Tag Archives: glycogen

Is AM Fasted Cardio for You?

19 Jun

early-morning-workout-tips-300x200[1]I’m a fan of morning workouts.  I think they’re the best, and there’s a lot of scientific research to support the benefits of morning exercise.  AM training sets the tone for your entire day — physiologically, psychologically, and emotionally.  Exercising in the morning just feels good.

And, for our athletes whose goals include strength, speed, and power development, I recommend never training on an empty stomach (as is supported by the scientific literature).

But what if your exercise goals involve weight/fat loss?

There is a debate among exercise science cognoscenti as to whether or not to consume carbohydrates prior to fat-burning exercise.  In other words, should you do morning training on a fasted (empty) stomach or after breakfast?

During cardiovascular exercise, a significant portion of your energy production comes from burning fat. When your diet is higher in protein and fat, your muscle adapts by more effectively utilizing fat and sparing muscle glycogen (the stored form of glucose). Additionally, cardiovascular exercise improves your muscle’s ability to use fat for energy while sparing breakdown of muscle protein. The percentage of carbs used during cardiovascular exercise increases when your diet is high in carbs.

After a night of sleep, fat is available for energy because liver glycogen stores are somewhat depleted by the overnight fast. This means there is less available glucose to burn as fuel and your muscle goes to other sources of fuel — fat or muscle. During cardiovascular exercise, fat is released from stores, resulting in more fat to be available for working muscles. If a carb-rich meal is consumed prior to the workout, glucose becomes the preferred energy source and fat-moving enzymes are shut down by the rise in the hormone insulin, which facilitates conversion of absorbed glucose into stored fat and glycogen.

It is reasonable to infer that eating glucose (carbohydrates) prior to exercise intended to burn fat (i.e., cardiovascular exercise) is counterproductive. Research supports that fat burning is greater in a fasted state vs. a fed state and that fasted cardio improves the contribution of intramuscular fats used in energy production during cardiovascular training.

In other words, research supports that fat burning is greater in the fasted state than in the fed state.

Fasted training improves the muscle’s ability to burn fat more than similar exercise done with prior carb intake. Perhaps more crucial for the low-carb dieter, fasted-state cardio prevents the drop in blood glucose seen in exercise after a carb meal. This avoids the crash that can occur when training after eating sugars or carbs.

Please keep in mind that fasted cardio is just that: It only applies to cardiovascular exercise and not to high-intensity strength and power training.  Athletes who are training to improve performance should always eat prior to a workout, and never train on an empty stomach.

If you’re an athlete who wants to get stronger, faster, and more powerful, make sure you eat appropriately prior to training.

However, if your goal is to burn fat, give fasted morning cardio a try.

Your thoughts?

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Strength Training as an Injury Prevention Strategy

6 Apr

24-pro-foam-roll[1]While it’s impossible to prevent every injury, research shows that strength training can help individuals reduce the incidence and severity of injury.  Here are a few tips that can improve your odds of making your body injury-proof.

Fuel Your Workout

Strength training requires energy.  Everyone’s different but, as a general rule, you should eat a balanced, light meal or snack 30-90 minutes prior to working out.  Aim for a carbohydrate to protein ratio of about 3:1.

Warm-up

At Athletic Performance Training Center, we prefer a dynamic warm-up (no stretching) to prepare for our workouts.  Using light-to-moderate weight, try doing kettlebell swings or a barbell (or dumbbell) complex.  Body-weight exercises — like burpees — will work, too.  You can also do a lighter warm-up set prior to any exercise in your regimen.

Do It Right

Don’t cheat by only pushing or pulling half-way, and don’t get so enamored with the amount of weight you lift that you sacrifice proper technique in the process.  Lift and lower the weight (or your body) through the entire, intended range-of-motion.

Push and Pull

Agonist-antagonist paired sets help to ensure that you’re developing muscular balance and joint stability, in addition to strength, by exercising opposing muscle groups (for example, the bench press and row).

Stretch… After

Post-workout stretching helps to relax and elongate muscles.  Stretching also facilitates oxygenation and nutrient uptake in muscle cells.

Foam Roll (pictured)

If you’ve never tried a foam roll massage, it’s a must.  The foam roll uses your body weight and position to deliver a deep-tissue massage.  They’re available, inexpensively, and most come with an instructional DVD.

Refuel

Post-workout nutrition should be consumed within 30 minutes of your workout.  Your body needs carbs to replenish muscle glycogen stores (think of glycogen as stored energy) and protein (preferably whey) to rebuild muscle.  16-18 ounces of chocolate milk is a great choice.

Rest

It’s the rest days between workouts that help your muscles grow bigger and stronger.  Allow a rest day between training days.  Rest (including adequate sleep) is essential to the recovery/regeneration process.

Get STRONGER, Get FASTER!

Your thoughts?

Is AM Fasted Cardio for You?

18 Mar

early-morning-workout-tips-300x200[1]I’m a fan of morning workouts.  I think they’re the best, and there’s a lot of scientific research to support the benefits of morning exercise.  AM training sets the tone for your entire day — physiologically, psychologically, and emotionally.  Exercising in the morning just feels good.

And, for our athletes whose goals include strength, speed, and power development, I recommend never training on an empty stomach (as is supported by the scientific literature).

But what if your exercise goals involve weight/fat loss?

There is a debate among exercise science cognoscenti as to whether or not to consume carbohydrates prior to fat-burning exercise.  In other words, should you do morning training on a fasted (empty) stomach or after breakfast?

