Share The fitness fanatic's chiselled abs were on display as he grimaced while doing the exercise. Mark, who has launched his own fitness platform Train Wright with his footballer brother Josh, also showed off his toned back as he also demonstrated pull-up on the bar. In shape: The former TOWIE star, 33, showed off his ripped physique and bulging muscles as he did a set of bicep curls with heavy dumbbells Tough work: The fitness fanatic's chiselled abs were on display as he grimaced while doing the exercise Keeping fit: Mark, who has launched his own fitness platform Train Wright wi...