Strength and cross-training for runners

Strength training can improve running economy and performance, particularly when it uses progressive heavy resistance, plyometrics or a suitable combination. It does not guarantee injury prevention, and the best exercise depends on experience, equipment, symptoms and technique. Start with a manageable programme that supports the running rather than copying a powerlifting plan.

There is no universally best slot. Some runners place lifting after a quality run to preserve easy days; others separate it so both sessions are better. Leave enough recovery for the priority running, avoid unfamiliar heavy work close to key sessions or race day, and reduce the dose in the taper if soreness or fatigue would interfere.

Cycling, swimming and other low-impact exercise can add aerobic work with less running-specific impact. They are useful when managing total load or maintaining fitness, but they do not fully replace the tissue and skill demands of running. Choose a dose that supports recovery rather than becoming another hard session.

Daily movement can work when some days are genuinely low-load and the total week is recoverable. Complete rest can also be the right choice. Recurrent pain, worsening fatigue, sleep or mood change, menstrual disruption, repeated illness or feeling unable to take a rest day are reasons to reduce the load and seek support. The habit matters less than whether you are absorbing the training.