DS9 "Things Past":
(Dax whirls and shoots the guard behind them, then gets shot herself. Odo fights that guard, Sisko fights Thrax. Garak shoots the guard who is throttling Odo is fighting. Sisko and Thrax trade blows, then Thrax morphs into goo and goes into a vent. They all help Dax up.) GARAK: A changeling?
SISKO: We'll figure that
How is Sisko able to stand toe to toe with the Changeling pretending to be Thrax?
We've seen changelings do unbelievable acts of physical strength. Odo stopped a runaway turbolift.
ODO: Controls aren't responding.
(Odo morphs his arms into steel piledrivers which push out the turbolift sides so it starts to rub against the side of the shaft and eventually comes to a halt.)
SHAKAAR: Well, I guess this means my tour is over.
I realize that this is a simulation going on in Odo's mind through a link. But in Odo's mind changelings are significantly stronger than a human being.
How was Sisko able to fight a changeling without being knocked out with one blow? (And actually defeating the changeling)