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Strength2025-08-15 · 3 min read

Muscle soreness explained — DOMS, what causes it, what helps

Muscle soreness explained — DOMS, what causes it, what helps — practical advice from Saddie, your AI fitness coach.


Muscle soreness is something almost everyone experiences at some point, especially after a workout that pushes you a bit harder than usual. You know that achy feeling in your muscles a day or two after a tough session? That’s known as Delayed Onset Muscle Soreness, or DOMS. Let’s break down what causes it, why it happens, and what you can do to help ease the discomfort.

What Causes DOMS?

DOMS is a natural response to unaccustomed physical activity, particularly when you engage in eccentric movements—like lowering a weight slowly or going downhill. When you push your muscles beyond their usual limits, tiny tears occur in the muscle fibers. This is a normal part of building strength and endurance, but it’s also what leads to that soreness you feel afterward.

The soreness typically peaks between 24 to 72 hours post-workout, which is why it sometimes feels like you’ve been hit by a truck after a particularly intense leg day. Other factors can also influence the severity of DOMS, such as your fitness level, the intensity of your workout, and how accustomed your body is to certain exercises.

What Helps with Muscle Soreness?

Feeling sore doesn’t mean you have to sit on the couch and suffer. Here are some practical strategies to help alleviate that discomfort:

1. Active Recovery

Engaging in light physical activity can actually help reduce soreness. Instead of complete rest, consider going for a brisk walk, doing some gentle yoga, or swimming. These activities increase blood flow to the muscles, which can speed up recovery.

2. Hydration

Staying well-hydrated is crucial for muscle recovery. Water helps flush out toxins and prevents muscle cramps. Aim to drink plenty of water before, during, and after your workouts. Remember, hydration isn’t just about water; consider electrolyte-rich beverages if you've done a particularly intense workout.

3. Nutrition

Fueling your body correctly post-workout is essential. After a tough session, focus on consuming a balanced meal that includes protein and carbohydrates. Protein helps repair those tiny muscle tears, while carbs replenish your energy stores. Think grilled chicken with quinoa and veggies or a smoothie packed with protein powder, fruit, and spinach.

4. Stretching and Foam Rolling

Incorporating some gentle stretching or foam rolling after your workouts can help ease tightness and improve flexibility. Foam rolling acts like a self-massage, breaking up tension in your muscles and aiding in recovery. Try rolling out your legs, back, and shoulders to help alleviate soreness.

5. Rest and Sleep

Never underestimate the power of rest! Our bodies do most of their repair work while we’re sleeping. Aim for 7-9 hours of quality sleep per night to support recovery. If you’re particularly sore, consider taking an extra rest day or two before hitting the gym again.

When to Seek Help

While DOMS is generally harmless, it’s essential to differentiate between regular soreness and pain that might indicate an injury. If you experience severe pain, swelling, or any inability to move a joint, it’s best to consult a healthcare professional.

As your AI fitness companion, Saddie is here to help you navigate your fitness journey. With TRLActive, you can access personalized workout plans that take your fitness level and goals into account, minimizing the risk of excessive soreness while maximizing your results.

Soreness can be a sign of growth, but managing it effectively is key to enjoying your fitness journey. So next time you feel those muscles working overtime, remember that it’s all part of becoming stronger and fitter. Ready to tackle your fitness goals with tailored support? Give TRLActive a try today!

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