The 24-year old Scotland international managed just 21 league appearances last season because of an ankle injury but has made it clear that he will skip a standard summer of relaxation to work on his fitness ahead of the Baggies' next campaign.
"I aim to get as fit as possible and hopefully impress the gaffer from the first day of training," he told the club's official website.
"I want to push on and show that I can establish myself in the Premier League.
"I knew I was going to have to come in and do an extra few weeks' work. It's part and parcel of what I've got to do.
"My ankle is feeling good now, and fingers crossed things keep going well as I do more rehab over the summer so that I can get back in with the other lads."