What allows participants to manage fatigue during the 1000m swim event?

Resting on the wall during the 1000m swim event is beneficial for managing fatigue because it provides swimmers with an opportunity to take short breaks while still allowing them to maintain their pace throughout the event. By resting on the wall, participants can catch their breath and recover briefly without completely stopping their performance. This strategy can be especially important in a longer distance event like the 1000m swim, where fatigue can accumulate.

Swimmers can utilize these moments to evaluate their energy levels and adjust their strategy as needed, ensuring they do not exhaust themselves too quickly. While other options could offer some benefits, resting on the wall specifically allows for immediate physical recovery and a moment to regain composure during the swim.