A workout describes training to perform. A session records a member doing training. Editing a template and changing a historical session are different operations.
The training structure
A workout contains ordered tasks and exercises. An exercise prescription can include sets, repetitions, effort, rest, and tempo. Grouped exercises and their order matter when describing supersets or other sequences.
A logged session contains the actual set records. Planned repetitions or effort are not necessarily what the athlete completed.
Reviewing a session
Use the date, completion state, and the returned set records to establish what happened. A scheduled workout is not a completed session, and an in-progress session is not finished training.
Keep exercise identity and variations consistent when comparing performances. Equipment, unilateral work, exercise changes, and units can affect whether two numbers are comparable. Use the returned metric definitions instead of inventing a volume or personal-record formula.
Effort and units
RIR and RPE are different effort scales. Preserve the scale reported by the tool. Do not silently convert one into the other.
Always label the weight unit. Repetitions, duration, distance, and assistance may have different meanings depending on the exercise. Missing effort or missing weight is unavailable information, not a zero-effort or zero-weight observation.
See data conventions for dates, units, and coverage.
Templates, clones, and history
A reusable template can be copied or associated with a program. Do not assume matching names identify the same workout, or that updating a library item rewrites a member's completed sessions.
Before changing training, establish whether the request concerns the reusable template, a scheduled workout, a current session, or a past session. Use the identifier returned by the current authorized tool.
Related workflow
Review completed training describes how to summarize training without confusing a plan with a log.