Final answer:
To resume the position of attention from any rest, a command is called, and individuals must immediately stop movement and stand upright in a specific posture. Maintaining attention involves a focused mindset in a conducive environment. Systems to support attention could include ergonomic designs and quiet spaces.
Step-by-step explanation:
The position of attention can be resumed from any of the rests (at ease, parade rest, stand at ease, and rest) by a called command. Traditionally, this would involve a drill instructor or leader calling out the command 'Attention'. Upon this command, the individual should immediately cease any movement and return to standing upright, heels together, legs straight without locking the knees, body erect with hips level, chest lifted and arched, and arms hanging naturally down the sides of the body with fingers curled naturally. It's a posture that signals readiness and alertness.
The cognitive process of maintaining attention, especially when considering tasks, involves certain factors. Maintaining attention requires a clear focus, which can be facilitated by having a quiet environment and comfortable posture. Systems designed to support attention might include ergonomic furniture that promotes an alert mind and calm body, or having quiet spaces designated for focused work.