Tri-spokes, disk-wheels, deep-section rims, ceramic hubs and bladed spokes - the number of wheels on the market can bewilder even the most technically minded triathlete. And if the options could leave you scratching your head, the potential cost could make you

at Loughborough University. "So there is a conditioning aspect to it and a technical aspect to it. But it also creates those race-like conditions so you are better equipped to handle tempo changes. You don't get that from more singular forms of training

GETTY IMAGESTravelling on foot might well leave behind a lighter carbon footprint than other ways of getting around. But with just a few simple tweaks to your training and racing routine it’s easy to become an even greener runner.KIT Over 1

-between, a triathlete's budget can easily become stretched to breaking point. Most bits of kit claim to make our bikes lighter, our legs faster and our training more effective, but you may wonder if you can be a triathlete and stay on the good side of your

shown them to be extra susceptible to bone-mineral loss because of their intense training.To keep your bones in peak condition, eat plenty of dairy products, or up your intake of calcium-fortified soya milk, tofu, salmon or broccoli

it was awkward wearing this one with a heart-rate monitor.Odlo Cross-Power – £32Sizes 34C to 40EColours black, whiteThis bra’s wonderfully soft material belies its technical performance. The conventional construction and wide shoulder straps initially felt

– is that they chafe, but this is usually down to poor fit, or the bra being worn out. Messem points out that many women will go through a whole marathon training schedule wearing the same bra, even though they’ll probably lose weight during that time, so the bra won

, and with a long-sleeved technical T-shirt, this year promises to be no exception. Stevenage Half-Marathon (Hertfordshire, November 2) A popular two-lap race in Hertfordshire, which comprises long stretches through the local parks and the extensive traffic

three weeks before the Edinburgh Marathon – so take it slow for a perfect last training run before taper if you're gearing up for a spring marathon. Among a small field, you'll tackle 20 miles along quiet country roads through the pretty villages

compromising your performance. Jon Alexander explored these matters while he was training for Challenge Barcelona in 2009. His plan was to race while trying to minimise his carbon footprint. He says there are three main issues: kit, diet and transport. Where