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ForumsExercise & Body CompositionCreatine kinase elevations on GLP-1 — exercise-induced or concerning? Page 3

Creatine kinase elevations on GLP-1 — exercise-induced or concerning?

Dr.Martinez Sun, Jun 7, 2026 at 4:38 PM 14 replies 204 viewsPage 3 of 3
Dr.PathRoch
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Jun 8, 2026 at 12:36 PM#11
Dr.RaviCardio said:
There is also a quality change that the scan cannot see.

That reframing is the part I needed. Taking it to my next appointment.

Last edited: Jun 8, 2026 at 6:36 PM
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Dr.RaviCardio
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Jun 8, 2026 at 2:50 PM#12

Clinical perspective, offered as context rather than as advice.

My endo's protocol for lean mass plateau: if weight loss stalls for 6+ weeks at current dose, we go through this checklist before titrating up:

  1. Food diary review — is intake creeping up?
  2. Protein check — minimum 100g/day
  3. Activity audit — steps + resistance training
  4. Sleep quality — poor sleep kills GLP-1 efficacy
  5. Stress/cortisol management

Only after addressing all of these do we increase the dose. Often fixing one lifestyle factor restarts progress without needing more medication.

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LipidDoc_ATL
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Jun 8, 2026 at 5:03 PM#13
Dr.PulmRoch said:
Training does two things here and only one of them is on the scale.

Sharing my comprehensive lab data relevant to lean mass:

BiomarkerBaselineMonth 3Month 6Month 9
Weight (lbs)288233218213
A1C (%)7.36.86.15.5
hsCRP (mg/L)8.05.01.51.4
Triglycerides21815814898

Protocol: Semaglutide 1.7mg/wk, resistance training 3x/week, protein 1.2g/kg/day.

The improvements in lean mass are clearly reflected in these numbers. The inflammatory marker reduction (hsCRP) is particularly striking.

Last edited: Jun 8, 2026 at 10:03 PM
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PeptideSynthNJ
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Jun 8, 2026 at 7:16 PM#14
Dr.Martinez said:
The intervention that works is boring and well evidenced: resistance training two to three times a week at a genuine effort, protein at 1.4 to 2.0…

Physical therapist weighing in on lean mass. I work with bariatric and metabolic patients daily.

The resistance training evidence is critical here:

The Lundgren 2024 JAMA paper[1] showed that structured resistance training preserved 73% more lean mass in GLP-1 patients vs medication alone. When discussing lean mass, we MUST include the exercise component.

My minimum prescription: 3x/week compound movements (squat, deadlift, press, row), progressive overload, 7-10K steps/day, and 1.2-1.6g protein/kg/day.

References:
[1] Lundgren JR, et al. JAMA. 2024;331(1):38-48.
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Jun 8, 2026 at 9:29 PM#15

Moderator note: a post naming a supplier has been edited. Discuss suppliers in the review sections, not here. Thread quality here is what the rules are for. Keep it up.

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