Many people start the year resolving to get fit. But do we ever really think we can succeed?

We asked Prime Time's fitness columnist Mary Sheppard, the Director of Fitness Wales

ACCORDING to Mary, come the end of February only 20% of those who made a new commitment will still be training.

Mary says the high failure rate is due to a lack of self-belief.

"So many people approach the New Year with mind-set which says they say they will get fit, but in their heart they know they will give it up - as they have done many times before.

"To change behaviour we need to be positive and congratulate ourselves on the progress we are making.

"Yes, there will be set-backs and weeks when we don't fit in all the exercise we had hoped. Or we may have a week where there has been a big lunch, a cake or a celebration too many. But that does not mean we are not still committed to our goal. Life always has its ups and downs. What could be different is how you view this.

Here are some tips Mary suggests to help you change your outlook.

* Convince yourself that you will succeed. You are going to be better today than you were yesterday.

* Set yourself a realistic target. Dropping a dress size will not happen overnight.

* When shopping try to replace an unhealthy regular item with something new and healthy. This means you have taken another small step in a new direction.

* Find a strategy to help you through the difficult times.

* Every now and again try a new activity. You might not like it, but that is a lesson learned, too.

* Choose an activity you enjoy. You are far more likely to stick to any new regime if you look forward to it.

* Keep an open mind. All activity is useful - not just an organised aerobics class or gym session. Walking, cycling, shopping and DIY all help.

* Involve the family or friends. Exercising with a partner helps keep you both motivated. Going for a family bike ride or learning to play tennis with your family is fun and sociable.