– and three sizes: 100g, 500g and 1,600g. 100g contains 350kcal, 26g protein, 59g carbohydrate and 1.3g fat.Contact www.scienceinsport.com; 01254 246 060

before. Running 26.2 miles places high demands on the body and you’re likely to end up with depleted fuel stores, accumulated fluid in the muscles, dehydration and perhaps some damaged muscle tissue. So, not surprisingly, you will be susceptible to injury

with a little protein: (eg High5 4:1) These products are still relatively rare but some research suggests that a little protein in a carbohydrate drink can improve performance on the run.Recovery drinks Post-run drinks usually contain around 70

calories' worth of after-dinner treats. These might range from 60 calories in an apple, to 100-150 calories in a pot of fat-free yoghurt or rice pudding, or 170 calories in a bottled beer.Say 'yes' to hot chocolate: Look at the benefits. First, it

minutes, then run 1,200m with the first two laps at 10K race pace and the last lap five seconds faster.Half-MarathonRun one mile at 10K race pace and recover with four minutes of jogging. Then run 1,200m at 10K race pace with a three-minute recovery jog

for a half: 400m, 800m, 1200m, 1600m, 2000m, each run faster than your 10K pace but not flat out. Jog 400m between each – but you can take three to four minutes for this.16. Divide 1000m into: 400m at 5K race pace, with a 400m jog; 300m at race pace

with 3-minute recoveriesKey session for 10K races: 5 x 2K with 3-minute recoveriesKey session for 10-mile races: 10 miles with 1M at marathon pace, 1M at half-marathon pace, 1M at marathon pace, 3M at 10M pace, 1M at marathon pace, 1M at 5K pace, 1M

WEEK ONE Mon Rest Tue 20-25 mins easy Wed Rest Thu 10 mins easy, then 4 x 1 min brisk with 2-min jog recoveries, then 10 mins easy Fri Rest Sat 20 mins easy Sun 30 mins easyWEEK TWOMon Rest Tue 20-25 mins easy Wed Rest Thu 10

min slow Rest 3M warm-up, then 3M fast, 1M slow. Warm down 8-12M slowWEEK B 6M steady, with bursts up hills 10 x 800m, with 2-min jog recoveries 6M easy Trackwork: warm up, then 12 x 400m at 5K pace, with short recoveries Rest 5M easy, with a few

)/Timetrial 11-min miling (5:00) 11-min miling (5:00) MILEAGE TARGET: 30MMon Mar 1 restTues Mar 2 400m, 800m, 1600m, 800m, 400m (with 200m jog recoveries)Wed Mar 3 Steady run: 75 mins (approx 6.5M)Thurs Mar 4 20 mins Fartlek (+10mins wu & cd) (approx 3.5M)Fri Mar