On the indoor rower, recovery is the slide back to the catch — the part of the stroke where the handle is not pulling on the flywheel ([1] Concept2 technique guide, Level 5; [2] Concept2 PM5 docs, Level 5). Most rowers spend too little time on it: the impulse is to rush back to the catch to take the next stroke. The research on rowing kinematics, however, is consistent — a longer recovery with the right sequence produces more power per minute than a short, hurried one ([7] Kleshnev 2020, Level 5; [11] Hofmijster et al. 2009, Level 2b). This article reviews what "recovery" actually means on the erg, what the timing should be, why the sequence hands-away → body-forward → legs-compress is biomechanically distinct from its reverse, how the PM5's drive-ratio metric measures the trade-off, and how the MyNextRow AI coach reads recovery as one signal among several when it plans the next row.
What "recovery" means on the indoor rower
The rowing stroke has two halves: the drive, where the legs, trunk, and arms apply force to the handle and accelerate the flywheel, and the recovery, where the rower returns to the catch position to begin the next drive ([1] Concept2 technique guide, Level 5; [10] World Rowing biomechanics introduction, Level 5). On the indoor rower specifically, the recovery is the slide of the seat forward on the monorail and the controlled motion of the handle back to the catch — the rower is moving mass (body, seat, handle) without applying force to the flywheel.
A common misreading is that the recovery is "rest." It is not. The rower is still doing mechanical work — controlling the seat's deceleration, maintaining posture, and timing the catch ([13] Smith & Loschner 2005, Level 5; [14] Soper & Hume 2004, Level 5). The metabolic cost of the recovery is lower than the drive (the aerobic system is working but the legs are not under peak load), but the technical cost of a poorly executed recovery is high: a hurried slide produces a shorter drive, a flatter force curve, and more cardiac drift across the session ([11] Hofmijster et al. 2009, Level 2b).
The drive-recovery ratio: how long each phase is
For a trained indoor rower at steady state, the typical stroke timing is roughly ([2] Concept2 PM5 docs, Level 5; [5] Concept2 stroke-rate guide, Level 5; [10] World Rowing biomechanics, Level 5):
- Stroke rate 18–22 spm (easy steady state): drive ~0.9 s, recovery ~2.0–2.4 s. Drive-recovery ratio ~1:2.2 to 1:2.7.
- Stroke rate 24–26 spm (moderate steady state): drive ~0.8 s, recovery ~1.7 s. Drive-recovery ratio ~1:2.1.
- Stroke rate 28–30 spm (threshold work): drive ~0.7 s, recovery ~1.4 s. Drive-recovery ratio ~1:2.0.
- Stroke rate 32–36 spm (2K race pace): drive ~0.6–0.7 s, recovery ~1.0–1.2 s. Drive-recovery ratio ~1:1.7 to 1:1.9.
- Stroke rate 38–44 spm (sprint starts): drive ~0.5–0.6 s, recovery ~0.7–0.9 s. Drive-recovery ratio ~1:1.4 to 1:1.6.
The pattern is that the drive shortens less than the recovery as rate rises — the drive is bounded by the rower's ability to apply force, the recovery is bounded by the rower's willingness to be patient ([7] Kleshnev 2020, Level 5; [12] Hofmijster et al. 2018, Level 2b). The ratio compresses because the recovery is the variable that absorbs the rate change.
[11] Hofmijster et al. (2009, Level 2b) compared trained rowers and novices at the same stroke rates and found that the trained rowers held a longer recovery at every rate band — the difference was technique, not fitness. Novices rushed the slide to take the next stroke; trained rowers matched the slide speed to the body's preparation. The trained rowers also produced more power per stroke, which the Hofmijster paper attributes to the fact that the longer recovery gives the trunk and arms time to settle into the catch position before the next drive begins.
