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Evidence-based GLP-1 & peptide discussion since 2023
ForumsExercise & Body CompositionHIIT vs LISS cardio on GLP-1 — 12 month update

HIIT vs LISS cardio on GLP-1 — 12 month update

MeganSA_TX Fri, Mar 6, 2026 at 7:20 AM 4 replies 742 viewsPage 1 of 1
MeganSA_TX
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Jun 2024
San Antonio, TX
Mar 6, 2026 at 7:20 AM#1

Training four times a week throughout and the scale has barely acknowledged it, which is demoralising in a way I did not expect.

What I actually want to know is 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.

3 23PharmD_Rodriguez, julia.endo, JessicaM_2024
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sarah.morrison
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California
Online
Mar 6, 2026 at 7:28 AM#2
MeganSA_TX said:
Training four times a week throughout and the scale has barely acknowledged it, which is demoralising in a way I did not expect.

Gym confidence after training weight loss: walked into a gym for the first time in 8 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. 💪

2 22roxy_nash, tony_orlando
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PurityPaulOR
Senior Member
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Mar 2024
Oregon
Mar 6, 2026 at 7:36 AM#3
sarah.morrison said:
Gym confidence after training weight loss: walked into a gym for the first time in 8 years yesterday.

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.

1 21Admin
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ben_calgary
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Oct 2024
Calgary, CA
Mar 6, 2026 at 7:44 AM#4
MeganSA_TX said:
Training four times a week throughout and the scale has barely acknowledged it, which is demoralising in a way I did not expect.

This is my experience too, for whatever a second data point is worth. I had assumed I was the exception until I read this.

50 20JakeSmashed95, NauseaFreeNow, SteveThurs and 47 others
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james_edin
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Sep 2024
Edinburgh, UK
Mar 6, 2026 at 8:26 AM#5

From the other side of the consultation, briefly.

Exercise-induced nausea amplification with training: I learned the hard way that intense exercise within 12 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: Mar 6, 2026 at 10:26 AM
49 19bbq_ray_KC, oliver_london, tane_welly and 46 others
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