A study compared three training methods for masters trail runners, ages 35 to 55. Each group trained for 12 weeks, focusing on different combinations of circuit and uphill interval training.

Uphill intervals improved uphill economy and trail performance. Circuit training enhanced strength and power outcomes. A combined approach balanced both, but total load must allow recovery. Read more everyday miles coverage.

Runners prioritizing uphill performance should include intervals. For muscle, strength, and power, circuit or resistance work is beneficial. A combined method meets trail demands but requires careful load management. Related: Study Finds No Performance Boost from Probiotics in Runners.

This original Runner World brief is based on reporting from Marathon Handbook. Visit the source for its complete reporting, context and any later corrections.