.


Also, you want to optimize your weight loss, to be mainly fat tissues and not loose weight by loosing water or lean body tissue. This means that your training should monitor your hemodynamics and this is what the HeartWatch can provide you with.