This study, titled "Effect of High Load Resistance Training with Blood Flow Restriction on Lower Limb Muscle Strength in Recreational Male Bodybuilders," will aim to investigate whether combining High Load Resistance Training (HLRT) with Blood Flow Restriction (BFR) can enhance muscle strength and circumference, potentially helping bodybuilders overcome the training plateaus often encountered at advanced levels. The study will involve 30 male bodybuilders aged between 20 and 30 years, each with a minimum of two years of strength training experience. Participants will be divided into two groups using a random allocation method. Group A will undergo HLRT combined with BFR, while Group B will receive only traditional HLRT. The primary objective of this research will be to measure changes in quadriceps and hamstring muscle strength, using a dynamometer, and muscle circumference, using a retractable measuring tape, over an 8-week intervention period. Measurements will be taken at baseline and at the end of the 8-week intervention. The study will test the hypothesis that the combined HLRT-BFR method may lead to significant improvements in muscle strength and circumference compared to HLRT alone. Descriptive statistics will be used to summarize the collected data, and appropriate statistical tests (e.g., t-tests or Mann-Whitney U-tests, depending on normality) will be performed to compare results between and within the two groups. Statistical significance will be set at p<0.05. The study is expected to last for six months and will provide new insights into optimizing strength training techniques for recreational male bodybuilders. If successful, the findings could offer evidence-based recommendations for athletes seeking to break through performance plateaus using innovative training methods like HLRT combined with BFR.