What is the Metabolic Switch and How is it Flipped?

Written by Stephen Anton PhD on June 26th, 2024

A cartoon graphic of a light switch is shown next to black text that reads, "The Metabolic Switch."

The concept of the metabolic switch is gaining significant attention in the fields of health and fitness. Understanding this natural process can offer insights into effective fat loss and muscle gain strategies. But what exactly is the metabolic switch, and how is it flipped? Let’s explore this fascinating mechanism, incorporating recent scientific insights.

The Fasted State: Shifting from Fat Storage to Fat Burning

The fasted state is a crucial period when your body transitions from fat-storage mode to fat-burning mode. This shift usually occurs after 12 or more hours without eating, making overnight fasting a practical approach for many. The metabolic switch is essentially the body’s way of switching its energy source from glucose to fatty acids and ketones derived from body fat.

What is the Metabolic Switch?

Quite simply, the metabolic switch is the natural process of changing our body’s energy source from glucose (a type of sugar) to fatty acids and ketones (super-charged energy molecules made from our own body fat). This shift typically happens while we sleep and can have profound effects on our body’s ability to burn fat and build muscle.

How is the Metabolic Switch Flipped?

Fasting for 12 or More Hours

One of the primary ways to flip the metabolic switch is through fasting. When we fast for 12 or more hours, our body’s glycogen stores (stored glucose) become depleted. As a result, the body begins to utilize fatty acids and ketones as alternative energy sources. This process helps mobilize stored body fat and uses it for energy, leading to fat loss.

Prolonged Exercise

Engaging in prolonged physical activity can also trigger the metabolic switch. During extended periods of exercise, the body’s glucose reserves are exhausted, prompting a shift to fat-burning for energy. This not only aids in fat loss but also improves overall energy efficiency.

The Impact of Fuel Type on Cells and Mitochondria

The type of fuel that our cells use significantly impacts their function and, by extension, how well we feel. When our metabolism shifts from using glucose to ketones, there are several positive effects on our cells and mitochondria:

1. Increased Energy Production: When cells are fed ketones, they produce approximately 25% more energy than when they are fed glucose. This higher energy efficiency can enhance physical performance and overall vitality.

2. Reduced Metabolic Waste and Inflammation: Cells running on ketones produce less metabolic waste and lower inflammation signals. This can result in decreased inflammation throughout the body, contributing to better health and potentially reducing the risk of chronic diseases.

Scientific Discoveries on the Metabolic Switch

Recent studies have highlighted the profound impact of the metabolic switch on various aspects of health:

1. Metabolic Flexibility: The ability to switch between energy sources (glucose and ketones) is known as metabolic flexibility. Improved metabolic flexibility is associated with better overall metabolic health and a lower risk of metabolic diseases such as type 2 diabetes. A 2020 study published in Cell Metabolism emphasized that metabolic flexibility enhances the body’s ability to adapt to various metabolic demands, reducing the risk of insulin resistance and related conditions.

2. Brain Health: Ketones provide a more efficient and stable energy source for the brain, which can enhance cognitive function and protect against neurodegenerative diseases. Research from The Journal of Clinical Investigation in 2021 found that ketones can support brain health by reducing oxidative stress and inflammation, potentially offering protective benefits against conditions like Alzheimer’s disease.

3. Longevity: Animal studies have suggested that periods of fasting and ketosis may promote longevity by enhancing cellular repair processes and reducing the risk of age-related diseases. A 2019 study in Nature Metabolism indicated that intermittent fasting and ketogenic diets could activate pathways associated with increased lifespan and health span in animal models. While more research is needed in humans, the initial findings are promising.

Benefits of Running on Ketones

Switching your body’s energy source to ketones offers numerous advantages, including:

  • Enhanced Fat Loss: Utilizing body fat for energy naturally leads to fat loss without the need for extreme dieting or excessive exercise.
  • Improved Mitochondrial Function: Ketones provide a cleaner energy source for mitochondria, the powerhouses of our cells, leading to better cellular health and function.
  • Greater Energy Efficiency: Ketones generate more energy per molecule compared to glucose, resulting in improved overall energy levels and physical endurance.

