Home > Fitness > Sport > Running 11 December 2012 The complete guide to interval training Introduce some interval training: workouts where you alternate high-exertion exercise with periods of rest. This Guide to Interval Training walks you through the main types. 0 take a Flexibility test » Receive Health tips » Join Health24 on Facebook » Ask Fitness Expert » by voltiercreative. Browse more infographics. More in Fitness Elana Meyer tells us how to finish the Cape Town Marathon More: SportRunning advertisement Get a quote Fedhealth - What cover is right for you? Momentum - save up to 35% on healthcare advertisement Read Health24’s Comments Policy Comment on this story 0 comments Add your comment Thank you, your comment has been submitted. Logout Comment 0 characters remaining Share on Facebook Logout Comment 0 characters remaining Share on Facebook Loading comments... From our sponsors Keeping your skin soft, moisturised and winter-ready The health benefits of donating blood Hydration is vital all year round Momentum Health: an industry leader in healthcare Live healthier Stay out of trouble » Asthma danger zones 13 danger zones Teen dangers 21 dangerous things people do Here are 21 things people do without thinking. But they are dangerous, and could kill you or the people around you. Sexual health » STIs: how to stay safe Apps for gay and bi men tied to STI risk Penis bumps The STI most men get without knowing it Most guys haven't ever heard of the human papillomavirus, yet many will get it at some stage in their lives without even knowing it.