This latest research indicates a little bit of daily activity could well be the most beneficial approach, at least for muscle strength. And happily, it also suggests you don't have to put in a mountain of work every day. The four-week training study had three groups of participants performing an arm resistance exercise and changes in muscle strength and muscle thickness were measured and compared. The exercise consisted of 'maximal voluntary eccentric bicep contractions' performed on a machine which measures muscle strength in each muscle contraction you would do at the gym. An eccentric contraction is when the muscle is...