Conclusion

Flipping the metabolic switch is a powerful tool for optimizing health, enhancing energy levels, and promoting natural fat loss. By understanding how this process works and incorporating strategies like intermittent fasting and prolonged exercise, you can harness the benefits of the metabolic switch. Embracing this natural mechanism can lead to a healthier, more vibrant life, with improved energy efficiency and reduced inflammation.

Running your body on this high-quality energy source can make a significant difference in how you feel and perform, both physically and mentally. So, consider incorporating fasting or prolonged exercise into your routine to unlock the full potential of the metabolic switch.

References

  1. Cell Metabolism, 2020. “Metabolic Flexibility and Its Role in Health and Disease.”
  2. The Journal of Clinical Investigation, 2021. “Ketones and Brain Health: Protective Mechanisms Against Neurodegeneration.”
  3. Nature Metabolism, 2019. “Intermittent Fasting and Ketogenic Diets: Potential for Lifespan Extension.”
ABOUT THE AUTHOR

Dr. Anton

I’ve had the privilege of studying the fields of obesity, metabolism, and aging for the past 20 years and felt an increasing desire to share what I’ve learned with as many people as possible the past few years.

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7 Surprising Benefits of Backward Walking: Why You Should Give it a Try

Written by Stephen Anton PhD on Sep 17th, 2023

Walking is one of the simplest and most accessible forms of exercise, but have you ever considered walking backward?

While it might seem odd at first, backward walking, also known as retro-walking or reverse walking, has been gaining popularity as an effective and unique way to stay fit and improve overall health.

In this blog, I will explore the surprising benefits of backward walking and why you should give it a try.

History of Backward Walking

Backward walking, a practice rooted in ancient traditions, has been rediscovered and lauded for its remarkable impact on both the mind and body.

Backward walking is not a new concept; it has roots in ancient practices such as Tai Chi and Qigong. In these traditional Chinese exercises, backward walking is used to improve balance, coordination, and mindfulness.

Throughout history, various cultures have integrated backward walking into their fitness routines for different reasons, making it a time-tested approach to exercise.

7 Benefits of Backward Walking

1. Improved Balance and Coordination

Backward walking engages different muscle groups and challenges your sense of balance and coordination. By walking in reverse, you force your brain to activate distinct neural pathways and strengthen your proprioception – your ability to perceive the position and movement of your body in space. This increased spatial awareness can have positive effects on your overall balance and stability.

In a study involving 33 healthy individuals, backward walking (compared to forward walking) had positive effects on gait and balance ability and can minimize the burden or strain placed on joints and increase lower limb muscle strength.

Overall, studies indicate that backwards walking has a positive influence on walking function improvement among patients after stroke.

2. Enhanced Cardiovascular Function

Backward walking requires more effort than forward walking due to the unnatural motion, resulting in an increased heart rate and improved cardiovascular fitness. It provides an excellent low-impact cardio workout without putting excessive strain on your joints, making it a suitable option for people of all ages and fitness levels.

For example, backwards walking on a treadmill for thirty minutes three times a week for four weeks increased balance, walking speed, and cardiopulmonary fitness in post-stroke patients.

Another study found that the addition of 30 min of backwards walking for stroke rehabilitation resulted in greater improvements in both forward and backward walking speed compared to a standard balance program.6

3. Stronger Muscles

Unlike forward walking, backward walking targets different muscles. The quadriceps, hamstrings, and glutes are more engaged during backwards-walking, which can lead to increased muscle strength and tone in these areas.

For example, in a six-week study conducted on individuals with knee osteoarthritis, the participants in the backwards walking group had greater improvements in muscle strength, and greater reductions in pain intensity and functional disability, compared to the forward walking group.7

Additionally, the core muscles play a significant role in maintaining stability during backward walking, thus contributing to improved abdominal strength.

