When it comes to trail running, sufficient running volume is certainly important, and good auxiliary training will make you get twice the result with half the effort. Cross-training can help you become a better runner.
Trail running training is important, but long-term single running exercises may cause injuries due to excessiveness.
The following are three auxiliary training methods to replace part of the running training to enhance strength, endurance, balance and flexibility.

1. Resistance training: Appropriately increase the training that can strengthen the core muscles, such as weightlifting, push-ups, sit-ups, plank support and other old-school resistance training, which can play an advantage in cross-country running balance training. Strength training also helps improve endurance.
It takes at least 2-3 times a week to be effective.
You need to change your exercise method occasionally, because the body will adapt to repetitive training, and the value of the same training will gradually decrease over time.

 2. Yoga: Yoga is the best exercise to improve balance. Yoga can also improve your flexibility and body awareness. It is recommended to do it at least once a week.

It is also important to stretch after warming up, as stretching when your muscles are tight can lead to injury.