The effects of two resistance and concurrent training programs with high protein diets on physical performance, biochemical markers, and body composition in resistance trained males

To study the effects of a 16-week different resistance and concurrent training programs with two types of high-protein diets on muscle strength, power, endurance, biochemical markers in adipose tissue, liver and kidney, maximum oxygen consumption, and body composition in resistance trained males

Measurements will be collected at baseline, week 8, and after 16 weeks. Participants first will complete four preliminary testing days: on the first visit, questionnaires will be assessed; on the second visit, blood draw and body composition will be performed; on the third visit, maximal aerobic capacity (Vo2max) and performance tests will be performed.; on the fourth visit, participants will complete chest press and leg press 1RM, muscular endurance tests (75% 1RM), and muscular power.

After randomization and pre-testing, training protocols will be performed in the gym.

In terms of health status; Healthy and having no specific problems or diseases. Have an age range between 18 and 35 years. Male participants. Have a history of resistance training for at least 1 year on a regular basis (at least three training sessions per week). Have not used anabolic steroids and peptides in the past year. Being free from musculoskeletal disorders. Exclusion criteria: Musculoskeletal injuries Not following the prescribed diet Anabolic steroid injection Contributing in exercises out of prescribed ones Lack of inner desire to carry on exercise or diet intervention

Resistance training + 1.6 g/kg/day Resistance training + 3.2 g/kg/day Concurrent training + 1.6 g/kg/day Concurrent training + 3.2 g/kg/day

Muscle strength, strength, endurance, biochemical markers in adipose tissue, liver and kidney, maximum oxygen consumption, and body composition (body fat percentage , lean mass, BMC, BMD, etc.)

In this study, a simple randomization method using random number table is used. This method first uses a random number table, which is a set of numbers that have no pattern or order and which is completely generated. The researcher divides these numbers randomly between the intervention groups (both resistance training groups are the controls of concurrent training groups). With the presence of clients, the researcher begins to read the numbers in the specified order. Each participant receives its own number and is randomly assigned to either resistance training groups (2 groups: resistance training with 1.6 g/kg/day of protein and resistance training with 3.2 g/kg/day of protein ) or concurrent training groups (2 groups: concurrent training + 1.6 g/kg/day of protein and concurrent training + 3.2 g/kg/day of protein ).

This study is a double-blind study. Since the researcher and the participants should not be aware of the group and the amount of protein consumed, a third person who is not aware of the objectives of the study will do the group assignment and protein recommendation. Also, the third person will codify them randomly and then provide the researcher with the code. It should be noted that all participants will be informed about the research and objectives, but will not be given information about which group they belong to. Data analysis will also be performed by an out-of-group biostatics specialist who is not aware of the participants and group assignment.