One minute of sit-ups or push ups will be very effective. My mother gets covered with aches and pains anytime she drags a rolling suitcase through the airport b

One minute of sit-ups or push ups will be very effective. My mother gets covered with aches and pains anytime she drags a rolling suitcase through the airport because it is the only time she articulates her body. Even a few push-ups, daily, would give her a massive improvement.