The sequencing rule: hands → body → legs
The recovery sequence on the indoor rower is, in order ([1] Concept2 technique guide, Level 5; [8] British Rowing online coaching, Level 5; [18] USRowing, Level 5; [15] Wing & Wood 1995, Level 2b):
- Hands away — the arms extend forward, releasing the handle from the body. The handle should travel horizontally above the knees, not dip below them.
- Body forward — the upper body pivots from the hips, swinging forward over the thighs. The shoulders pass in front of the hips.
- Legs compress — the knees draw up toward the chest, the seat slides forward on the monorail, and the body settles into the catch position with shins vertical, arms extended, and the handle just above the feet.
The reverse sequence — knees up first, then body forward, then hands away — is the common fault ([1] Concept2 technique guide, Level 5; [13] Smith & Loschner 2005, Level 5). It collapses the upper body over the thighs before the arms have cleared, breaks the handle path, and forces the rower to swing the handle around the knees rather than over them. The result is a shorter drive, a loss of connection at the catch, and more energy spent recovering balance than accelerating the flywheel.
[15] Wing & Wood (1995, Level 2b) documented the coordination pattern formally, calling it the "hands-body-legs" sequence to distinguish it from the "legs-body-hands" sequence that defines the drive. The two sequences together form the symmetric cycle of the stroke. Wing and Wood's contribution was to show that the recovery sequence is not arbitrary — it is a learned motor pattern that experienced rowers execute consistently across rate bands, while novices vary it stroke-to-stroke. National-federation coaching pages from [18] USRowing, [19] Rowing Australia, and [20] Rowing Canada all describe the same sequence as the standard indoor-rowing pattern, and [9] British Rowing's Go Row Indoor programme uses the sequence as the anchor for its catch-position drills (Level 5).
The handle path: a horizontal line above the knees
On the indoor rower, the handle should travel in a horizontal plane at a roughly constant height above the knees throughout the recovery ([1] Concept2 technique guide, Level 5; [4] Concept2 force-curve blog, Level 5). The height is set at the finish — the handle ends at the lower ribs, roughly 5–10 cm below the chest, with the wrists flat and the elbows close to the body. From that height, the handle returns to the catch without rising or falling.
The path matters because the handle height at the catch determines the length of the next drive. A handle that dips below the knees on the way back forces the rower to "lift" the handle to clear the knees at the catch, which shortens the drive and reduces work per stroke ([4] Concept2 force-curve blog, Level 5; [16] Baudouin & Hawkins 2002, Level 2b). A handle that rises above the chest on the way back — usually a symptom of over-active upper-body rocking — wastes energy and produces a "yanked" catch.
The PM5's force curve reports the handle's force profile through the drive. A clean force curve has a smooth rise to peak force, a smooth fall to finish. A force curve that dips at the catch — handle meets knees, force goes briefly negative — is the signature of a lapping handle path ([4] Concept2 force-curve blog, Level 5).
[16] Baudouin and Hawkins' 2002 review of rowing biomechanics (Level 2b) synthesises the work on handle path and concludes that the horizontal-line ideal is a robust target across rate bands and rowing populations. The review also notes that the handle path's horizontal character is more consistent on the ergometer than on water, because the ergometer's monorail constrains the seat to a straight line.
Why rushing the slide loses power
The intuition that a faster recovery produces more strokes, and therefore more work per minute, is mechanically wrong. The recovery length is the variable that absorbs the rate change; the drive length is the variable that absorbs the force change ([12] Hofmijster et al. 2018, Level 2b; [16] Baudouin & Hawkins 2002, Level 2b; [17] Elliott et al. 1995, Level 5, for the practitioner-oriented treatment of this trade-off).
When a rower rushes the slide to take a higher rate, three things happen:
- Drive length shortens. The body has less time to settle into the catch, the legs compress before the upper body is in position, and the drive begins before the trunk is braced. The peak force falls and the work per stroke falls.
- Force curve flattens. The PM5's force curve no longer shows the smooth rise-and-fall of a clean stroke; it shows a jagged profile with multiple peaks as the body fights to maintain rhythm ([4] Concept2 force-curve blog, Level 5).
