keep someone's balance

Microsaccades Keep the Eyes' Balance during Fixation
Using Learning Technologies: Ideas for Keeping One's Balance.
BALANCE DEVICE
Keeping a Card Balance to Boost Credit Score is Dumb Advice
How don't to get out of one's depth: To keep one's balance with the Wii!
Keeping weight in balance
Keeping Balance
Keeping nutrients in balance
Keeping the balance
Searching to keep the balance in Riga's "urban tissue"