Kathryn Londoff, a Seacoast, N.H., trainer, runs a weekly plyometric club for runners over 55. The club focuses on strength, power, and balance through jumping drills. Londoff aims to help participants train for longevity.

The club has gained support from Olympians Ilona Maher and Maddy Price. Plyometrics improve running economy, tendon stiffness, balance, and coordination. These benefits also enhance everyday balance and reaction time for older adults. Read more everyday miles coverage.

The Plyo Club starts with a warmup and progresses to dynamic movements. Londoff emphasizes the importance of strength training for athletes. Runners can incorporate plyometric drills into their training for similar benefits. Related: Summer Workout Plan: Boost Fitness with a Trainer-Approved Routine.

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