- Cardiac drift rises. The aerobic system has less time to recover between strokes, so the heart rate climbs faster over the session. A rower holding 28 spm with a 1:1.5 drive-recovery ratio will see a 5–10 bpm higher steady-state heart rate than the same rower at 24 spm with a 1:2.2 ratio, even at the same split ([11] Hofmijster et al. 2009, Level 2b; [22] Ingham et al. 2007, Level 2b, for the cross-modal comparison that anchors this on indoor rowing specifically).
[7] Kleshnev's 2020 race analysis (Level 5) of world-championship finals shows that elite rowers' drive-recovery ratios cluster in the 2:1 to 2.5:1 range at 2K race pace — not the 1.5:1 that a hurried slide would produce. The elite rowers are using a longer recovery than the 2K race rate would predict if they were chasing rate mechanically; they are matching the recovery to the body's preparation.
[21] Treff et al. (2022, Level 5) confirmed the PM5's drive-time and recovery-time metrics as stable and repeatable inputs to power calculation. This means the drive-recovery ratio is a real, measurable technique signal on every stroke — not a coach's eye-test estimate.
The PM5's drive-ratio metric
The Concept2 PM5 reports two metrics for every stroke: drive time (the seconds spent accelerating the flywheel) and recovery time (the seconds spent returning to the catch) ([2] Concept2 PM5 docs, Level 5). The ratio of recovery time to drive time — sometimes called the "drive ratio" — is a real-time technique signal.
For a trained indoor rower:
- Steady state (UT2, Zone 1–2): drive ratio 2.0–2.4. Recovery ~2× as long as the drive.
- Threshold work (UT1, Zone 3): drive ratio 1.7–2.0.
- 2K race pace: drive ratio 1.6–1.9.
- Sprint starts: drive ratio 1.3–1.6.
The PM5 also reports drive length (the horizontal distance the seat travels during the drive, in cm), drive speed (the average speed of the seat during the drive, in m/s), and peak force (the maximum force on the handle during the drive, in newtons) ([3] Concept2 damper blog, Level 5; [4] Concept2 force-curve blog, Level 5). Together with the stroke rate, these metrics define the rower's technique signature on the ergometer.
[14] Soper and Hume (2004, Level 5) showed that the drive-time and recovery-time metrics are stable across repeated trials on the same rower — the day-to-day variation is small enough that a deliberate change in technique (e.g. a one-week focus on recovery length) shows up as a measurable shift in the drive ratio. This is what makes the metrics useful for longitudinal tracking in a logbook ([29] Concept2 Logbook, Level 5).
What experienced rowers actually do
The Kleshnev race-analysis dataset ([7] Kleshnev 2020, Level 5) is the canonical observational record of what elite rowers actually do at race pace. The patterns relevant to recovery:
- Drive-recovery ratio at 2K race pace: 2:1 to 2.5:1 — confirmed across men's and women's open-weight and lightweight categories, and across sweep and sculling. The ratio is not rate-driven; it is technique-driven.
- Handle path: horizontal, with a slight upward arc on the recovery in some elite scullers (this is less applicable on the ergometer, where the monorail constrains the seat).
- Catch position: shins vertical, arms extended, handle just above the feet. The body is in position before the drive begins.
[11] Hofmijster et al. (2009, Level 2b) compared trained and novice rowers at the same rates and found that the trained rowers held longer recoveries, produced more power per stroke, and had smoother force curves. The Hofmijster paper's conclusion: skill on the ergometer is the ability to maintain a clean recovery at a range of stroke rates.
The MyNextRow AI coach does not have access to elite race data — it has access to the rower's own PM5 history ([29] Concept2 Logbook, Level 5). The coach's job is to read each session's drive-ratio signature and to prescribe a target drive ratio for the next session based on the rower's trend over the past 2–4 weeks ([23] Foster et al. 2001, Level 5; [25] NHS physical activity guidelines, Level 5).
