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The Best Time to Work Out the Abs

by
author image Max Roman Dilthey
Max Roman Dilthey is a science, health and culture writer currently pursuing a master's of sustainability science. Based in Massachusetts, he blogs about cycling at MaxTheCyclist.com.
The Best Time to Work Out the Abs
Your best ab workout might be time-dependent. Photo Credit Jacob Ammentorp Lund/iStock/Getty Images

For most, the best time for that ab workout was "yesterday." However, if you want fast results without pain, there might be a good reason to work out at specific times of the day.

Consider saving your workout for the afternoon, as you can potentially damage your spine if you perform ab exercises first thing in the morning. Additionally, an afternoon workout will be more effective at maintaining your body's healthy circadian rhythm.

Spinal Compression

Your spine naturally lengthens slightly while you're asleep in a reclined position. That's because the flexible intervertebral discs between your vertebrae compress slightly over the course of a day, and uncompress at night when you're lying down.

The compression is significant; you might be a centimeter taller when you wake up in the morning, as compared to when you go to bed.

Read more: 5 Myths About Back Pain Debunked

Disrupting the circadian rhythm with an early morning or late night ab workout might not be a good idea.

Spinal Flexion and Ab Exercises

Ab exercises can compress your spine, which can cause damage to these discs. The repeated flexion of a sit-up or crunch puts pressure on these discs, which can cause swelling or serious injury, like a painful hernia.

You're most vulnerable in the early morning, right after you wake up, since your discs take in water all night long and expand. Added pressure from an early-morning sit-up can cause a lot more damage than the same exercise attempted in the afternoon.

Time your ab workout for a better night's sleep.
Time your ab workout for a better night's sleep. Photo Credit AndreyPopov/iStock/Getty Images

Circadian Rhythm

Humans, like most mammals, have an internal clock called a circadian rhythm. Your circadian rhythm is affected by your sleep schedule, your environment, and even your workout schedule.

Research conducted by Christopher Colwell, professor of psychiatry at the University of California and Los Angeles’s Brain Research Institute, conducted experiments on mice and determined that the timing of a workout routine affected circadian rhythm.

"It is evident that exercise will help to regulate our bodily clocks and circadian rhythms," said Colwell, in an interview with the New York Times. Disrupting the circadian rhythm with an early morning or late night ab workout might not be a good idea.

Save your ab exercises for the afternoon.
Save your ab exercises for the afternoon. Photo Credit Ridofranz/iStock/Getty Images

The Best Time Is Now

All other factors aside, any ab workout is better than no workout. With a strong core, you build a strong foundation for daily activities.

Everyday motions like bending, turning around, sitting, and standing are benefitted by strong ab muscles, as are more intense activities like playing a sport, moving out of your apartment, or going on a long bike ride.

Any ab exercise is better than none at all, so don't let the time of day keep you from pursuing stronger abs.

Read more: Why Exercise in the Morning Is More Exhausting than in Afternoon

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