Dr.ReproEndo said:Muscle fiber type changes during GLP-1-mediated weight loss, relevant to lean mass: preliminary biopsy data suggests that weight loss shifts the…
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 | 68 | 75 |
| Body Fat (lbs) | 93 | 85 | 63 | 43 |
| Body Fat % | 43% | 34% | 28% | 22% |
| Visceral Fat (cm²) | 168 | 113 | 88 | 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.
Dr.AddMedPHL said:Agreed on the ranges, with the condition that a single DEXA is not a measurement, it is one draw from a distribution.
This answered a question I did not know how to ask.
Dr.ReproEndo said:Muscle fiber type changes during GLP-1-mediated weight loss, relevant to lean mass: preliminary biopsy data suggests that weight loss shifts the…
OMG yes. lean mass + resistance training is the combo. Can confirm.
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Browse GL BiochemAussieAnna said:I lifted three times a week throughout and still lost lean mass.
Bone density monitoring on lean mass: DEXA bone density at baseline and month 12.
Lumbar spine T-score: -0.10 → -0.9 (stable to slightly improved)
Femoral neck T-score: -0.14 → -0.10 (stable)
No significant bone loss despite 67 lbs of weight loss. Key factors: adequate calcium (1200mg/day), vitamin D (5000 IU/day), resistance training 3x/week, and adequate protein. Weight-bearing exercise is critical for maintaining bone density during rapid weight loss.
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