Background: Bodybuilding is a sport in which a bodybuilder tries to build a bulky, cut and powerful body by performing various strength and endurance exercises on his muscles, as well as proper nutrition and adequate rest. The aim of the current research was two training methods (German volume and Pre-exhaustion) along with high protein diet on hypertrophy, strength, muscular endurance and anaerobic capacity in fit men.

Methods: The present study is a semi-experimental type, for this purpose, 30 men with an average age of 23.95 ± 3.73 years and a body mass index of 23.68 ± 3.35 kg/m2 who met the conditions for entering the research were selected. And they were randomly divided into three groups including 1- German volume with high protein diet, 2- pre-exhaustion with high protein diet and 3- control (without training and high-protein diet). In the pre-test session, height was measured using a scale, weight using a digital scale, body circumference using a tape measure, upper and lower body strength using a chest press and leg press with one maximum repetition, upper body and lower body muscular endurance using the number Doing chest press and leg press with 50% of a maximum repetition and anaerobic power was measured by Sargent jump method. Then interventions were made on the subjects for 6 weeks. Training sessions were held 3 times a week and each training session consisted of an hour. A high-protein diet including two grams per kilogram of body weight per day was written by a nutritionist. At the end of 6 weeks, the post-test was taken again with the same conditions. Descriptive and inferential tests were used to evaluate the data. In fact, after determining the normality of the data by the Shapiro-wilk test, the covariance and Bonferroni tests were used to compare the groups.
Results: The results showed that six weeks of German volume resistance training along with a high-protein diet increased all research variables; arm circumference, chest circumference, waist circumference, thigh circumference, upper and lower body muscular endurance, upper and lower body muscular strength and anaerobic power; became. Also, the variables of arm circumference, waist circumference, thigh circumference and upper body muscle strength increased more in the German volume resistance training group compared to the pre-fatigue group. On the other hand, six weeks of pre-fatigue resistance training along with a high-protein diet increased upper and lower body muscle endurance, upper and lower body strength, and anaerobic capacity.

Conclusion: Training with the German volume method has a greater effect on hypertrophy and muscle strength compared to the pre-exhaustion training method.