: The objective of the study was to investigate the relationship between the level of physical activity and body composition, and the levels of motor skills and strength in overweight and obese men. : The research involved 64 men. Body composition, physical activity, motor control, Motor Control Test (MCT), and strength variables were evaluated. Body composition was assessed by DXA, and the participants were classified into two groups according to the percentage of total fat mass: greater and less than 27.65%. Physical activity was assessed using accelerometry, and motor control was measured with posturography, which provided a composite score of motor performance and postural control effectiveness. Strength was assessed using hand, leg, and back dynamometers. : The participants with a higher percentage of body fat had a lower DSI (Dynamic Strength Index) ( < 0.001) and significantly reduced PAL (physical activity level) and energy expenditure ( < 0.001). No significant differences were found in the muscle strength of the upper limbs ( = 0.06) and lower limbs ( = 0.419). With regard to MCT, there was a significant difference between groups in the backward direction ( = 0.041), with the group with the highest percentage of body fat showing lower values. : Individuals with a higher percentage of body fat tend to have lower levels of strength, physical activity, and energy expenditure, which can lead to impaired balance. The findings highlight the need for targeted interventions to improve body composition and levels of strength and physical activity, with a positive impact on general health and quality of life. Emphasis should be placed on improving physical activity levels in male individuals with a higher percentage of fat mass to improve their body composition and dynamic strength levels, which are beneficial to life, particularly to help improve postural control.