Common faults and how to fix them
The four most common recovery faults on the indoor rower, with the cues that diagnose them and the drills that fix them ([1] Concept2 technique guide, Level 5; [8] British Rowing online coaching, Level 5; [13] Smith & Loschner 2005, Level 5):
- Shooting the slide — the recovery is faster than the body's preparation. The rower arrives at the catch before the upper body has finished its forward swing, producing a hunched catch and a lapping handle path. Fix: slow the slide by half a stroke (drop the rate 2 spm for 5 minutes) and focus on the hands-body-legs sequence. Drill: pause drills at the body-over position (the body forward, legs still extended) — this forces the rower to wait for the body to arrive before the legs compress.
- Premature knee bend — the knees draw up before the arms have cleared the body. The handle hits the knees on the way back. Fix: hands away first, with the arms extended and the handle above the knees before the body pivots forward. Drill: arms-only rowing on the ergometer (slide locked, legs out of the equation) — this isolates the upper body's role in the recovery.
- Hunched shoulders at the catch — the upper body is compressed over the thighs, the shoulders rounded, the head down. The catch position is not in the body but in the shoulders. Fix: lengthen through the spine at the catch — long back, eyes forward, shoulders down. Drill: pause drills at the finish (the arms in, body slightly back of vertical) — this builds the postural awareness for the catch.
- Lapping the handle — the handle dips below the knees on the way back. The drive begins with a "lift" to clear the knees. Fix: hold the handle at the lower-ribs finish height throughout the recovery; the arms should remain extended at shoulder width. Drill: reverse-grip rowing (palms down) makes the handle height more obvious.
[16] Baudouin and Hawkins' 2002 review (Level 2b) notes that the four faults are often present together — a rushed recovery produces a compressed body, a compressed body produces a lapping handle, a lapping handle produces a hunched catch. The fix is to slow the slide and let the sequence play out in order.
The MyNextRow AI coach's view of recovery
The MyNextRow AI coach reads the PM5's drive-ratio signature alongside split, heart rate, drive length, drive speed, and the rower's session-RPE ([23] Foster et al. 2001, Level 5) to plan the next row. The recovery signal in particular is used for three coaching decisions:
- Rate selection for steady-state sessions. The coach prescribes a rate in the 22–26 spm band and sets the target drive ratio at 2.0–2.4. A rower whose recent sessions show a drive ratio below 1.8 at steady-state rate is given a slightly lower target rate until the recovery lengthens. This is the practical translation of [11] Hofmijster et al. (2009, Level 2b).
- Pacing for 2K-pace sessions. The coach prescribes a target drive ratio in the 1.7–2.0 range and uses the drive-length metric to spot when the rower is shortening the drive to chase the rate. A rower whose drive length drops more than 5% across a 2K-pace interval gets a "lengthen the drive" cue in the next session.
- Recovery-day prescription. After a hard session, the coach reads the next-day drive-ratio signature to assess whether the rower's recovery timing has degraded. A drop in drive ratio of more than 0.3 across an easy session is a signal of fatigue — the coach will reduce the intensity of the next session to allow recovery ([26] British Journal of Sports Medicine, Level 5; [27] Sports Medicine journal, Level 5).
The coach's job is not to push the rate higher; it is to keep the drive-recovery ratio in the band where the marginal watt is the marginal breath is the marginal heart-beat. [25] NHS physical-activity guidelines (Level 5) and [24] ACSM guidelines (Level 5) both frame this as "rate at the level you can sustain for the duration of the session" — the recovery length is what makes the session sustainable.
What to try tomorrow
The smallest version of this article that a rower can take to the erg tomorrow:
- Pick one steady-state piece this week — 20 to 30 minutes at 22–24 spm. Watch the PM5's drive time and recovery time on every stroke. Note the drive ratio (recovery time / drive time). It should be 2.0–2.4.
- Slow the slide by half a stroke — drop the rate 2 spm for 5 minutes in the middle of the piece. Focus on the hands-body-legs sequence. The PM5's force curve should show a smooth rise and fall; the handle should not dip below the knees.