4. Reduced Joint Impact

Yet another reason to incorporate backwards walking is to combat some of the negative effects of prolonged sitting on our hip flexors and lower back. Almost all of us sit too much these days, and when we sit too long our hip flexors start to become shorter and weaker. This can cause an anterior pelvic tilt, which puts a strain on the muscles in the lower back and leads many people to conclude that they are getting older or that they have bad backs.

The good news is that in most cases, this is not true. And the really good news is that backwards walking can help unravel the negative effects of prolonged sitting on our hip flexors, pelvic floor, and lower back.

If you are someone whose job demands that you sit or even stand for long periods of time, then it is highly recommended that you incorporate backwards walking into your lifestyle.

5. Combat Negative Effects of Prolonged Sitting

Yet another reason to incorporate backwards walking is to combat some of the negative effects of prolonged sitting on our hip flexors and lower back. Almost all of us sit too much these days, and when we sit too long our hip flexors start to become shorter and weaker. This can cause an anterior pelvic tilt, which puts a strain on the muscles in the lower back and leads many people to conclude that they are getting older or that they have bad backs.

The good news is that in most cases, this is not true. And the really good news is that backwards walking can help unravel the negative effects of prolonged sitting on our hip flexors, pelvic floor, and lower back.

If you are someone whose job demands that you sit or even stand for long periods of time, then it is highly recommended that you incorporate backwards walking into your lifestyle.

6. Improve Brain Health

All studies mentioned above point to beneficial effects of engaging in backwards walking to improve physical function. But backwards walking appears to benefit the brain just as much as the body!

Backward walking requires focus and concentration, as it goes against our natural walking habits. The act of walking in reverse requires greater attention, coordination, and concentration, activating the prefrontal and sensorimotor cortex, hippocampus, and cerebellum.  This, in turn, enhances brain plasticity and promotes cognitive abilities.

Furthermore, backwards walking has been shown to increase blood flow to the brain. This increased blood flow delivers oxygen and vital nutrients, optimizing brain function.

Not surprisingly, regular backwards walking has been linked to improved memory, attention, and executive function, making it an excellent exercise for middle-aged and older adults looking to maintain or enhance their cognitive abilities.

7. Versatility of Backward Walking

One of the best aspects of backward walking is its flexibility. It does not require any special tools or equipment, so you can do it virtually anywhere – on a treadmill, a track, in a park, or even at home. It can be incorporated into your daily routine, serving as an additional form of exercise or as a warm-up before other physical activities.

Proper Form and Technique

Mastering the proper form and technique for backwards walking is essential to reap the maximum benefits of this unique exercise.

Whether you are using backwards walking for rehabilitation and physical therapy, improving joint mobility and preventing falls, or enhancing brain function and cognitive abilities, understanding the correct way to perform this exercise is vital.

Prioritize Posture

One of the most significant mistakes to avoid is improper posture. When walking backwards, it is crucial to maintain an upright posture with your spine aligned and shoulders relaxed. Avoid hunching forward or slouching, as this can strain your back and neck muscles. Engaging your core muscles and keeping your head up will help you maintain proper posture and prevent unnecessary strain.

Focus on Small Steps

Another mistake to watch out for is taking overly long strides. While it may seem intuitive to take longer steps for a more efficient walk, this can actually increase the risk of injury, especially for seniors. Instead, focus on taking smaller steps and concentrating on your foot placement. The ball of the foot should strike first followed by the heal. This rolling motion helps to distribute the impact evenly throughout the body and promotes fluid movement.

Let Your Arms Swing

Arm swing also play an important role in backwards walking. Let your arms swing naturally in sync with your legs, but avoid excessive swinging or crossing them in front of your body. This coordinated arm movement helps to maintain balance and rhythm while walking backwards.

