A study by FAU researchers and collaborators reveals that training close to failure – where you can’t do another rep – boosts muscle growth but doesn’t show any clear impacts on gaining strength.

Using a run-of-the-mill, portable and non-invasive electrical muscle stimulator while doing resistance training can yield greater gains in muscle strength and muscle mass than doing resistance training alone, according to new research.

One of the study's researchers told Newsweek the exercise molecule could one day help people unable to stay active.