In this summer podcast series, Newstalk ZB and the New Zealand Herald's Go to Health podcast tackles a different health issue each week. Today, it's the changing trends in fitness, and how you can use it to your advantage. Hosted by Frances Cook.

When you're slogging away at improving your fitness you want to be sure all that effort isn't wasted.

It seems there's a new way to get fit every day. Aerial suspension ran hot for a while, with people trying yoga or strength classes while suspended in reams of silks.

There are shake weights, rolling weights, or weights you can strap onto different parts of your body.

For those who fancy themselves a bit of a ballerina, barre classes have been popular for a while now.

I love a good gimmick, and if it gets me moving, all the better.

But under all the fads, I want to know what's actually working for people, and what the experts recommend as we head into 2018.

So I called Ish Cheyne,  Head of Fitness for Les Mills.

He'd just returned from an international fitness conference, so was ready to tell us all about the fitness trends becoming more popular, the ones that are one their way out, and the difference between people who stick with the fitness habit and those who don't.

For the full interview, listen to the podcast.

If you have any questions about this podcast, or something you'd like me to look into for next time, get in touch with me. You can find me on Facebook here https://www.facebook.com/FrancesCookJournalist/ and Twitter here https://twitter.com/FrancesCook