How to Start Backward Walking

Pace Yourself

As with any exercise, it is important to start slowly and gradually increase the intensity and duration. Begin with short walks and gradually extend the distance as your body adapts to the new movement pattern. Listen to your body and take breaks if necessary, especially if you experience any discomfort or pain.

Use Proper Footwear

Footwear is also an important consideration. If possible, I recommend walking in zero-drop shoes, as these will allow for the full range of motion and gently stretch your calf and hamstring on each backwards step. If you prefer to walk barefoot, then walking inside and/or on grass is also a good option to consider.

Regular shoes padded shoes can also work for backwards walking, just be sure to make sure the insoles are in good shape. The stretch will not be as good as with the zero drop shoes but the exercise will still provide many benefits.

Best Places for Backward Walking

Choose a safe and suitable environment: Select a smooth and flat surface for your backwards walking sessions to minimize the risk of tripping or stumbling. Avoid uneven terrain, slippery surfaces, or areas with obstacles that could pose a hazard. A track, gymnasium, or a clear path in a park would be ideal locations. It is advisable to have a partner or spotter when starting out to provide additional support and assistance.

Another great option to begin backwards walking is a therapy pool or regular pool. The water is as safe an environment as you can get and at the same time provides some natural resistance with each step.

Backward Walking Products

Outdoor Products

If you live on a street that is not too busy and are willing to invest some dollars, I highly recommend purchasing a push resistance sled and pulling it backwards on the road. The brand called the “Tank” is my favorite as the sled has wheels and you can manually adjust the resistance to your desired level.

The added resistance can really strengthen the joints, tendons, and facia of the body as you move backwards. This will take your backwards walking to a whole other level, and is great for the joints and muscles. For extra benefit, I recommend pulling the sled backwards up a hill if you have one close by.

Of course, this may not be possible for everyone if you do not live near a hill and/or do not have a Tank. Or you may be someone who simply prefers to exercise indoors.

Indoor Products

For these reasons, I highly recommend to consider trying the brand new and patent-pending self-propelled treadmill (Coupon Code: DRANTON) created by Ben Patrick and his ATG team.

This machine can simulate walking uphill and can be used indoors while watching television or talking on the phone. It does not take up much space and thus can be a convenient method to get in backwards walking daily.

Backward Walking Final Thoughts

Backward walking is more than just a novel exercise; it is a mind and body medicine that can transform the way we approach life. By creating new neurons in the brain, improving neuromuscular adaptation, and fostering a heightened state of present moment awareness, this ancient practice opens doors to personal growth and divine inspiration.

At present, there is much focus on getting steps in moving forward. But I believe that the results would be even amplified if the focus was on both forward and backward steps.

So, why not take a step back – literally – and explore the world of backward walking? Embrace this unique form of exercise and experience the surprising positive effects it can have on your physical and mental health.

Remember to start slowly, stay mindful of your surroundings, and enjoy the journey as you move backward towards a healthier you!

ABOUT THE AUTHOR

Dr. Anton

I’ve had the privilege of studying the fields of obesity, metabolism, and aging for the past 20 years and felt an increasing desire to share what I’ve learned with as many people as possible the past few years.

RECENT ARTICLES

Get the Introduction to Dr. Anton’s Upcoming Book: Magic Morning Routine

Take advantage of this 100% free PDF and learn how to create a morning routine that helps you feel and perform at your best.

    ABOUT THE AUTHOR

    Dr. Anton

    I’ve had the privilege of studying the fields of obesity, metabolism, and aging for the past 20 years and felt an increasing desire to share what I’ve learned with as many people as possible the past few years.

    RECENT ARTICLES

    Get the Introduction to Dr. Anton’s Upcoming Book: Magic Morning Routine

    Take advantage of this 100% free PDF and learn how to create a morning routine that helps you feel and perform at your best.

      Get the Introduction to Dr. Anton’s Upcoming Book: Magic Morning Routine

      Take advantage of this 100% free PDF and learn how to create a morning routine that helps you feel and perform at your best.