But if you are coming back from injury, do spend a week or two gradually increasing your training volume, using previous weeks on the training plan as a guide. Never, ever, attempt to play 'catch up' by adding in runs you have 'missed'. If you’ve missed four weeks or more, our best advice is really to postpone your marathon if you can. If you had a goal time in mind, it's probably now unlikely to be one you can achieve. If you can't or don't want to postpone, at least have a good think about a reasonable and sensible race strategy.
