It's still a mystery why there's a delay between the exercise and muscle soreness.

Competition with colleagues is following us from desk to treadmill, says Olivia Parker - but at what cost?

Two minutes of hopping a day can strengthen hip bones in older people and reduce the risk of fracture after a fall, scientists have suggested.

A fartlek is a system of training for distance runners in which the terrain and pace are continually varied to eliminate boredom.

While counting calories is common, a new trend is taking health-tracking to extremes. But can you know too much about how your body works, asks Katrina Megget.

"Just because you're a yogi, doesn't mean you won't have an occasion for beer, and we're certainly interested in talking to that crowd."

A gym on Auckland's North Shore has been running classes for dog owners and their canine mates since January.

Including kids early in outdoors activities can be a challenge, but it pays health and happiness dividends.

"We all know exercise is good for our physical and mental health, but this data suggests that regular exercise may also help make you more productive."

As health junkies clamor for their next hit of breast milk, here are five other weird fitness foods to try.

There is increasing evidence that exercise often doesn’t help you lose weight. In fact, it could even make you fatter.

A growing market in the online sale of human breast milk is creating a serious health risk, doctors have warned.

4 of the best learn-to-ride bike trails for kids to find their balance.

Use these tests to check whether you're as fit as you should be for your age, and learn what you can do to improve your fitness.

Danish man sets new world record for planking after holding gruelling position for four hours and 28 minutes.

What are electrolytes, how do they work, and why do we need them? A sport scientist explains.

If you're feeling tired and run down, can exercise make you sick? And should you wait until you've completely recovered before putting those runners back on?

He is 6ft 4in (193cm), 270-pounds (122.47kgs), and has a physique befitting his recent role as Hercules.

Towel down, guys, and get a grip on your ‘sweatiquette’, writes Anna Hart.

It's a pretty straightforward piece of equipment and you've been walking and running for how many years now? How difficult can it be to try a treadmill for the first time?

The recent death of a Facebook exec's husband highlights the dangers of using distracting devices while exercising.

Carroll Du Chateau meets yoga devotees and looks at how the ancient practice has become a multibillion-dollar business.

A pole dancing couple will become rivals this weekend in a battle of grace versus strength.

Besides improving your flexibility, the ancient practice apparently has another, rather unexpected, benefit, says Maxine Frith.

I'm someone who jogs most days and boasts to his friends that he's reasonably fit, writes Jack Tame.

Only the mastectomy scars beneath his pecs reveal that the New Yorker was, in fact, born female, beginning the transition from woman to man five years ago.

Trainer and former model ate junk food and piled on 40kg — in his bid to help eradicate global obesity.

Walking may be the best exercise but being a pedestrian carries risk in the big city.