Common misconceptions about delayed onset muscle soreness

What is delayed onset muscle soreness?

Delayed onset muscle soreness (DOMS) is the sensation of discomfort, stiffness, and tenderness in skeletal muscle that typically develops 24–72 hours after unaccustomed eccentric exercise. It is not a disease but a physiological response to mechanical overload. The formal term is delayed onset muscle soreness; synonyms include muscle fever and post-exercise muscle soreness. DOMS is distinct from acute muscle soreness, which occurs during or immediately after exercise. The condition is characterised by a reduction in muscle function, increased passive tension, and localised pain on palpation or movement. No single molecular identifier (sequence, formula, or molecular weight) defines DOMS because it is a clinical syndrome rather than a single compound.

The pathway most consistently implicated in the initiation and resolution of DOMS involves the innate immune response, particularly the activation of toll-like receptors (TLRs) on macrophages and other immune cells by damage-associated molecular patterns released from injured muscle fibres. This triggers a cascade of inflammatory cytokines, including interleukin-6 (IL-6) and tumour necrosis factor-alpha (TNF-α), which contribute to both the sensation of soreness and the subsequent repair process.

Research Studies

Allicin and oxidative stress in eccentric exercise

Allicin, a sulfur-containing compound derived from garlic, has been investigated for its potential to modulate oxidative stress and DOMS. A registered clinical trial (NCT07812688) is examining the effects of allicin pretreatment on DOMS, muscle function, and oxidative stress following eccentric exercise [2]. The study is designed to assess whether allicin administration before exercise can reduce markers of oxidative damage and attenuate the loss of muscle function associated with DOMS. However, results from this trial are not yet available, and no conclusions can be drawn at this time. The evidence remains preliminary and is limited to the study protocol.

Melatonin and recovery in soccer players

Melatonin, a hormone primarily known for its role in sleep regulation, has been studied for its antioxidant and anti-inflammatory properties in the context of exercise recovery. A qualitative research synthesis of nutritional strategies for performance and recovery in soccer players included melatonin among several multi-target supplements [1]. The review suggests that melatonin may support recovery processes by reducing oxidative stress and modulating inflammatory pathways. However, the synthesis did not focus exclusively on DOMS, and the evidence for melatonin's specific effect on DOMS is indirect. The population studied was soccer players, and the findings may not be generalisable to other types of exercise or populations.

Gut-axis interventions and recovery in soccer players

Prebiotics, probiotics, and synbiotics—collectively referred to as gut-axis interventions—have been proposed to influence recovery outcomes in athletes. The same qualitative review on soccer players summarised evidence that these interventions may modulate systemic inflammation and oxidative stress, potentially affecting recovery processes [1]. However, the review did not specifically measure DOMS as an outcome, and the mechanisms linking gut microbiota to muscle soreness remain speculative. The evidence is limited to the context of soccer players and does not establish a direct causal relationship with DOMS.

Magnesium and muscle function in soccer players

Magnesium is an essential mineral involved in muscle contraction, energy metabolism, and antioxidant defence. The qualitative review on soccer players included magnesium as a potential recovery aid [1]. While magnesium deficiency has been associated with muscle cramps and weakness, the evidence for its effect on DOMS is not robust. The review did not report specific findings on DOMS, and the population was limited to soccer players. Any claims about magnesium reducing DOMS would be extrapolations beyond the available evidence.

Sodium pyruvate and oxidative stress in soccer players

Sodium pyruvate, a salt of pyruvic acid, has been investigated for its antioxidant properties. The soccer-player review mentioned sodium pyruvate as a multi-target supplement that may support recovery by reducing oxidative stress [1]. However, no direct studies on DOMS were included, and the evidence is indirect. The review's qualitative nature means that effect sizes and statistical significance were not synthesised quantitatively. The relevance to DOMS remains unproven.

Purple grape-derived products and recovery in soccer players

Purple grape-derived products, rich in polyphenols such as resveratrol, have been studied for their potential to mitigate exercise-induced oxidative stress and inflammation. The soccer-player review included these products among nutritional strategies for recovery [1]. While polyphenols may influence inflammatory pathways, the review did not specifically address DOMS. The evidence is limited to the context of soccer players and does not provide direct support for a role in DOMS.

Comparison of evidence across interventions

The table below summarises the evidence for each intervention discussed, highlighting the model or population and the relevance to DOMS.

If you are reading this for personal health reasons

The compounds and interventions discussed in this article are sold for laboratory research purposes only. We do not provide dosing information, medical advice, or treatment recommendations. If you are considering any compound for personal use, you must consult a licensed clinician.

Sources

• [1] Mechanism-based nutritional strategies for performance and recovery in soccer players: a qualitative research synthesis
• [2] Effects of Allicin Pretreatment on Anti-oxidation Ability and Delayed Onset Muscle Soreness