Swimming is often viewed as a complete workout… and it is, BUT…. time in the pool alone does not always build the strength, power, mobility, and resilience needed to improve your performance. Whether you swim laps for fitness, compete in masters events, train for triathlons, or simply want to feel more powerful in the water, a well-designed weight-training program can be a valuable part of your routine.
Research supports combining swimming with “dryland” (isn’t that cute, that’s what they call it!) strength work rather than relying on swimming alone. The exact “best” method varies by swimmer, stroke, experience, and goal—but the overall message is clear: smart strength work can help, and it makes sense.
At Portland Personal Training, we help swimmers develop gym programs that support their time in the water rather than leave them too sore or fatigued to swim well. The goal is not to turn every swimmer into a bodybuilder. It is to build the usable strength, joint control, and power that can carry over to more efficient strokes, stronger turns, and a more durable body.
Why swimmers benefit from weights
Each swimming stroke requires the body to produce force while staying long, stable, and streamlined. Your lats, shoulders, upper back, core, hips, glutes, and legs all contribute. When one link is weak—such as poor trunk control, limited shoulder stability, or underpowered hips—the rest of the body often has to compensate.
Weight training can improve the ability to generate force with the upper body and maintain position through the torso. A 2024 systematic review and meta-analysis reported that resistance training improved upper-limb maximal strength and front-crawl performance over 25-, 50-, 100-, and 200-meter distances in competitive swimmers. For a recreational swimmer, that may translate less into chasing a race time and more into feeling stronger through each pull, holding form longer, and leaving the pool with less fatigue.
Stronger legs matter, too. Although swimming is often thought of as an upper-body sport, the legs and hips contribute to kicking, body position, starts, turns, and push-offs from the wall. Training movements such as squats, split squats, deadlifts, step-ups, and hip hinges can help develop lower-body strength that supports a more powerful kick and better force production off the wall.
The right muscles—and movements
A useful swimmer strength program usually emphasizes pulling strength, shoulder control, core stability, hip strength, and single-leg balance. Rows, pulldowns, assisted pull-ups, and cable exercises can strengthen the back and help balance the high volume of repetitive pulling that swimming demands. A trainer may also include pressing movements, but with careful attention to shoulder comfort, technique, and overall training volume.
Core training for swimmers should be more than endless crunches. The body needs to resist unwanted rotation, excessive extension, and side-bending while transferring force from the hips to the arms. Planks, dead bugs, Pallof presses, carries, and controlled rotational work can be more relevant choices because they teach the torso to stay stable while the arms and legs create movement.
Mobility and control are equally important. Swimmers commonly need good movement through the shoulders, upper back, hips, ankles, and chest. But flexibility without stability is not the answer. Portland Personal Training can help you improve usable range of motion while building the muscular control needed to use that range safely and effectively.
Avoid the “more is better” trap
Because swimming already creates substantial training volume, adding random hard gym workouts can become counterproductive. A strength plan that leaves your shoulders exhausted before a big swim set—or leaves your legs so sore that kicking feels awkward—does not support your goal. Your dryland workouts should fit around your pool sessions, recovery needs, and season.
For many swimmers, two focused strength sessions per week is a practical starting point. One study of competitive swimmers found that two weekly dryland maximal-strength sessions over 11 weeks improved tethered front-crawl swimming force. That does not mean every swimmer needs the same exact program, but it shows that meaningful strength work does not require living in the gym.
A personal trainer can adjust exercises, sets, reps, and intensity based on whether you are in a high-volume swim block, preparing for an event, returning after time away, or simply trying to stay healthy while you enjoy the pool. For example, a masters swimmer who swims three times a week may need a very different plan from a triathlete swimming twice a week and cycling and running on the other days.
Technique matters in and out of water
A personal trainer cannot replace a qualified swim coach for stroke-specific instruction. However, the right trainer can help address the physical qualities that make good technique easier to maintain. Better hip strength can support body position. Improved upper-back strength can help counter desk posture. Greater shoulder control can make repetitive overhead motion more manageable. Stronger legs can support starts, turns, and kicking.
A trainer also provides the external feedback many people need in the gym. It is easy to rush through rows, deadlifts, lunges, or shoulder exercises with compensations that defeat the purpose of the workout. Learning the movements well, progressing gradually, and selecting exercises that fit your current abilities is more valuable than copying an advanced swimmer’s routine from social media.
If you have current shoulder pain, back pain, a history of injury, or pain that worsens during swimming or lifting, get appropriate medical or physical-therapy guidance before pushing through it. Training should help you build capacity—not ignore warning signs.
Build a stronger swim
The best strength program for swimming is individualized, progressive, and balanced with your life outside the gym and pool. You do not need complicated “swim-specific” tricks or punishing workouts. You need a plan that builds strength where you need it, improves movement quality, respects recovery, and complements the kind of swimming you love to do.
Want a smarter dryland plan for better swimming? Schedule your free training session with Portland Personal Training. We can assess your goals, current training routine, strength, mobility, and movement patterns—then help you create a practical program to build more power, stability, and confidence in the water.