Background:Over the previous few decades, obesity has become more prevalent. WHO states that this global public health issue is being caused by the linear rise in obesity. A higher BMI results with a decreased overall fitness.

Objective:To determine the effectiveness of high-intensity circuit training versus low-intensity interval training on functional strength in overweight and obese reproductive females.

Methodology:A retrospective comparative Analytical cross sectional  study in which 130 overweight and obese females with  reproductive age (15- 49) were selected who were engaged in exercise program in past 2-6 months, Females having uncontrolled diabetes, thyroid disease, arthritis, cardiac diseases, asthma, hypertension, and recent trauma, females who were pregnant or using any weight loss products were not included in the study and divided into Group A and B. Group A who were doing High intensity circuit training and Group B who were doing low intensity interval training. Main outcomes were Functional strength which was measured from both groups. Data was analyzed through statistical package for social sciences (SPSS) software 20 version with 95% confidence level

Results: There were significant differences in Pushups (20.2-3.66), leg levers (20.35-4.55), burpees (17.06-4.15), Leg squats (left leg 22.35-4.61) (right leg 22.95-5.03) and skipping (29.52-6.47) between Group A and B (p value <.001).

Conclusion:This study concludes that high intensity circuit training inOverweight and obese females improved functional strength.

Index Terms:

High Intensity circuit training, low intensity interval training, Body Composition, Body mass index, Circuit based exercise, Female, Obesity, and Overweight