Aim: To assess the influence of age and body weight on the improvement of the physical component of quality of life in combatants participating in the course of physical and sports rehabilitation. This will be evaluated using analysis based on the SF-36 questionnaire. Materials and Methods: The study involved 40 participants of combat actions (males with an average age of 42,35 ± 8,98 years). During the period from 2020 to 2021, these participants were involved in physical and sports rehabilitation, and training for both national and international competitions in running disciplines within athletics. Results: The study developed models that describe how age and body weight influence on the dynamics in the quality of life components for combatants. Analysis of the data indicated that the model illustrating the impact of age and body weight on the absolute increase in the PHC was statistically significan (F=3,899; p=0,0286). The model that aimed to predict the increase in indicators of the mental health component as a result of the implementation of physical and sports rehabilitation measures turned out to be statistically insignificant (F=0,036; p=0,9642). Conclusions: The obtained results hold practical value for planning and implementing physical and sports rehabilitation programs for combatants