Soreness After a New Rowing Block: What to Do About It

You finish a good session on Tuesday. On Thursday you notice that sitting down at your desk takes a bit more thought than usual, and that the first few strokes of the warm-up feel as though the handle is being pulled out of your hands. Nothing is wrong. This is the ordinary cost of starting a new block, and it arrives on a schedule you can learn.

What soreness is, and what it is not

The textbook description of delayed-onset muscle soreness starts with eccentric work: when a muscle is loaded while it is being lengthened, it is damaged more often and more severely than the same force applied while it is shortening [1] Cheung 2003. Rowing is no exception to that rule, but the rule lands somewhere else in the stroke: on the recovery, not on the drive. The drive is the shortening half of the stroke: the legs extend and the arms pull the handle in. The recovery is the lengthening half, and the controlled way back to the catch is where the lats, arms and trunk are lengthened under load, and that is why a new block lands where it lands.

The machinery explains the strange specific complaints. The damage appears to start in the sarcomeres, the contractile units that slide past each other, and it travels out to the structures that tell you where your limbs are. Muscle sense organs and proprioception are disturbed along with the fibres themselves [2] Proske & Morgan 2001. That is why a sore rower often says their technique has gone off, and why it can be true that the stroke felt worse on Thursday even though nothing about the machine changed.

The useful part of the mechanism is that it does not happen twice the same way. A second bout of the same eccentric work a week later produces much less damage, because the muscle has adapted [2] Proske & Morgan 2001. Recent work describes the same effect from a different angle, treating soreness as a multifactorial neurophysiological response rather than simply the consequence of muscle damage, with chronic training reducing it through that repeated-bout adaptation [3] Jemni 2026.

So: soreness is a real physiological event with a timetable, and it is a poor measure of how your training is going. A session that leaves you sore for three days and a session that leaves you sore for one are not directly comparable, and neither of them is a score.

Why the first block is the one that hurts

The timing is not arbitrary. DOMS is most prevalent at the start of a season, when athletes return to training after a period of reduced activity, and it is also common the first time an athlete is introduced to a new activity regardless of the time of year [1] Cheung 2003. A rower coming back after three weeks off and a rower starting their first ever block are running the same experiment.

Two things decide how much you get. The first is how eccentric the work is. The second is how intense and how long it is, because both feed into onset [1] Cheung 2003. The rowing-specific part is where that lengthening happens, and on the erg it is the controlled recovery back to the catch that lengthens the lats, arms and trunk under load. So a block that adds leg-drive emphasis, a higher rate, or a longer piece raises the bill in the same way, because each of them adds work to the stroke, and the recovery is where that work is paid for.

The practical consequence is already in the literature: eccentric exercises and novel activities should be introduced progressively over a period of one or two weeks, precisely to reduce impairment and disruption [1] Cheung 2003. Not a smaller version of your plan. A smaller version, for longer.

What actually helps

Move, gently. Exercise is the most effective means of alleviating pain during DOMS, though the analgesic effect is temporary [1] Cheung 2003. That is a smaller claim than it sounds and a more useful one: light movement does not clear the soreness, it makes the sore window easier to move through.

Row, but do less. For athletes who have to train daily, the recommendation is to reduce the intensity and the duration of the session for one or two days after an intense DOMS-inducing effort, or to work the parts of the body that are less affected [1] Cheung 2003. On an ergometer this is easy to do badly, because the machine will happily let you row hard on bad legs. Put the rate down, cut the length, and keep the stroke smooth.

Sleep. One night of total sleep deprivation reduced muscle protein synthesis by 18 per cent in healthy adults, raised cortisol by 21 per cent and dropped testosterone by 24 per cent, and the authors concluded that a single night without sleep is enough to produce anabolic resistance and a procatabolic environment [8] Lamon 2021. That was a laboratory study of acute total deprivation, not of a normal night's short sleep, so read it as a direction rather than a dose. The practical reading is that the sleep you skip during the new block is the sleep the block is being built on.

Protein. The International Society of Sports Nutrition puts daily protein for most exercising people at 1.4 to 2.0 g per kilogram of body weight, with 0.25 g per kilogram, or 20 to 40 g, per serving, spread every three to four hours, and notes that the anabolic effect of exercise lasts at least 24 hours [9] Jäger 2017. For a rower in a soreness window this is a background condition rather than a treatment. Eat like you are training, because you are.

What does not work, and what is not worth it

Stretching. The Cochrane review on stretching and soreness found that pre- and post-exercise stretching does not produce clinically important reductions in DOMS in healthy adults, with pooled effects close to zero and the quality of the evidence low to moderate [6] Herbert 2011. Stretching is a fine thing to do. It is not a soreness intervention.

