Glossary

This glossary collects the acronyms and terms that appear in CÉNIT and in the load, wellness, risk, physio, and performance modules. If a page uses a term you don’t recognize, look it up here.

Internal and external load

ACWR — Acute:Chronic Workload Ratio

The ratio between acute load (last 7 days) and chronic load (last 28 days). It is interpreted as a “relative readiness” measure: an ACWR near 1.0 means the current week is in line with recent history; values below 0.8 (undertraining) or above 1.5 (spike) are associated with higher injury risk. In CÉNIT it is computed per player and per metric (distance, HSR, sprint, HMLD), expressed in meters per day.

Each organization picks one of two calculation methods in Settings:

• Rolling mean (default): simple averages of acute and chronic load over the window.
• EWMA (exponentially weighted moving average, Williams 2017): gives more weight to recent days and smooths out abrupt spikes.

ACWR alert thresholds are configurable per organization from Settings → Risks.

AcuteLoad

Load accumulated over the last 7 days, expressed in m/day (the metric total divided by the 7 days of the window). It is the numerator of the ACWR.

ChronicLoad

Load accumulated over the last 28 days, also in m/day. It represents the player’s recent adaptation baseline and is the denominator of the ACWR.

EWMA — Exponentially Weighted Moving Average

Alternative method to the rolling mean for computing ACWR (Williams 2017). In CÉNIT it is enabled per organization from Settings → Risks. It uses the classic Williams 2017 weights.

RMA — Rolling Mean Average

Classic ACWR method (default): simple averages over the last 7 and 28 days.

sRPE — session RPE

Internal load perceived for a session: session minutes × RPE (1–10). Used as a load proxy when no GPS data is available.

RPE — Rating of Perceived Exertion

A 1–10 scale the player completes at the end of a session to indicate how demanding it felt. It is one of the components of sRPE and an input of the daily wellness questionnaire.

GPS metrics

GPS — Global Positioning System (external load)

External load data captured by GPS devices (Catapult, StatSports, etc.) and imported into CÉNIT via CSV or Excel.

HSR — High Speed Running

Distance covered above a high-speed threshold (default >19.8 km/h, configurable per club). Key cumulative-intensity metric.

Sprint

Distance covered above the sprint threshold (default >25.2 km/h, configurable). Reported separately from HSR to highlight explosive actions.

HMLD — High Metabolic Load Distance

Distance covered during high metabolic-demand moments (metabolic power ≥25.5 W/kg, Osgnach 2010). Combines accelerations, decelerations, and speed. In CÉNIT, HMLD is the reference metric for high-intensity volume in the Load UI.

%MD — Match-day percentage

Session metric expressed as a percentage relative to the player’s match reference (the “match demand”). The reference is the average of the player’s three most demanding matches inside the window configured in Settings (default 90 days, range 90–360). The calculation applies a tier system based on minutes played (see T1/T2/T3 below).

T1 / T2 / T3 — %MD reference tiers

Classification of a player’s match appearances when building the reference:

• T1 — full starter: ≥ 75 minutes played.
• T2 — partial appearance: 45–74 minutes.
• T3 — came off the bench: 15–44 minutes.
• Excluded — under 15 minutes (noise, not counted).

If a player doesn’t have enough T1 appearances, the system uses T1+T2 (“rotational”), then T1+T2+T3 (“substitute”). This avoids a player without starts ever lacking a reference.

Vmax

Maximum speed reached by the player within a time window. Used as an individual reference for relative HSR/Sprint thresholds when the club adopts them.

Vmax%

Percentage of Vmax reached in a session over the player’s historical peak. Two safeguards apply:

• Low exposure: players with fewer than 5 recorded sessions don’t show Vmax% (no reliable statistical baseline).
• Veterans: players age ≥ 30 use the maximum of the last 12 months as the peak (not the all-time max).

CSV — Comma-Separated Values

Main GPS load import format. Each provider (Catapult, StatSports, custom Excel format) is imported from Load.

Wellness

Hooper Index

Daily four-item questionnaire (1–7 each): sleep quality, fatigue, stress, and muscle soreness. The sum gives the Hooper Index (range 4–28, where higher = worse). It is the basis of the Wellness module and one of the inputs to the Risk Advisor.

Body pain map

Body chart where the player marks pain zones with intensity. Each zone is linked to the daily wellness record.

Microcycle

Microcycle

The training week between matches. CÉNIT computes the microcycle from the matches in the calendar and labels each day with its MD-N.

MD-N (Match Day minus N)

Convention for naming microcycle days relative to the next match. MD is match day, MD-1 the day before, MD+1 the day after, and so on. The player’s agenda uses this nomenclature instead of specific event types.

Call-up

List of players called up to a match or event. In CÉNIT it is set from the calendar by selecting several players at once.

Health and return-to-play

RTP — Return To Play

Phased process for bringing an injured player back to competitive play. The Physio tab lets you build phases with reusable templates.

Injury (occurred_in)

Each injury records where it occurred: in match, in training, or other. This feeds the injury-rate calculation and the HoP report.

Absence (session_absences.reason)

A session absence has one of these reasons: injury, illness, personal, load management, coaching decision, national-team duty, or other. The reason affects the load calculation and reports.

Roles and architecture

HoP — Head of Performance

Role with full access to the organization. Typically signs the weekly report and configures the org’s settings. See Staff roles.

S&C — Strength & Conditioning

Strength & Conditioning coach. Has access to the conditioning area, dashboard, and calendar (with permissions to create, edit, and copy sessions).

PWA — Progressive Web App

Installation mode of CÉNIT on the player’s or staff member’s device. Enables push notifications and basic offline mode through a service worker. See PWA & Push.

AI — Artificial Intelligence (Anthropic SDK)

CÉNIT uses AI in three places: parsing PDFs of match reports, generating the Risk Advisor recommendation (Professional and Enterprise plans), and supporting the multi-metric load forecast.