Incorporate hills
Most half-marathon courses include at least some hills, so running on a treadmill or flat areas may not prepare you. Hultgren recommends including hills in at least some of your runs.
Build endurance
Running 13.1 miles is a considerable distance so it’s important to build up your endurance. Following a training plan is the best way to prepare. Most plans are at least 12 weeks.
Cross-train
Cross-training is a great way to build muscle and endurance on days you don’t run. Cross-training can include anything from lifting weights to biking.
Find the right fit
Shoes that fit properly are a must for runners. The right shoe can help prevent injury and make running long distances more comfortable. If you aren’t sure what type of shoe is best, visit a local running store for assistance.
Listen to your body
Unfortunately, running-related injuries do happen. If you start to experience pain, especially pain that lasts more than a few days or prevents you from running, stop training and see a doctor. Continuing to train with an injury could cause further damage and keep you from running.
Hydrate, hydrate, hydrate
Staying hydrated will help improve your performance and prevent cramps. If you are running long distances, there are a variety of ways to stay hydrated while you run, including water hydration vests.