’ve enlisted the advice of some top kit experts to give you the definitive answer to your queries in our Q+A guide to keeping your gear running.SHOESQ: How can I tell when it’s time to replace my shoes?A: It’s tough – your favourite pair of shoes might feel

-to-side. This can result in discomfort, chafing and strain on the breasts' supportive tissue – the Coopers ligaments – which in turn can eventually lead to sagging.In fact, the SASI research also shows that on average, a woman's breast moves 9.08cm with every stride

am. Get there early for a good spot and you’ll also catch some of the world’s best athletes tackle the Great North Sprints and the Great North Mile Races later in the day (11.30am, 1-2.15pm). Children aged between nine and 16 are also catered

. The cost of this is at your GP’s discretion. "Your doctor might sign it for you for free or you may be required to pay a fee, the cost of which is a bit of a lottery – anything from £10 upwards." says Mike Gratton from 2:09 Events. "However

will also be on hand to offer support throughout the lead-up to the race. Many manage large groups of runners, and this can really help you to feel part of a team. You’ll also receive kit, training advice and – depending on the charity - be invited to attend

particular training session. Most monitors let you set them in one-beat increments; others only five or 10. A few monitors can help to calculate zones for you. Most can be set to beep if you stray outside your zone, and some monitors let you set and switch