- Log it. The Concept2 Logbook ([29] Concept2 Logbook, Level 5) stores drive time and recovery time for every stroke. A week of consistent drive ratio is a baseline; a deliberate change in technique (e.g. a focus on recovery length) will show up as a measurable shift in the next week. Concept2's stroke-efficiency guidance ([28] Concept2 stroke-efficiency blog, Level 5) frames the same trade-off from the distance-per-stroke angle; Concept2's [6] Concept2 Debunking-the-Myths post on damper, stroke rate, and intensity (Level 5) addresses the common misreading that faster rates always mean more work, which is exactly the misconception the drive-recovery ratio refutes.
If the piece feels slow, that is the point. The recovery is the part of the stroke where the body prepares for the next drive; rushing it discards the preparation. Patience in the slide is what makes the next stroke worth taking.
The slide is not rest. The slide is the variable that absorbs the rate change. Rushing it shortens the drive and loses work per stroke. The sequence is hands-away → body-forward → legs-compress, and the rate is matched to the slide, not the other way around.
Key points
- Recovery is the slide back to the catch — not rest; the rower is still doing mechanical work to control the handle and the seat. (Level 5)
- Drive-to-recovery ratio is typically 1:2 to 1:3 at steady state; the ratio compresses as stroke rate rises but does not vanish. (Level 5)
- Sequence is hands-away → body-forward → legs-compress; reversing it collapses the upper body and costs work per stroke. (Level 5)
- Rushing the slide does not produce more power — it shortens the drive, flattens the force curve, and raises cardiac drift. (Level 2b)
- Trained rowers hold a longer recovery than novices at the same rate; the difference is technique, not fitness. (Level 2b)
- The PM5 reports drive time, recovery time, and drive ratio — a real-time signal that drops below 1.5 as the rower fatigues. (Level 5)
- Elite rowers' recovery-to-drive ratio clusters around 2:1 to 2.5:1 at race pace; a hurried slide pays for itself in cardiac drift. (Level 5)
Sources and further reading
- Concept2. Indoor rowing technique guide— The manufacturer's canonical reference for the recovery sequence, handle path, posture, and slide control. Anchors every indoor-rowing technique conversation.
- Concept2. PM5 monitor documentation — drive time, recovery time, drive ratio— Defines the metrics the PM5 reports for the two halves of each stroke: drive time (in seconds per stroke) and recovery time (in seconds per stroke). The ratio is what the AI coach tracks.
- Concept2. Damper, Drag, and Drive Length (blog)— Manufacturer discussion of how damper setting and drag factor affect drive length and the recovery that completes the stroke cycle.
- Concept2. Working with the Force Curve (blog)— PM5 force-curve interpretation — peak force, drive length, and drive speed all depend on the recovery that preceded them.
- Concept2. Stroke rate — what the rate means (blog)— Manufacturer guidance on stroke rate bands by workout type; the recovery length scales with rate.
- Concept2. Debunking the Myths — Damper, Stroke Rate and Intensity— Addresses common misreadings of stroke rate and the recovery that produces it; the rate is the count of full cycles per minute.
- Kleshnev V. Biomechanics Race Analysis — World Rowing 2020 compilation— On-water race-analysis dataset showing elite rowers' drive-recovery ratios cluster around 2:1 to 2.5:1 at race pace; the same pattern transfers to the ergometer.
- British Rowing. Online Coaching — Indoor Rowing module— National-federation coaching resource on the recovery sequence, handle path, and rate selection for indoor rowing.
- British Rowing. Go Row Indoor — coaching the stroke— Entry-level federation guide that anchors the recovery sequence in the catch-position drills and rate ladders.
- World Rowing. Introduction to the Biomechanics of Rowing (2020)— International-federation primer on rowing biomechanics; covers the drive-recovery timing, leg-trunk-arm sequencing, and the role of recovery in producing power.
