How to fit swimming into a lifting week

Swimming is easy on the legs, hard on the lungs and busy for the shoulders. Place it with that in mind and it slots into a lifting week without costing you a gym session.

By the Strand team · Updated 15 October 2026

Why swimming and lifting work well together

Swimming is the gentlest of the three hybrid disciplines on your joints. There is no impact, so it doesn't add the pounding that a long run does, and an easy swim the day after leg day often feels better than sitting still.

The catch is your upper body. Every stroke uses your lats, shoulders and chest, the same muscles you train on pressing and pulling days. A hard swim session on top of a heavy upper-body day means two tough sessions for the same tired shoulders. Most of the planning below is about avoiding that clash.

The rules for placing swims

1. Keep hard swims away from heavy upper-body days. Put at least a day between hard swim sets and your heaviest pressing or pulling session.
2. Use easy swims after leg days. Swimming barely loads your legs, so an easy session the day after squats is a good fit.
3. Lift first if you do both on one day. Do the session you care most about first. For most lifters that's the gym, with an easy swim afterwards or later in the day.
4. Separate technique from fitness. If your stroke needs work, give it a session of its own when you're fresh. Drills done while exhausted teach bad habits.
5. Add swim volume slowly. Swimming fitness doesn't always carry over from the gym or the road. Start shorter than you think you need to.

Three kinds of swim session

Easy swim

Twenty to thirty minutes of relaxed, steady swimming. You should be able to breathe comfortably every few strokes. This is the session that slots in almost anywhere, including after a gym session.

Technique swim

Short lengths with rest, mixing drills and full stroke. Common choices are catch-up drill, single-arm drill, kicking with a float and pull buoy lengths. Keep the effort low and the focus high. A coach or a club session is worth a lot here.

Harder swim

Repeated efforts with set rest, for example 8 × 50 m at a strong pace with 20 to 30 seconds' rest, or 4 × 200 m steady-hard. This is the session that builds swim fitness and the one that most needs fresh shoulders.

Sample weeks

Three gym days and one swim

A good starting point if you're new to the pool. The swim sits after leg day, where it helps rather than hurts.

Three gym days and two swims

The harder swim gets two days of space from the upper-body session on Monday and a rest day either side. Saturday's lifting session keeps pressing lighter because your shoulders had a busy Thursday.

Lift, run and swim

Six sessions is a lot. Build up to it over several weeks, and drop a session rather than squeezing it in when life gets busy. The harder swim sits two days after the upper-body session, and the day before the long run is a swim rather than a leg session, so your legs are fresh for Saturday.

Swimming and lifting on the same day

If the gym has a pool, it's tempting to do both at once. That's fine with a little thought:

• Lower body then easy swim is the easiest pairing. Your legs are tired but your shoulders are fresh, and an easy swim asks little of either.
• Upper body then swim is harder. Keep the swim short and easy, or swap it to another day.
• Swim then lift works if the swim is your priority that day. Expect your pressing and pulling to feel heavier than usual.

Eat something between sessions if they're more than an hour apart, and drink water. You sweat in the pool even though you can't feel it.

Common mistakes

• Treating every swim as a hard session. Easy swims are where you get comfortable in the water. Not every session needs to leave you gasping at the wall.
• Hard swim the day after heavy bench or pull-ups. Tired shoulders swim badly. Put a day between them.
• Skipping technique. Better technique often makes more difference in the pool than extra fitness does. A few lessons or a club session can help.
• Losing track. When gym sessions live in one place and swims in another, it's hard to see a crowded week coming.

Strand keeps gym sessions, swims and runs in one log, so the whole week sits on one screen. If you swim with a watch, swims recorded through Apple Health or Health Connect come into Strand alongside your lifting, with heart-rate zones. Strand Pro also warns you when training load stacks up across disciplines, which helps when a heavy upper-body day and a hard swim land too close together.

Common questions

Lifts and swims in one log

Strand tracks gym sessions, swims, GPS runs and nutrition in one app. Free on iPhone and Android.

This guide is general information, not medical or coaching advice. If you have an injury or health condition, speak to a qualified professional.