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Using a leg curl and extension machine is an effective way to strengthen the legs. Below are the correct steps to use the machine properly.

"What are your 'Big Three' numbers?" Anyone who has ever stepped foot in a gym has likely heard this phrase in one form or another. The "Big Three"—referring to the squat, bench press, and deadlift—are widely recognized as the gold standard of strength training movements. Highly acclaimed by professional athletes and fitness influencers alike, they efficiently stimulate the body's major muscle groups and help sculpt a powerful physique. When people ask about your "Big Three" numbers, they are simply asking how many kilograms you can lift when performing these specific exercises. There are even specialized formulas used to calculate these figures for the purpose of assessing one's training level; however, the "Big Three" are not always the optimal choice for everyone. Let's take a closer look below.

Fixed-weight machines are generally suitable for most people. Gyms mainly have two types of equipment: free weights, such as barbells, dumbbells, kettlebells, pull-up bars, and medicine balls; and fixed-weight machines, which are more numerous than free weights. Free weights focus more on flexibility and comprehensive training, requiring higher levels of physical fitness, strength, balance, and stability, so they are generally not recommended for beginners unless under the guidance of a coach. Fixed-weight machines, on the other hand, usually have tracks, and their movement trajectories are fixed, so there's no need to worry about balance and stability. They are easy for beginners to use and less prone to errors.

Strength training equipment is fitness equipment used to build muscle strength, and these are often designed for targeted training of specific muscle groups. They help the user to perform various strength training exercises effectively by providing adjustable resistance and are suitable for both beginners and experienced athletes.

Chest pushers and bench press benches are two kinds of fitness equipment used for chest muscle exercise, and they mainly have the following differences: First, stability and movement trajectory Second, the difficulty of training and the applicable population Third, the focus of muscle stimulation