A training note such as “3–1–2–0” looks precise until two people interpret the digits differently. Tempo notation describes the timing of phases within a repetition, but the convention must be explained. Ask the coach or programme author what each position means before trying to follow it.
One convention lists lowering, a pause, lifting, and another pause. Other descriptions may be written in the order the movement is performed. An exercise that begins with lifting can therefore be confusing if the notation always begins with lowering.
Write the meaning beside the number
For a simple practice movement selected by your coach, replace the shorthand with words: lower for the stated time, pause as instructed, and return under control. The written explanation helps identify where a zero means no deliberate pause rather than permission to bounce through a position.
A letter may also appear in a programme to indicate an intended movement quality rather than an exact number of seconds. Do not guess its meaning from a different coach’s system. A short clarification is better than confidently following the wrong instruction.
Keep the rest of the exercise in view
Tempo is only one part of a session. Load, range of movement, repetitions, rest, and your ability to maintain control also matter. Changing the timing can make familiar work feel different, so avoid increasing demands simply to keep the same numbers in the log.
If discomfort, dizziness, or loss of control occurs, stop and seek appropriate guidance. A tempo target is not a reason to push through warning signs or hold your breath without instruction.
Record what you actually completed and any difficulty following the timing. For example, note that the final repetitions became faster rather than writing the planned tempo as if it happened perfectly. That makes the next conversation with a coach more useful and keeps the log connected to the session you performed.