It is likely that if you have been practicing sports for some time, mainly running, you have noticed that the maximum capacity that our body is able to offer during a race or training depends on the time in which we demand that maximum effort from our body.
This maximum capacity that our body can resist is based on the range of pulsations of our heart. The higher the number of beats per minute, the more overloaded our body will be and if we are not in adequate physical condition this can lead to major health problems.
Because of this it is necessary that we know the heart rate ranges that we should ideally maintain for each race distance, in this way we will know what our maximum performance potential is and we will be able to face each challenge without putting our health at risk, but at the same time without feeling that we have not given the best of ourselves.
The first thing to know is the maximum range of pulsations that our heart is capable of producing. To know it in a simple way we can apply a simple equation.
It is a scientific fact that the maximum capacity of any heart is 200 beats per minute, however, for every year we live it has been shown that the heart beats once less per minute.
Thus, to know the maximum number of beats that our heart can withstand per minute, we will have to subtract our age from those 200 beats.
For example, a 40-year-old person can expose his or her heart to a maximum of 160 beats per minute, although this will also depend on the person's physical condition and state of health.
In order to have a more accurate data that adapts to our conditions, it will be necessary to perform more specific tests, such as the stress test, the maximum resting heart rate tests, the maximal test and other tests that are performed by professionals in controlled environments. Let's remember that a sedentary person of 40 years old and a high performance athlete also of 40 years old will have different pulse values, because the athlete will have already prepared his body for a certain performance.
Currently, heart rate monitors are also an excellent tool that allows us to know in a simple way how many times per minute our heart is beating. If we use the data from the heart rate monitor and the equation mentioned above, we will have a fairly accurate guto know how far we can take our heart rate in each race.
This data will be complemented with the information that we will describe below, it is important to emphasize that the measurements are based on an acceptable physical condition and this may vary from person to person.
Depending on how long a race or any physical exercise lasts, our heart will be able to withstand more or less intensity according to its maximum capacity. So, for short distance races we can take our heart almost to the limit of beats per minute, while for a marathon it is best to stay within a more controlled range of beats that allows us to cope with the effort.
The maximum heart rate percentages to which we should expose ourselves according to the distance of the race are the following:
A person who starts running should maintain a heart rate during the race, between 70 to 75% of their maximum capacity.
As you may notice the above data we have provided in percentages, but then how do we know how many beats per minute this means, we explain below.
To know the Running Frequency (HR), that is to say the heart rate at which our heart must be maintained according to the distance of the race, we need to know beforehand what our maximum heart rate (MHR) and our resting heart rate (RHR) are; these data are best obtained through professional studies, although heart rate monitors can also be of great help.
Before measuring these values, we must take into account that the best time to do so is when we are in good performance conditions, since the data may be altered if we are ill, for example.
As mentioned above, the maximum heart rate or MHR is the maximum number of heartbeats that our heart can make in one minute; this data is dictated by both our age and our physical condition. To obtain this data we can perform specific studies or use the formula we have already mentioned, subtracting our age from 200
Heart rate monitors can also give us data on how many beats our heart is making in certain exercise conditions. If we decide to use this data, it is best to take measurements over several days and average them.
The resting heart rate refers precisely to the number of times our heart beats per minute when we are not doing any physical exercise. This value is taken when we first wake up, since this is the moment when our heart is most relaxed.
As we have already said, some heart rate monitors are currently capable of measuring this value, to do so, put on the heart rate monitor before getting up or doing any other activity. Breathe deeply and stay relaxed until the measurement is complete. It is best to calculate this valor for several consecutive days to obtain more accurate data. While you are taking the measurement, make sure there are no distractions, do not talk or make any movements that may alter your heart rate.
Now that we know both values, the maximum frequency and the resting frequency, we can calculate by means of the Karvonen formula, the running frequency, as follows.
HR = (MHR - FHR) x percentage of running / 100 - FHR
Next we will give you a clearer example. Suppose you are going to run a marathon, this means that your heart rate range should be between 80 and 85% of your maximum capacity. If after calculating your heart rate per minute values you obtained that your maximum heart rate (MHR) is 160 beats per minute and your resting heart rate (RHR) is 60 beats per minute, then the above formula would apply as follows:
HR = (160 - 60) x 80/100 + 60 = 100 x 0.8 + 60 = 140
HR = (160 - 60) x 85/100 + 60 = 100 x 0.85 + 60 = 145
So, this means that to run a marathon the range of beats per minute that you should maintain is between 140 and 145 beats per minute. With this data, you can control your performance by means of the heart rate monitor and know if you are performing adequately in the race.
It is important to obtain the values of both the minimum effort and maximum effort by applying the formula twice as we have done above, so that you can stay within a safe range, without underperforming what you are capable of giving but trying not to exceed your maximum potential.
We remind you again that these data are purely indicative, as the maximum heart rate capacity may vary from person to person.
A professional athlete for example will have a resting heart rate of about 60 beats per minute, while a person who does not exercise frequently might have a resting heart rate of about 80 beats per minute.
If we are at a beginner level, we can measure our heart rate and running frequency about once a month, so we can check if we have made progress during training. On the other hand, a trained athlete can measure these values approximately every three to six months.
It is always important to maintain an adequate medical control when we want to run long distance races, this way we will know that we are in optimal health conditions to take our heart to its maximum performance.
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