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Evidence-based GLP-1 & peptide discussion since 2023
ForumsExercise & Body CompositionSwimming as primary cardio on GLP-1 — joint-friendly option

Swimming as primary cardio on GLP-1 — joint-friendly option

LeilaHI Fri, Jun 5, 2026 at 4:03 AM 4 replies 192 viewsPage 1 of 1
LeilaHI
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Honolulu, HI
Jun 5, 2026 at 4:03 AM#1

I trained through the whole thing, three times a week, and the effect on the scale was almost nothing while the effect on everything else was large.

What would genuinely help is knowing what training is actually for during a large deficit, because framing it as calorie burn sets people up to quit when the arithmetic disappoints them.

I have searched first, so if this is covered somewhere point me at it and I will read it.

40 10COA_Karl, MikeFit_NJ, InsuranceTom and 37 others
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julia.endo
Senior Member
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Feb 2024
Cincinnati, OH
Jun 5, 2026 at 4:12 AM#2
LeilaHI said:
I trained through the whole thing, three times a week, and the effect on the scale was almost nothing while the effect on everything else was large.

Exercise transformation with training: went from barely able to walk a block to completing a half marathon last Saturday.

My fitness journey alongside GLP-1 therapy:

  • Month 1-2: Walking 15 min/day
  • Month 3-4: Walking 30-45 min, started bodyweight exercises
  • Month 5-6: Joined a gym, started resistance training
  • Month 7+: Running, lifting heavy, cycling for fun

The weight loss made movement possible. The movement made more weight loss possible. Virtuous cycle in action.

39 9mark_tokyo, hans_munich, jason_sac26 and 36 others
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Dr.AddMedPHL
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Mar 2024
Philadelphia, PA
Jun 5, 2026 at 4:21 AM#3
julia.endo said:
Exercise transformation with training: went from barely able to walk a block to completing a half marathon last Saturday.

Exercise-induced nausea amplification with training: I learned the hard way that intense exercise within 24 hours of injection can make nausea much worse. The combination of delayed gastric emptying + exercise-induced blood flow redistribution is rough on the GI system.

My workaround: inject Friday evening, do low-intensity activity Saturday, and save my intense workouts for Tuesday-Thursday when the GI effects have subsided. Timing your training around your injection schedule is a real optimization strategy.

Last edited: Jun 5, 2026 at 6:21 AM
38 8mike.trainer_LA, sarah_nash92, FitDadDave and 35 others
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bri_stats
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Seattle, WA
Jun 5, 2026 at 4:30 AM#4
LeilaHI said:
I trained through the whole thing, three times a week, and the effect on the scale was almost nothing while the effect on everything else was large.

Can confirm. Same sequence, different timescale. I had assumed I was the exception until I read this.

Last edited: Jun 5, 2026 at 8:30 AM
37 7JessicaM_2024, TomFromTexas, mike.trainer_LA and 34 others
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Dr.ObesityMed
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Jun 5, 2026 at 5:15 AM#5

Clinical perspective, offered as context rather than as advice.

Gym confidence after training weight loss: walked into a gym for the first time in 10 years yesterday. Was terrified. But you know what? Nobody stared. Nobody judged. Everyone was focused on their own workout.

Started with 20 minutes on the treadmill and some machine-based resistance exercises. Nothing fancy. But I DID IT. And I'll go back tomorrow.

To anyone too intimidated to start: the hardest rep is walking through the door. Everything after that is just movement. 💪

36 6A1cHero_PHX, Dr.RenalNash, LipidDoc_ATL and 33 others
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