A personal trainer’s job should involve much more than counting repetitions, selecting weights, and telling someone which exercise to perform next. One of the most important responsibilities of a trainer is helping clients understand why they are doing an exercise in the first place. When people understand the purpose behind an exercise, training becomes more meaningful. Instead of simply performing three sets of ten squats because their trainer told them to, they begin to understand how squatting relates to getting out of a chair, climbing stairs, picking something up, maintaining balance, and remaining independent. This becomes especially important as we get older.
Exercise Should Have a Purpose
Every exercise in a training program should answer a simple question:
How is this going to help me in everyday life?
Consider the squat. We can describe it technically as a lower-body resistance exercise, but that explanation doesn’t mean much to the average client. Instead, I might explain that the squat strengthens the quadriceps, gluteal muscles, hamstrings, calves, and core. These muscles work together every time you stand up from a chair, get off the toilet, climb stairs, or lower yourself to pick something up. Suddenly, the squat isn’t simply a gym exercise. It is practice for life. That understanding can completely change a person’s attitude toward training.
Understanding the Muscles Being Used
I also believe trainers should educate clients about the major muscle groups involved in each movement. Take a rowing exercise. Whether someone is performing a cable row, resistance-band row, or dumbbell row, the trainer can explain that the exercise primarily involves muscles of the upper and middle back, including the latissimus dorsi, rhomboids, trapezius, rear deltoids, and biceps. But don’t stop there. Explain the functional benefit. Strong back muscles help maintain posture, stabilize the shoulders, pull doors open, carry objects, and counteract the rounded-forward posture that can develop from spending too much time sitting or looking down at phones and computers. The same approach can be used with a chest press. The client should understand that the exercise primarily works the pectoralis major, anterior deltoids, and triceps. Functionally, these muscles contribute to pushing movements. We use them when pushing open a heavy door, getting up from certain positions, moving furniture, or pushing something away from the body.
Deadlifts Teach an Important Life Skill
The deadlift is another great example. Some older adults hear the word “deadlift” and immediately imagine competitive powerlifters lifting hundreds of pounds from the floor. But the movement pattern itself is extremely functional. A properly taught deadlift or hip hinge strengthens the gluteals, hamstrings, spinal erectors, core musculature, upper back, and grip. More importantly, it teaches someone how to bend and lift using the hips while maintaining control of the trunk. Think about how often we perform some version of this movement: picking up groceries, lifting a laundry basket, moving a package, gardening, or picking something up from the floor. The goal isn’t necessarily to create a powerlifter. The goal is to create someone who can safely interact with the world around them.
Balance Exercises Need an Explanation Too
Balance training is another area where explaining the “why” can improve participation. Standing on one leg might seem pointless to someone who doesn’t understand its purpose. Explain that single-leg balance challenges the muscles responsible for stabilizing the ankle, knee, hip, and trunk, including the calf muscles, tibialis anterior, quadriceps, hamstrings, gluteus medius, gluteus maximus, and core. Then connect it to everyday movement. Walking is essentially a repeated series of brief single-leg positions. Every time we take a step, one foot leaves the ground while the other leg supports the body. Now the client understands why balance training matters.
Train Movements, Not Just Muscles
Good training should certainly strengthen muscles, but functional training goes beyond individual muscles. Human movement requires groups of muscles to coordinate with one another. A step-up, for example, strengthens the quadriceps, hamstrings, gluteals, calves, and core while also challenging balance and coordination. Functionally, it prepares someone for stairs, curbs, uneven surfaces, and changes in elevation. A farmer’s carry strengthens the hands, forearms, shoulders, upper back, core, hips, and legs. But its practical purpose is even easier to understand. It prepares you to carry groceries, luggage, tools, packages, or household items while maintaining posture and balance.
Understanding Creates Motivation
One of the greatest benefits of explaining exercises is psychological. People are more likely to value something when they understand its purpose. “Do three sets of ten” provides an instruction. “These step-ups are strengthening the muscles you need to climb stairs while also improving the single-leg stability that helps protect you from falls” provides a reason. That reason matters. It creates a connection between today’s workout and tomorrow’s quality of life. This is particularly important when working with older adults. Their goals may not be bigger biceps or six-pack abs. They may want to travel, play golf, garden, play with grandchildren, walk confidently, get off the floor, carry groceries, or continue living independently. Our exercises should support those goals. And our clients should understand that connection.
A Personal Trainer Should Also Be a Teacher
My background in education has taught me something that applies perfectly to personal training: People learn better when they understand why something matters. A good trainer doesn’t simply demonstrate an exercise. A good trainer teaches. Explain the movement. Identify the major muscles involved. Demonstrate proper technique. Explain what the exercise accomplishes. Most importantly, connect that exercise to something the client wants or needs to continue doing. Instead of saying, “We’re doing squats today,” tell them: “We’re strengthening your legs and hips so getting out of a chair, climbing stairs, and maintaining your independence becomes easier.” That is a completely different message. Ultimately, exercise shouldn’t exist only inside the gym.
The gym is where we practice for life.
Every squat, row, press, carry, step-up, hinge, and balance exercise should help prepare the body for something outside those walls. When clients understand the “why,” they aren’t simply completing exercises. They understand what they are building: strength, confidence, mobility, function, and independence.