What do you know about VO2max?

In recent years, VO2max is another popular word among runners, especially after adding this function to sports watches, in addition to professional words such as pace, heart rate, touchdown balance, touchdown time and vertical amplitude.

How to treat the maximum oxygen uptake may be explained to you: interval running training improves the maximum oxygen uptake, and the maximum oxygen uptake is positively related to running ability.

Maximum oxygen uptake VO? Max: v stands for volume, o? Is oxygen, max is the maximum value, which refers to the maximum amount of oxygen that the human body can ingest per minute during exercise, and the unit is mL/(kg? In English, the maximum oxygen consumption, maximum oxygen uptake, maximum oxygen uptake and maximum aerobic capacity all refer to the maximum oxygen uptake.

Significance of maximal oxygen uptake

The maximum oxygen uptake represents the maximum amount of oxygen that the human body can ingest per minute during strenuous exercise. We know that endurance exercise relies on oxygen to produce energy for muscle contraction. Under the same conditions, the more oxygen the human body ingests and uses, the more sugar or fat it burns, and the more power it provides for exercise.

The maximum oxygen intake of ordinary people is about 40-50. People who have more endurance training will have higher maximum oxygen uptake. Endurance athletes are over 60 or 70. 20 12, Norwegian cyclist Oscar Svencen created 97.5ml/(kg? Min) Quite amazing!

Maximum oxygen uptake data is related to endurance sports ability. A master of endurance sports will have a higher maximum oxygen uptake. People with high maximal oxygen uptake also have better endurance sports potential.

But this does not mean that people with high maximal oxygen uptake will have the best performance in endurance sports. Because human movement is a complex process, oxygen uptake is only one of the factors. Others, such as body structure, strength, nervous system, technical movements, economy of movements, training years and so on, have important influences.

Therefore, a person with a maximum oxygen intake of 60 is likely to run faster than a person with a maximum oxygen intake of 70.

How to know your maximal oxygen uptake?

1, direct test method

Also called laboratory measurement. Let the subjects run on the treadmill with special equipment. By adjusting the running speed of the treadmill, the subjects are exhausted, and then the gases exhaled by the subjects are collected by special instruments and included in the gas analyzer for analysis. The maximum oxygen uptake can be determined by the analysis results.

2. Indirect test method

The basis is that the oxygen consumption of human body is closely related to its completed power and heart rate during exercise, so the maximum oxygen uptake of subjects can be inferred from the heart rate and completed work during exercise.

(1) Bruce method

Similarly, through the treadmill and heart rate monitor, when the heart rate appears 180 beats/min, it can be concluded that the body is exhausted.

The derived formula is: Vo2max=6.70-2.28 x gender +0.056 x time (s) (healthy adults, gender: male = 1, female =2).

(2) First beat algorithm

Firsbeat maximum oxygen uptake algorithm is a patented algorithm developed and declared by Dr. Joni and his team in Finland in 20 12. Its algorithm has been widely used in smart wearable products.

This method relies on analyzing the linear relationship between oxygen consumption and running speed, which means that when running speed increases, oxygen consumption also increases. Basic anthropometric data (age, gender, height, weight, etc.) of users are required for calculation. ), heartbeat data and running speed. In the process of using GPS to capture external workload data, the estimated value of Vo2max provided by Firstbeat algorithm is relatively accurate. The algorithm has been proved to be close to the laboratory test results, and the error is less than 5%. Due to the nature of the Firstbeat algorithm, the accuracy of the algorithm is closely related to the accuracy of the maximum heart rate and running speed used in the calculation.