The phrase "arms to demonstrate" is correct and usable in written English.
It can be used when referring to using one's arms as a means to illustrate or show something, often in a physical or metaphorical sense.
Example: "The instructor raised her arms to demonstrate the proper technique for the exercise."
Alternatives: "hands to illustrate" or "gestures to show".
As morning broke on Christmas Day, German soldiers emerged from their trenches, waving their arms to demonstrate that they had no ill intent.
It can't compete with the Harlem Shake I know," she says as she moves her shoulders and arms to demonstrate the original move on Harlem's busy 125th Street.
Under her black leggings, she wore nude fishnet stockings, under which she wore a hot-pink Cosabella thong, which she gamely exposed to one of the guests: "I'll show off my butt any time, but I refuse to go sleeveless," she said, waving her arms to demonstrate a barely detectable jiggle.
He raised his arms to demonstrate how the women carefully walked away from the scene.
"Someone came up to me the other day and they said do you remember that time when you had a fit and I said 'no'wellll we call it a funky chicken' and I said 'why?' (she mimicked flapping her arms to demonstrate what the other person did).......
All the people he was meeting must appear" - and here she extends an arm to demonstrate - "as if they're just handshakes reaching in from the edge of the screen". The image she conjures up - graphic, spooky, and all about those who are excluded in the presence of power, but whose hands reach in anyhow - could easily turn up in one of her books.
Swinging his arm to demonstrate, he made clear that if his friend insulted what was most dear to him - his mother, for example - that friend could expect a punch.
Yu et al. (2011) used a bivalent, bispecific antibody binding TFRC (transferrin receptor, CD71) with one arm and BACE1 (β-secretase-1) with the other arm, to demonstrate that low affinity antibodies to TFRC were more efficient at transcytosis than high affinity antibodies.
With this mean and standard deviation, we would need 161 per arm to demonstrate a 25% increase in VFDs.
We would need a sample size of 146 per arm to demonstrate a 25% increase in OFFDs.
Assuming a mean difference of -5.75 and standard deviation 13.25, we would need approximately 84 women in each arm to demonstrate changes in decisional conflict.
