MASHdoc_SA said:The honest range is roughly 20 to 40% of total loss as lean mass without deliberate resistance training, and roughly 10 to 20% with it plus adequate…
That reframing is the part I needed. Taking it to my next appointment.
Clinical perspective, offered as context rather than as advice.
Body composition tracking via bioimpedance on lean mass (InBody scan every 3 months):
| Metric | Baseline | Month 3 | Month 6 | Month 9 |
|---|---|---|---|---|
| Skeletal Muscle (lbs) | 71 | 69 | 73 | 73 |
| Body Fat (lbs) | 98 | 71 | 55 | 43 |
| Body Fat % | 41% | 34% | 28% | 20% |
| Visceral Fat (cm²) | 148 | 113 | 83 | 58 |
Note: skeletal muscle mass dipped initially then recovered with consistent resistance training + high protein. The visceral fat reduction is where the metabolic magic happens.
sophie_paris said:TrialTracker_MD said: ...the muscle loss concern with lean mass...
Regarding lean mass: I accidentally injected my dose intramuscularly instead of subcutaneously last week (went in at wrong angle, too deep). Called my pharmacist — they said it's not dangerous but may absorb faster, potentially causing more GI effects.
Sure enough, had worse nausea that day. Lesson learned: pinch the skin properly and use the right needle length for your body composition.
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Shop Reference Standardsmike_nyc said:There is also a quality change that the scan cannot see.
Muscle fiber type changes during GLP-1-mediated weight loss, relevant to lean mass: preliminary biopsy data suggests that weight loss shifts the skeletal muscle fiber type distribution:
This "metabolic remodeling" of muscle may contribute to improved insulin sensitivity independent of total lean mass changes. The muscle you keep becomes metabolically better, even if there's less of it[1].
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