Anti-inflammatories. This one needs care, because the confident version of the claim is wrong in both directions. High-dose NSAIDs may reduce muscle damage and soreness, but they also attenuate the adaptive processes and should not be prescribed for long-term treatment of exercise-induced muscle damage [4] Howatson & van Someren 2008. That is the argument against making them a habit. But the stronger claim, that painkillers quietly wreck your training, is not supported by the chronic data: studies lasting one and a half to four months found no interfering effect of COX inhibitors on muscle adaptation to resistance training, and in older individuals a substantial enhancement of muscle mass and strength has been observed [5] Trappe & Liu 2013. The honest position is that there is no good reason to take them through a training block, and no solid evidence that the habit costs you the adaptation.

The gym membership for your knees. Cold water, compression and massage all sit in the same drawer, and the evidence for each is thinner than the marketing. The one with a genuine argument on both sides is cold water, and it is worth a section of its own.

The cooling question

The case for cold water is that it works on the symptom. An umbrella review of fifteen systematic reviews covering 161 studies found that post-exercise cold-water immersion reduced muscle soreness for up to 96 hours and lowered creatine kinase between 24 and 72 hours, and that protocols of 10 to 15 minutes at 10 to 15 °C appear to be the most effective [7] Berjisian 2026. The quality of that evidence, though, is low to very low, and the same review found that cold water did not improve muscular strength performance and impaired strength and hypertrophic gains with chronic use [7] Berjisian 2026. Its conclusion is the useful part: cold water confers outcome-specific recovery benefits but may impair resistance training adaptations with chronic use, which supports a periodised, context-driven approach rather than routine application after every session [7] Berjisian 2026.

Where does that leave an indoor rower? If there is a hard session today and a test or a race tomorrow, cooling is a reasonable way to buy yourself a better-feeling tomorrow. If you are building a block and you want the muscle to respond to it, making it a habit is the version with the least support. On any of this the honest position is that the evidence is thin, the protocols vary, and the effect that is well described is on how you feel rather than on what you can do.

Soreness, or something else

DOMS is not dangerous in itself, but it is not harmless either, because it changes how you move. It reduces range of motion and peak torque, and it alters muscle sequencing and recruitment patterns, which puts unaccustomed stress on ligaments and tendons, and those compensatory patterns can raise the risk of further injury if you return too early [1] Cheung 2003.

Two things are worth separating from ordinary soreness.

The acute one. Exertional rhabdomyolysis is a potentially life-threatening condition, and unaccustomed exercise is one of its listed causes. The clinical point is simply that its basic signs have to be recognised so that prompt treatment can be administered [11] Rawson 2017. Across the clinical literature the main manifestations are weakness, muscle pain and tea-coloured urine [12] Huerta-Alardín 2005. For a rower, the signs worth knowing are severe muscle pain out of proportion to the effort, swelling, weakness, and urine the colour of tea. If those appear, this is not soreness, and the answer is medical attention rather than another session.

The slow one. If the fatigue does not settle after a week of easier sessions, the question stops being about DOMS and starts being about whether you are recovering at all. The joint consensus on overtraining is blunt about how hard this is: the distinction between non-functional overreaching and overtraining syndrome is very difficult, depends on the clinical outcome and on exclusion diagnosis, and the keyword in recognising overtraining is prolonged maladaptation. Diagnosis is by exclusion, of organic disease, of negative energy balance, of insufficient carbohydrate or protein intake, of iron or magnesium deficiency, and no single hormonal, performance, psychological or biochemical marker is accepted [10] Meeusen 2013. The practical version for a rower is that a block which leaves you sore for months, with a flat or falling result, is a recovery problem rather than a fitness problem.

A plan for the next block

• Add the new thing over one to two weeks, not over one session [1] Cheung 2003.
• Expect the worst of it two days out, and put the hard session where it lands on your legs rather than where it lands on the calendar.
• Row through the peak, gently: shorter, lower rate, smooth stroke [1] Cheung 2003.
• Protect the sleep as if it were a session, because the same week you add load is the week you are asking the muscle to adapt [8] Lamon 2021.
• Eat like you are training: 1.4 to 2.0 g of protein per kilogram a day, in three or four feedings [9] Jäger 2017.
• Use cold water when there is a reason, and not because it is in the recovery routine [7] Berjisian 2026.

Then let it go. The soreness stops being interesting after the first two or three exposures to the same work, because the muscle has already adapted [2] Proske & Morgan 2001.