# Impact of Kinnanthropometric Differences According to Non-Professional Sports Activity Practiced
## 1 Introduction  
Nowadays, sedentary behavior is defined as low energy sitting (or reclining) during waking hours, while the inactive person is the one who does not do enough physical activity [1, 2]. The United States Government recommends that we should perform muscle strengthening exercise at least two days per week. For healthy adults, at least 2 1/2 h per week of moderate intensity aerobic activity, or at least a minimum of 1 1/4 h per week of high intensity aerobic activity is suggested, or a combination of both [3].  
In recent years, there has been an increase in research focused on sedentary lifestyles and also in federative sports, and also in recreational sports [4, 5, 6, 7, 8]. This is due to the fact that healthy lifestyle habits are being promoted more and more every day. We know that physical activity improves health, while physical inactivity is often associated with poor health [4, 6, 9].  
The World Health Organization (WHO) considers anthropometry to be an inexpensive science that uses neither invasive nor painful techniques [10]. Its objective is to obtain a series of body measurements to evaluate the human body's composition and the different physical dimensions.  
The study of kinanthropometry allows one to know exactly the physical state of an individual; for example, it would allow one to know the percentage of fat that forms the body weight, classified in percentage of fat mass, bone mass, and muscle mass. This can be important for people who are physically active and for people who are not. Authors such as [PERSON] et al. (2016) suggest that physically inactive people are at greater risk of suffering poor health [11]. The Physical Activity Guidelines (2008) indicates that fatness can be reduced by regular physical activity of moderate to vigorous intensity 3 to 5 times a week, for 30 to 60 min, although other authors state that there is not enough evidence that links adiposity with sedentary behavior [3,4]. That is why we need more research using calibrated devices, because that way we could understand better the relation between sedentary behavior and health [6]. It is clear how important it is for these individuals to know their physical condition. In the case of active people who do regular professional sports or not, this can be really interesting because, on many occasions, athletes try to maintain their weight but reduce their fat percentage so that they can take nutritional measures or training guidelines. This is also applicable to muscle mass data, being able to guide different routines [12,13].  
Although there are articles that analyze anthropometry and kinanthropometry in different sports disciplines [14,15], very few have compared the body composition and somatotype of persons with non-professional sports activity with persons without sport activity. Those who have done so have focused on studying the differences between sex or race or the different life stages (child, college, and adults) [5,15,16]. Until today, we have not found studies that fully analyze the anthropometry and kinanthropometry of the population of persons without sport activity, nor the anthropometric differences between the population of persons without sport activity and the persons with non-professional sports activity of different disciplines that improve the upper or lower body in a more significant way. In fact, there is not much research comparing these sports.  
Our objective is to check the body composition and morphotype of persons without sport activity (sedentary) and persons with non-professional sports activity (basketball players and runners), in order to determine if there are differences between them. The anthropometric measurements refer to the lower and upper body since they could be indicators that allow us to promote the positive aspects of regular physical exercise in the health of people who do not do any kind of physical activity.