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ForumsExercise & Body CompositionTriathlon training while on tirzepatide — 12 month update Page 2

Triathlon training while on tirzepatide — 12 month update

maria_elpaso Thu, Jan 22, 2026 at 10:23 AM 7 replies 916 viewsPage 2 of 2
anders_CPH
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Jan 22, 2026 at 2:40 PM#6
kate.chem said:
Steady state is faster than people expect: half-life about five days, so you are at plateau in roughly three to four weeks rather than five.

Pushing back on kate.chem here. The "tirzepatide is simply better" summary irritates me. It is better on mean weight loss, and the cardiovascular outcome evidence is far thinner than semaglutide's. If the reason for treating is cardiovascular risk rather than weight, the evidence base points the other way.

45 15CryptoCarl, MariaRD, AussieAnna and 42 others
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DataDave
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Jan 22, 2026 at 4:20 PM#7

Adding the numbers, since they settle part of this. Practical: whatever you change, write down the date and the reason. In three months the reason is what you will have forgotten, and the reason is what makes the record worth having.

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Dr.NephBHM_UK
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Jan 22, 2026 at 6:00 PM#8
anders_CPH said:
The "tirzepatide is simply better" summary irritates me.

There is a second half to this that has not been said yet. Training does two things here and only one of them is on the scale. It protects lean mass — which is the reason to do it — and it contributes modestly to the deficit, which is the reason people start and then quit when the arithmetic disappoints them. In a deep deficit, resistance work is the priority and high-volume cardio competes with recovery.

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pat_auckland
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Jan 22, 2026 at 7:40 PM#9

Following on from rachel_ABQ — and this may be the naive question:

How much of the tirzepatide advantage is the GIP component and how much is simply that the dose ladder goes higher in receptor-occupancy terms?

Last edited: Jan 22, 2026 at 11:40 PM
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maria_elpaso
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Jan 23, 2026 at 3:41 AM#10

Reporting back.

I stayed at 10mg. Another six months, another 7kg, no new side effects, and my reading of the dose-response says the last two steps were never going to be worth what they cost me.

Last edited: Jan 23, 2026 at 9:41 AM
4 2LibrarianMeg, bri_stats, pete_manc_UK and 1 other
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