In a world of misinformation, Fitness Pudding is here to separate fact from fallacy, and science from fiction.
Ironically, I am pretty darn sore right now. A leg workout from 2 days ago has made taking the stairs and sitting on the toilet a bit more deliberate! Delayed-onset muscle soreness (DOMS) has definitely kicked in – but could I have prevented this soreness if I had stretched after my workout?
To get everyone on the same page, soreness is a general term for the fatigue and discomfort in the muscles that results from exercise. Exercise creates stress on the muscle, especially when the muscle is contracted while it is lengthening (eccentric contraction) – such as slowly lowering dumbbells during a biceps curl.
When the body repairs the muscle, inflammation and soreness can occur. Soreness is usually delayed 48 to 72 hours after the workout, referred to as DOMS. Why is it delayed 48-72 hours? We are not 100% sure, but researchers gain more insight every day.
There are several types of stretching, such as static, dynamic, ballistic, and proprioceptive neuromuscular facilitation (PNF). However, static stretching is most commonly referred to option for soreness reduction.
In static stretching, a muscle is stretched just passed its current resting length, creating tension. This stretch is held for several seconds (e.g. 30 to 45). During this time, the nerves in the muscle do their thing, eventually letting the overactive muscle relax a bit.
Stretching has numerous benefits, but the question we have before us is, "does stretching after a workout prevent muscle soreness?"
In 2007, a Cochrane Review analyzed the most up-to-date research studies that examined the effect of stretching on muscle soreness.2 They concluded,
"The available evidence from randomised trials carried out mainly in laboratory settings consistently suggests that stretching before or after exercise does not prevent muscle soreness in young healthy adults.
Arguably, the findings of this review are clear enough that further research into the effects of stretching on muscle soreness is not necessary."
In 2011, a study updated the review with research that had been conducted after 2007.1 The conclusion was the same: no effect of stretching before or after a workout in preventing muscle soreness.
"The available evidence from randomised trials suggests that stretching before or after exercise does not produce important reductions in postexercise soreness in healthy adults."
A warm muscle is much better prepared for the workout, so some evidence supports that a warm-up can reduce the perception of soreness. The following are example warm-ups:
Note. Those who are new to exercise, or are getting back into a routine, can interpret soreness as physical debility – perceiving oneself as weak and incapable of exercising. These thoughts are dangerous, because they can lead to people quitting their exercise efforts.
In reality, everyone can get sore – those exercising on day 1 or on day 100,000. Also, it is the repair process that provides us with the adaptations that most likely got us working out in the first place (e.g. strength gains, aerobic fitness, and fat loss)!
Start slow, progress yourself over time, and try to choose activities that you enjoy.
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Dr. Faries has a Ph.D. in Behavioral Medicine and a Master of Science in Exercise Physiology, balanced with experience across the fitness industry, medicine, public health, research and extension.
His research explores why and how people initiate and maintain healthy behaviors, with focus on self-regulation success and failure. In other words, he seeks to better understand the common struggle with adopting healthy lifestyles, clarifying the reasons why we don’t “just do it.” Dr. Faries also holds unique expertise in medication adherence, when lifestyle is the medicine.
Dr. Faries also trains the next generation of ‘myth busters’ through medical and public health education, including his popular course, MythBusters: Health Edition.
Dr. Faries has served on the Board of Directors of the American College of Lifestyle Medicine, is founder of Lone Star Lifestyle Medicine for Texas, and is founder of FitnessPudding.com – a non-profit site dedicated to debunking common health and fitness myths.