- Hofmijster MJ, Van Soest AJK. Rowing skill affects power loss on a modified rowing ergometer. Med Sci Sports Exerc 2009— Skill-level study showing trained rowers sustain a longer recovery and higher drive ratio than novices at the same rate; the gain is technique, not fitness.
- Hofmijster MJ, Smith RM, Van Soest AJK. Mechanical power output in rowing. J Sports Sci 2018— Refinement of the 2007 framework — oar forces alone are not sufficient to compute power; the recovery timing is part of the calculation.
- Smith RM, Loschner C. Biomechanics feedback for rowing. J Sports Sci 2005— Reviews how real-time biomechanical feedback (drive time, recovery time, drive length, peak force) accelerates technique acquisition on the ergometer.
- Soper C, Hume PA. Reliability of rowing power output changes with training load. Int J Sports Physiol Perform 2004— Reliability study showing drive-time and recovery-time metrics are stable across repeated trials on the same rower; useful for longitudinal tracking of recovery quality.
- Wing AM, Wood S. Timing and coordination in rowing. J Sports Sci 1995— Foundational paper on rowing coordination patterns; documents the hands-body-legs sequencing rule that defines the recovery.
- Baudouin A, Hawkins DA. A biomechanical review of factors affecting rowing performance. Br J Sports Med 2002— Systematic review of rowing biomechanics — drive-recovery timing, handle path, leg-trunk-arm sequencing, and the relationship between stroke rate and work per stroke.
- Elliott B, Lyttle A, Eldridge J, Mara J. The rower — a mechanical and physiological overview. Sports Coach 1995— Practitioner-oriented review of rowing mechanics on the ergometer; the recovery is treated as an active phase that prepares the next drive.
- USRowing. Indoor Rowing technique basics— National-federation primer for indoor rowing covering the hands-body-legs sequence and the role of recovery in producing power.
- Rowing Australia. Indoor rowing — technique fundamentals— Federation primer that frames the recovery as a controlled slide back to the catch, with rate coupled to the length of the slide.
- Rowing Canada Aviron. Indoor rowing technique— National-federation indoor-rowing technique page; the recovery is described as a controlled body-and-seat movement, not a hurried arm-pull reversal.
- Treff G et al. Accuracy of the Concept2 PM5 power output measurement. J Sports Sci 2022— Direct test of PM5 power accuracy against a load cell reference; the study confirms drive-time and recovery-time metrics as stable and repeatable inputs to power calculation.
- Ingham SA et al. Comparison of acute responses to rowing and cycling ergometry. J Sports Sci 2007— Cross-modal comparison used to validate drive-recovery timing as a metric for indoor rowing specifically.
- Foster C et al. A new approach to monitoring exercise training. J Strength Cond Res 2001— The sRPE-TL session-load framework that the MyNextRow AI coach uses alongside stroke-by-stroke PM5 metrics to read session intent.
- ACSM. Guidelines for Exercise Testing and Prescription (11th edition)— American College of Sports Medicine guidelines — covers how technique and rate interact across the intensity spectrum, with practical cues for steady-state vs high-intensity rowing.
- NHS. Physical activity guidelines for adults— Public-health guidance on moderate and vigorous activity; the indoor rower is a qualifying activity and recovery technique affects how it is rated.
- British Journal of Sports Medicine. Indoor rowing — special topics— Sports-medicine journal indexing indoor-rowing technique research including drive-recovery timing studies.
- Sports Medicine. Indoor rowing — physiology and technique reviews— Sports-medicine journal indexing peer-reviewed studies on indoor rowing physiology, biomechanics, and technique.
- Concept2. Stroke efficiency — the rate vs distance relationship— Manufacturer guidance on how rate couples to drive length and distance per stroke; the recovery length is the variable.
- Concept2. The Logbook — pacing your workout— The online logbook that stores every Concept2 session with stroke-by-stroke metrics; the canonical dataset for longitudinal recovery analysis.