Today marks the start of international fitness week, which runs from 1^st February to 7^th February. The aim of International Fitness Week is to encourage people to change their lifestyle and improve their overall fitness.

As an incentive to get involved more than 400 gyms across 15 countries are offering free training sessions for non-members.

Over here in the U.K ex Spice Girl Mel B has become the face of fitness week; The star launched International Fitness Week on Thursday, stating ''I want to encourage everyone to find what works for them and make being active part of their lifestyle.

''It's easier than you think to get totally fit and we will show you how.''

The trimmed up star will soon be hosting US TV show Dance Your Ass Off, was launching the week at a central London Fitness First gym where they are offering free sessions to visitors with passes which are available on the International Fitness Week website.

www.internationalfitnessweek.com