Most people who use Kieser training are in the twilight of their lives, searching for ways to prolong their golf or tennis games, or trying to improve their mobility in retirement.

Then there is Koby Stevens who visits Kieser in South Melbourne three times a week trying to tame a body that has let him down in the last three or four years.

Stevens, 26, played 15 games in his first season at St Kilda but required significant surgery on both of his groins last September after experiencing persistent issues throughout the second half of 2017.

“I had a few little niggles last year and towards the end of last year I ended up having pretty big surgery and had both my groins operated on,” Stevens told saints.com.au on Tuesday.

“Now I’m feeling the best I’ve ever felt.

"I’ve done a lot of rehab and three times a week I’m at Kieser in South Melbourne doing a lot of work on my groins, hips and my back.

“I’m feeling as free as ever, so touch wood I can hold onto that all the way through the season.”

While it’s uncommon for professional athletes to use Kieser, Stevens isn’t the only player at Linen House Centre or in the competition that has used the German designed machine program.

Star midfielder David Armitage also uses Kieser several times a week as he looks to overcome the lingering groin issues that limited him to just two appearances last year.

“Kieser is a little bit different; it’s a place for chronic back issues,” Stevens said.

“There are a few boys that do it and I know a lot of other players from other teams do it as well.

“They are special machines that are setup to target the little areas in your back and groins that you can’t target with normal weights training.”