"gentle workout" is correct and usable in written English.
You can use it to refer to any type of physical activity that is low-impact or low-intensity. For example: "I'm going to try to fit in a gentle workout before dinner tonight."
Whether you're looking for vigorous exercise or a more gentle workout, walking is easily integrated into your daily routine.
But if the thought of facing the day (and sunlight) is too disturbing to contemplate, opt for a gentle workout on the treadmill or do some weights.
Don't laugh, but on Sunday I did a gentle workout: 45min run, 1hr 15min bike ride, and a swim in the sea.
His clients include corrupt regimes, such as in Kazakhstan, and beneficiaries of his premiership, such as Sierra Leone, where Mr Blair gave liberal intervention a gentle workout, and Rwanda, to which his government gave millions in aid.
This was a far more gentle workout against what was, in essence, an Italy B team, but England recovered well once Daniele de Rossi's goal, after a quarter of an hour, had threatened another ordeal.
China were struggling to get bat on ball, the US making it look like a gentle workout.
In April of this year, Lively spoke to You magazine about how she's been staying fit since her pregnancy, saying (per the Daily Mail), "Your body goes through a lot after pregnancy and birth, so small, gentle workouts feel better.
Fifty-year-old Gail Cheney of Deer Park, an office manager for a telemarketing company, was looking for a gentler workout when she signed up at Stillness in Motion three years ago.
Strenuous exercise seems to dull the urge to eat afterward better than gentler workouts, several new studies show, adding to a growing body of science suggesting that intense exercise may have unique benefits.
Rejecting "treadmill bondage," she favors gentler workouts ("You can be a couch potato and still remain a hot tomato") and asks her readers to avoid harsh exfoliation procedures like glycolic peels, Retin-A and microdermabrasion, which she believes "ultimately accelerate aging".
Entering into silence is like a gentle aerobic workout, exercising our heart muscles, reaffirming the best of life.
