What is Indoor Rowing? A Complete Overview.
Indoor rowing (also called erging) is a full-body cardiovascular exercise performed on a rowing machine, or ergometer. The Concept2® RowErg® is the gold standard — used by Olympic rowers, CrossFit athletes, and fitness enthusiasts worldwide. Indoor rowing engages 86% of your muscles, making it one of the most efficient workouts available.
A single rowing stroke activates your legs (60% of power), core (20%), and upper body (20%). This makes it ideal for building cardiovascular fitness, muscular endurance, and functional strength — all with minimal joint impact compared to running.
The Concept2® PM5™ performance monitor tracks every metric you need: pace (time per 500m), watts, stroke rate, distance, and calories. Combined with ErgUltra's Bluetooth tracking and analytics, you get a complete picture of every workout — stored, analyzed, and shared with the community.
Heart Rate Training Zones for Indoor Rowing.
Understanding training zones is essential for effective indoor rowing. Each zone targets different energy systems and produces different adaptations. ErgUltra tracks your heart rate in real time and shows which zone you are in.
Recovery
50–60% HR Max
Light paddling for active recovery. Use after hard sessions or as warm-up/cool-down. Stroke rate: 18–20 SPM.
Aerobic Base
60–70% HR Max
The foundation of endurance training. Long, steady rows at a comfortable pace. Most of your training volume should be here. Stroke rate: 20–24 SPM.
Tempo
70–80% HR Max
Sustained effort that builds lactate threshold. Typical for 30-minute pieces and race-pace preparation. Stroke rate: 24–28 SPM.
Threshold
80–90% HR Max
High-intensity intervals that push your anaerobic threshold. 2K race pace territory. Stroke rate: 28–32 SPM.
Max Effort
90–100% HR Max
Short, maximum-effort bursts. Sprint intervals and 500m tests. Use sparingly. Stroke rate: 32–40 SPM.
Concept2® Workout Plans by Level.
Whether you just unboxed your RowErg® or you are preparing for a 2K race, these structured training plans help you progress safely and effectively. For a complete 12-week program, see our Complete Indoor Rowing Training Plan for 2026.
First 4 Weeks on the RowErg®
- 3x per week, 20–30 minutes per session
- Focus: Technique and steady state (Zone 2)
- Week 1–2: 4 x 5 min / 1 min rest
- Week 3–4: 3 x 10 min / 2 min rest
- Goal: Build aerobic base and consistent stroke
Building Endurance & Speed
- 4x per week, 30–45 minutes per session
- Mix: 70% steady state, 30% intervals
- Steady: 30–40 min continuous at Zone 2
- Intervals: 8 x 500m / 1 min rest (Zone 4)
- Goal: Improve 2K time and lactate threshold
Competition Preparation
- 5–6x per week, 45–75 minutes per session
- Periodized: Base, Build, Peak, Taper phases
- Long: 60–75 min steady state (Zone 2)
- Threshold: 4 x 2K / 3 min rest (Zone 4)
- Sprint: 10 x 250m / 1 min rest (Zone 5)
How to Track Indoor Rowing Workouts with ErgUltra.
Tracking your indoor rowing workouts is essential for progress. Without data, you are training blind. ErgUltra connects to your Concept2® PM5 via Bluetooth and automatically records every session — no manual logging required.
After each workout, ErgUltra analyzes your data and provides insights: average pace, power distribution, stroke consistency, heart rate recovery, and comparison to previous sessions. Over time, you build a complete training history that reveals trends, plateaus, and breakthroughs.
Your workouts automatically sync to Strava and the Concept2® Logbook. Share your sessions with the ErgUltra community, compare with friends, and compete on leaderboards — all from one app.
Key Metrics Every Indoor Rower Should Track.
The Concept2® PM5 provides a wealth of data. Here are the most important metrics to focus on for improving your indoor rowing performance:
Pace (Split Time)
Time per 500 meters — the universal metric for comparing rowing performance. A lower split means faster rowing. Track your average and negative splits.
Power (Watts)
Direct measurement of your power output. Watts are the most objective metric because they are not affected by body weight or technique variations.
Stroke Rate (SPM)
Strokes per minute. Higher is not always better — efficiency matters. Aim for more meters per stroke before increasing rate.
Heart Rate
Pair a Bluetooth HR monitor to track your cardiovascular effort. Essential for zone-based training and monitoring recovery.
Drag Factor
The PM5's drag factor setting affects resistance feel. Track it to ensure consistent conditions across workouts and machines.
Training Volume
Total meters and minutes per week. Consistency is key — track weekly volume to ensure progressive overload without overtraining.