Sheila Love's mother Brenda Hodge, 86, has been a resident at Davislea Care Home, in Drumoyne, for just over a year.
Ms Love said she feared the changes to a 12-and-a-half hour shift pattern would damage care for residents.
As the Evening Times has reported, staff at the city's council-run homes say they are unhappy about changes to job roles, pay cuts of up to 7%, and the longer shift patterns.
The latest 48-hour strike ended last night. It followed action taken earlier this month.
Ms Love, 62, from Ibrox, said: "I am behind the staff because I can see how hard they work. They give 120% and always make sure my mum is content.
"I think the new working pattern would make things harder for everyone. The residents all know the workers and they like the continuity - but this will change everything."
Her comments came as union members warned there could be more strikes.
Brian Smith, Glasgow City Unison branch secretary, said: "Our members have now voted for us to organise further action."
A city council spokesman said: "We are pleased this strike action has concluded and we can get on with delivering services to Glasgow's older people."