Concepts & glossary

This is the shared vocabulary every other doc page assumes. Skim it once.

Training

Set, working set, advanced set

A set is a group of repetitions performed in one go. A working set is a real, fatiguing set toward your target volume (warmups don’t count). An advanced set is a set with extra structure: drop sets, rest-pause, supersets, pyramids, giant sets, AMRAP. verxion logs all of them as first-class.

RPE / RIR

RPE (Rate of Perceived Exertion) is a 1-10 scale of how hard the set felt. RPE 10 is failure; RPE 8 is “could do two more clean reps.” RIR (Reps in Reserve) is the same idea inverted: RIR 2 = “two more in the tank.” verxion accepts either — both get stored.

Working weight

The heaviest weight used in a set. For straight sets, this is just the load. For drop sets, it’s the top load before drops. For rest-pause, it’s the load on the heavy single. verxion uses working weight to track PRs.

Volume

Total work performed, usually as sets × reps × weight. Tracked per exercise, per muscle group, per session, per week, per month.

PR (personal record)

The heaviest weight ever logged for a given exercise. verxion tracks PRs automatically as you log.

Routine vs workout day vs session

• Routine: your weekly plan (e.g., “Push Pull Legs”)
• Workout day: one day within the routine (e.g., “Push A”)
• Session: an actual training event — a workout day performed on a specific date

Program

A program wraps multiple routines into a periodized block (e.g., 12-week strength program with phases). Programs handle deloads and phase transitions automatically.

Deload

A planned reduction in training stress — lower weight, lower volume, or both — to recover before the next push. verxion tracks deloads separately so they don’t drag down your trend lines.

Mesocycle

A block of training (usually 3-6 weeks) with a coherent focus — hypertrophy, strength, peaking. Programs are typically composed of mesocycles.

Nutrition

Diet plan

A blueprint of daily macros (calories, protein, carbs, fat) and the meals that hit them. Diet plans can be active, paused, or archived; only one is active at a time.

Meal log

A record of what you actually ate, including macros, food sources, and timing. Meal logs are independent of diet plans — you can log without a plan.

Macros

Macronutrients: protein, carbs, fat. verxion tracks all three plus total kcal (calories) per meal and per day.

NEAT / TEF / TDEE

• NEAT: Non-Exercise Activity Thermogenesis — calories burned outside training (walking, fidgeting, etc.)
• TEF: Thermic Effect of Food — calories burned digesting food
• TDEE: Total Daily Energy Expenditure — everything combined; the target your diet plan calibrates against

Refeed

A planned high-carb day during a cut to restore glycogen and hormones. verxion supports scheduling refeeds in a diet plan or activating one manually.

Adherence

How closely your actual intake matches your plan. Computed daily and rolled up weekly. Adherence above 80% is “on plan”; below 50% is “off plan.”

Platform

MCP

Model Context Protocol — the open standard for connecting AI assistants to tools and data sources. verxion is built on MCP from the ground up.

Tool

A function your AI agent can call (e.g., “log this set”, “show my last session”). verxion ships a large catalog of tools, grouped under MCP profiles.

Profile (MCP profile)

The shape of the tool catalog exposed to your client: Code Mode (one tool, default), Code Mode UI (one tool + widgets, for ChatGPT), Full (every tool individually).

Scope

An OAuth permission gate. Every tool call is checked against the scopes your token carries. See OAuth scopes.

Snapshot

A consolidated view of a time period — usually a month. Snapshots include totals, deltas vs the previous period, and an AI-generated narrative. Generated automatically on the 1st of each month.