Workout Zones

Set your zones and track improvements over time.

Train more professionally by using workout zones and keep an overview of zone improvements.

Coachbox workout zones configuration
Heartrate
Jan 2025
REC Recovery 100–138 bpm
EXT Extensive aerobic 139–149 bpm
INT Intensive aerobic 158–171 bpm
V02 VO2max 179–185 bpm
Aerobic threshold
153 bpm
Anaerobic threshold
175 bpm
Heartrate
Jul 2024
REC Recovery 100–136 bpm
EXT Extensive aerobic 137–148 bpm
INT Intensive aerobic 155–169 bpm
V02 VO2max 176–183 bpm
Aerobic threshold
150 bpm
Anaerobic threshold
172 bpm
Heartrate
Jan 2023
REC Recovery 100–132 bpm
EXT Extensive aerobic 133–144 bpm
INT Intensive aerobic 150–164 bpm
V02 VO2max 171–178 bpm
Aerobic threshold
145 bpm
Anaerobic threshold
168 bpm

Historical zone data

Update athlete zones as they improve without erasing previous values. Coachbox preserves all historical zone data, allowing you to track performance evolution over time and see real progression.

Planned workout
Description

Long easy run in the #EXT zone.

Simple to use but powerful calendar integration

Create workouts using hashtags that link to preset zones and segment workouts by zone requirements. Save zone-based workouts to your library for rapid scheduling, the system automatically shows the correct zones for each individual athlete.

Time in power zones
00:0020:1540:3060:4581:00
Z1 (100 - 219 W)
01:20:18 62,82%
Z1
Z2
Z3

Zone statistics

View per-workout statistics showing time spent in each zone. Analyse longer-period zone data to verify workout execution and track performance patterns across weeks, months, and seasons.

Swimming
Cycling
Running
Walking
Strength
Rowing
Skating
Skiing
Multi-sport

Filter by sport

Create sport-specific zones for multi-sport athletes. Filter both zone lists and statistics by discipline for individualised progression insights across running, cycling, swimming, and more.

Aerobic threshold
215 W
Anaerobic threshold
285 W
VO2max heartrate
183 bpm
Max. heartrate
190 bpm

Stress score calculation based on zone thresholds

Coachbox automatically calculates stress scores based on your zone thresholds. Identify overtraining or undertraining and monitor conditional progression towards specific goals.

Frederik Van Lierde
“Coachbox helps me coach my athletes more efficiently, saving up time for my own workouts.”

Frederik Van Lierde

IRONMAN World Champion

Ready to set up training zones that grow with your athletes?

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