International Journal of Exercise Science 12(4): 1346-1354, 2019. The purpose of this study was to investigate the effect of three months of neuromotor fitness on body composition and physical performance in untrained women. Nine untrained women (age: 38.1 ± 6.9 years; total body mass: 79.3 ± 10.7 kg; height: 161.5 ± 3.9 cm; body mass index: 30.4 ± 4.1) participated in the present study. Subjects attended the laboratory on twenty-seven occasions during a three-month period at least forty-eight hours in between sessions. Sessions 1 and 2 were used to measure morphology and body composition, and to familiarize all subjects with the experimental procedure and physical performance tests (muscle power, balance, muscular endurance, and flexibility). During sessions 3 to 26, all exercises were performed twice a week during 60-min in each session. All exercises were divided into three different circuit programs composed by12 stations with one-min exercise and a passive recovery of thirty-sec. There were significant decreases (p \u3c 0.005) for circumference in the right and left arm, pectoral, waist, abdomen, hip, and right and left calf. There were significant increases in lean body mass (p \u3c 0.005) and total body weight (p \u3c 0.005). There were significant decreases for body mass index (p \u3c 0.005), fat mass (p \u3c 0.005), and fat percentage (p \u3c 0.05). There were significant decreases (p \u3c 0.005) for skinfold in triceps, pectoral, subaxilar, shoulder blade, abdomen, hip, and thigh. There were significant increases for power test (p \u3c 0.005), muscular endurance test (p \u3c 0.005), and functional test (p \u3c 0.005). There were no significant differences for flexibility (p \u3c 0.005). The neuromotor fitness program affects the body composition and increases the physical performance in untrained women
