Do muscles still grow from being pushed, no matter how short the workout is? /u/NoWitness6400 No such thing as stupid questions

For example if someone is severely weak due to being inactive for very long and they can only exercise properly for 7-10 minutes a day, will those few minutes still make them stronger if done constantly? Is pushing your muscles do their limit consistently really the only thing that matters?

For example if someone is severely weak due to being inactive for very long and they can only exercise properly for 7-10 minutes a day, will those few minutes still make them stronger if done constantly? Is pushing your muscles do their limit consistently really the only thing that matters?