The concept of conditional capacity is linked to physical performance of an individual. The conditional capacities are functional and energetic qualities developed as a result of a motor action that is carried out consciously. These capacities , in turn, condition the development of actions.

The force , the resistance , the flexibility and the speed They are conditional capabilities. When a physical activity is carried out, a capacity is executed. These capacities are innate but can be improved through physical adaptation and training .
The motor action causes certain substances to be released or exchanged in the organism . This process affects conditional capacities.
It can be said that the conditional capacities are internal to the organism and are determined by the genetics , beyond what is mentioned regarding the possibility of improvement. All people naturally develop a certain capacity for speed, flexibility, resistance and strength.
A professional athlete, for example, will have to train to fully develop these conditional capabilities. According to their discipline , you must perform specific exercises: while resistance is essential for a marathon runner, an athlete who seeks to stand out in 100-meter races will have to work at his speed. Flexibility, on the other hand, is key for a gymnast, but for a weightlifter the development of his strength will be more important.
Let's look at a more technical and abstract definition of each of these conditional capabilities:
* strength : although it is a concept that we all use in everyday speech, in the field of sport acquires a somewhat different meaning. It is not only about the ability to face heavy weights but also to carry out a series of technical gestures with the greatest possible intensity without varying the level of execution;
* resistance : another of the conditional capacities that we use every day but without giving it the same meaning as in the professional world. In this case, the resistance is what gives us the possibility of supporting a certain load exhibiting a minimal degree of fatigue. Resistance is measured based on the time taken by the activity and to the series of efforts that are accumulating throughout it;
* speed : For athletes, speed is not only the ability to move from one point to another in a short time, but also that which allows them to give adequate and rapid motor responses according to the stimuli received throughout a practice. We could say that it is similar to what in everyday speech we call "good reflexes", although in this case it demands a great job of developing And maintenance;
* flexibility : While we usually associate flexibility to gymnasts who must adopt extreme poses, this concept refers to the body's ability to adopt any form without suffering injuries . In other words, it can be said that flexibility is the sum of muscle elasticity and joint mobility. To carry out all actions required by a particular sport, minimizing the risk of injury, it is necessary to enjoy a wide range of movement.
In addition to these conditional physical capabilities there are other types of physical capabilities, such as coordinative , those that in order to give the opportunity to carry out certain movements that the sport demands, it becomes necessary to have adequate control of certain segments of the body .
In other words, when an athlete has to perform certain technical movements in a measured and precise way, conditioned by a time limit and certain characteristics of the playing space, for example, it is necessary to control specific body parts to adapt to said limitations and coordinate the Actions .