Biomechanics and technique in strength training

Effective gym training relies on biomechanics, which analyzes how forces act on the body and how the musculoskeletal system responds. Common errors in the weight room often involve poor joint positioning, unstable movement trajectories, or losing control during repetitions. Key mistakes include losing knee control during squats, lifting heels, separating the load from the body during deadlifts, excessive lumbar arching in military presses, and using more weight than can be controlled.

It is important to note that there is no single perfect technique for everyone; individual anatomy, limb length, and mobility dictate how an exercise should be performed. For example, individuals with longer femurs may require different torso inclinations during squats.

For older adults, specifically those between 60 and 70, strength training machines can serve as an excellent entry point. High-performance trainer Javier Abreu notes that machines stabilize the body and guide movement, allowing individuals to focus on muscle force without being limited by balance, coordination, or the fear of falling. While functional training is popular, machines like leg presses can effectively build the muscle strength necessary for daily activities, such as standing up from a chair, even when stability is not yet sufficient for free weights.