What is the proven effect of anabolic androgenic steroids regarding physical performance?

The proven effect of anabolic androgenic steroids on physical performance is primarily associated with a significant increase in strength, typically falling within the range of 5-20%. These substances facilitate muscle hypertrophy by promoting protein synthesis and increasing nitrogen retention, which contributes directly to muscle growth and strength gains.

Athletes and bodybuilders have utilized anabolic steroids to achieve faster and more pronounced increases in muscle mass and strength, which supports their effectiveness in enhancing performance in strength-based activities. The increase in muscle size and strength can lead to improved performance in various sports that require power and explosiveness.

While endurance improvements, recovery times, and flexibility might be associated with other training approaches or supplements, anabolic steroids are not primarily recognized for those effects in a scientifically proven manner. The focus remains notably on their ability to enhance muscular strength.