We get this question a lot, and our belief is yes. The fundamental principles that help promote athletic performance or optimal health are similar for all, but some people are just at a different training age to others and their lifestyle may subject them to different demands.
For example, a professional rugby player will be subjected to repetitive high force contacts during a match. To reduce their risk of injury, their performance staff may want them to meet various strength standards to be confident they can endure the rigours of rugby, such as being able to back squat 2x their bodyweight (a common strength standard in rugby).
What if we have a 65 year-old client in for personal training sessions, with the main goal of preventing future injuries while doing lifestyle activities such as gardening or playing with the grandchildren? It’s still imperative to improve strength through the squat, as it's one of the foundational movement patterns for optimal health, but the load and variation can be adapted to suit the individual. In which case, the goal may be to goblet squat 1/3 x bodyweight with full range and control.
We believe the approaches developed in the world of strength and conditioning serve as the most efficient way for clients to reach their fitness goals, whether it be for weight loss, strength development, aerobic fitness, or general performance within daily life.