and on the run. As long as you expect this, you shouldn't have a problem. Armed with your heart rate monitor and a little know-how, you'll be able to avoid overstressing your body in the heat or at altitude. It will help you stay within your limits, and you

Q I understand that haemoglobin levels increase following a stay at altitude. I am soon off to the Alps for a couple of months and wonder how my training will be affected. Will it make my blood thicken, potentially leading to heart attacks? I know

altitude or in extreme conditions. Consult Your GPSome countries (including France and Spain) will require you to have a letter from a doctor stating that there is no reason why you can’t run – you can find draught copies of these on some race websites

of this feature-packed wireless computer is that it measures altitude. Altitude monitoring is especially useful if you're training in hilly areas, allowing you to see just how hard your ride was. The Boardman displays current altitude, as well as the total ascent

at these altitudes (2784 metres). Taking your woolly hat to the South of France in August may seem bizarre, but runners came up against -4°C temperatures at the summit last year. And for those tending towards masochism, a separate ranking is run for those carrying

’s 10 toughest marathons. The course is 1650m above sea level, and it’s in a game reserve. I told him he was mad.He kept badgering me, until eventually I was converted to his way of thinking, much to my wife’s disapproval.Altitude was certainly going

rate monitor to get back to speed after illness and injury. Training In Heat Or At Altitude Avoid overstressing your body in the heat or at altitude by using your heart rate monitor to help you stay within your training limits. How To Use A Heart

.cardiosport.comCiclosport Hac 4 £154.99 Great cross-training tool as it’s also a bike computer that can provide readings such as speed, distance, temperature, gradients and altitude.Can store up to 64 hours of data, which can then be downloaded onto a PC. Graphical display

-mounted GPS unit, giving accurate altitude measurements and ascent and descent rates. Data can be reviewed on the watch, though you’ll need to purchase a separate Data Recorder 2 (£60) to download it on to your computer. On the downside, it took about 10

training plans. For the last three decades, exercise physiologist Jack Daniels has set the standard for designing such plans. Along the way he’s worked with dozens of elite athletes, ranging from Ryun (Daniels helped him prepare for the high altitude