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says. "If I do longer five- to eight-minute reps, I add some shorter hill sprints, or 30-second sprints just to break it up. I definitely look forward to sessions more now. Doing 10x1,000m straight can be quite hard, mentally." Combination workouts

. Youshould do tempo runs no more than once a week, and they should make up nomore than 10 to 15 per cent of your total training. VO2-maxruns VO2-max training helps you improve your running economy and your racingsharpness. These sessions are sometimes called

monitor comes in.Speed is often used to regulate threshold sessions, typically at between 10K and 10-mile pace. However, this can be hard to judge, especially when the terrain and/or environmental conditions vary from one session to the next. What’s more

1. SpeedThe Session: 4 x 40m sprints (with 3 mins recovery), then 4 x 300m sprints (with 6 mins recovery)Tony Minichiello says: "Speed training in heptathlon is crucial as there's an element of it in every event - just as there is in every race

turns of your pedal for 60 seconds.)Focus on taking on board 50-70g of carbohydrate for each hour of the ride (100-150ml of sports drink every 15 minutes).Top Tip If you take on board the right amount of food and don't ride in too high a gear, you can

) 40 1:30 3:10 6:45 (cover approx 950m) 45 1:40 3:30 7:30 (cover approx 850m) 50 1:50 4:00 8:10 (cover approx 800m) 55 2:00 4:20 8:45 (cover approx 750m) 60 2:15 4:40 9:15

Q For six months I’ve been running twice a week. I do a long Sunday run, and a hard midweek hill or interval session. Is it possible to run a 3:30 marathon with only two sessions a week? All the marathon schedules I read say to run five or six days

option does assume you’re already running a minimum of three times and 16-20 miles a week, so if you’ve never run before but you’re committed to running a 10K in four weeks’ time you’d be best to simply focus on building up the length of your runs rather

option does assume you’re already running a minimum of three times and 16-20 miles a week, so if you’ve never run before but you’re committed to running a 10K in four weeks’ time you’d be best to simply focus on building up the length of your runs rather