During cardiovascular exercise, a significant portion of your energy production comes from burning fat. When your diet is higher in protein and fat, your muscle adapts by more effectively utilizing fat and sparing muscle glycogen (the stored form of glucose). Additionally, cardiovascular exercise improves your muscle’s ability to use fat for energy while sparing breakdown of muscle protein. The percentage of carbs used during cardiovascular exercise increases when your diet is high in carbs.

After a night of sleep, fat is available for energy because liver glycogen stores are somewhat depleted by the overnight fast. This means there is less available glucose to burn as fuel and your muscle goes to other sources of fuel — fat or muscle. During cardiovascular exercise, fat is released from stores, resulting in more fat to be available for working muscles. If a carb-rich meal is consumed prior to the workout, glucose becomes the preferred energy source and fat-moving enzymes are shut down by the rise in the hormone insulin, which facilitates conversion of absorbed glucose into stored fat and glycogen.

It is reasonable to infer that eating glucose (carbohydrates) prior to exercise intended to burn fat (i.e., cardiovascular exercise) is counterproductive. Research supports that fat burning is greater in a fasted state vs. a fed state and that fasted cardio improves the contribution of intramuscular fats used in energy production during cardiovascular training.

In other words, research supports that fat burning is greater in the fasted state than in the fed state.

Fasted training improves the muscle’s ability to burn fat more than similar exercise done with prior carb intake. Perhaps more crucial for the low-carb dieter, fasted-state cardio prevents the drop in blood glucose seen in exercise after a carb meal. This avoids the crash that can occur when training after eating sugars or carbs.

Please keep in mind that fasted cardio is just that: It only applies to cardiovascular exercise and not to high-intensity strength and power training.  Athletes who are training to improve performance should always eat prior to a workout, and never train on an empty stomach.

If you’re an athlete who wants to get stronger, faster, and more powerful, make sure you eat appropriately prior to training.

However, if your goal is to burn fat, give fasted morning cardio a try.

Get STRONGER, Get FASTER!

Your thoughts?

Strength Training as an Injury Prevention Strategy

13 Mar

24-pro-foam-roll[1]While it’s impossible to prevent every injury, research shows that strength training can help individuals reduce the incidence and severity of injury.  Here are a few tips that can improve your odds of making your body injury-proof.

Fuel Your Workout

Strength training requires energy.  Everyone’s different but, as a general rule, you should eat a balanced, light meal or snack 30-90 minutes prior to working out.  Aim for a carbohydrate to protein ratio of about 3:1.

Warm-up

At Athletic Performance Training Center, we prefer a dynamic warm-up (no stretching) to prepare for our workouts.  Using light-to-moderate weight, try doing kettlebell swings or a barbell (or dumbbell) complex.  Body-weight exercises — like burpees — will work, too.  You can also do a lighter warm-up set prior to any exercise in your regimen.

Do It Right

Don’t cheat by only pushing or pulling half-way, and don’t get so enamored with the amount of weight you lift that you sacrifice proper technique in the process.  Lift and lower the weight (or your body) through the entire, intended range-of-motion.

Push and Pull

Agonist-antagonist paired sets help to ensure that you’re developing muscular balance and stability, in addition to strength, by exercising opposing muscle groups (for example, the bench press and row).

Stretch… After

Post-workout stretching helps to relax and elongate muscles.  Stretching also facilitates oxygenation and nutrient uptake in muscle cells.

Foam Roll (pictured)

If you’ve never tried a foam roll massage, it’s a must.  The foam roll uses your body weight and position to deliver a deep-tissue massage.  They’re available, inexpensively, and most come with an instructional DVD.

Refuel

Post-workout nutrition should be consumed within 30 minutes of your workout.  Your body needs carbs to replenish muscle glycogen stores (think of glycogen as stored energy) and protein (preferably whey) to rebuild muscle.  16-18 ounces of chocolate milk is a great choice.

Rest

It’s the rest days between workouts that help your muscles grow bigger and stronger.  Allow a rest day between training days.  Rest (including adequate sleep) is essential to the recovery/regeneration process.

Get STRONGER, Get FASTER!

Your thoughts?

The Importance of Post-Workout Carbohydrates

14 Dec

spaghetti[1]Most athletes know that post-workout protein is essential to the muscle recovery and repair process. As a strength and conditioning professional who works with hundreds of athletes, I can tell you that the importance of post-workout carbohydrate consumption is not necessarily as widely known or understood.

Post-workout carbs are also essential to your muscles’ recovery process. Ideally, you want to aim for 30-90 grams of carbs — depending on the intensity and duration of your workout — within about 30 minutes of training. This is when your muscles are most “receptive” to glycogen (see next paragraph). Within a few hours, your muscles are no longer able to recapture glycogen. Consuming carbohydrates after a workout not only “feeds” your muscles; it also prepares them for the next day’s workout, practice, or game.

Here’s how the process works: You already know that your body breaks carbs down into glucose, your primary energy source. Glycogen is the form of glucose that’s stored in your muscle tissue (some glucose is stored as fat). When you workout, you deplete muscle glycogen stores but you also effectively increase your muscle demand for glucose, meaning you need more (pre-workout) and have the ability to store more (post-workout). That’s why replenishing your muscles’ glycogen stores — via carbohydrate consumption — is an important part of your recovery process.

For best results, your post-workout carbs should be combined with protein. Research indicates the optimal carb-protein ratio to be 3:1 or 4:1, or approximately 20 to 25g protein per 80g carbs. Studies also show that carb-protein consumption, after a workout, increased glycogen reloading by 38 percent over carbs-only (Journal of Applied Physiology). Lowfat chocolate milk has this “magic” formula: a 3:1 carb-protein ratio and quality whey protein.

If you want to get your carbs from whole foods, what should you eat? Well, quality is important but any carb is better than no carb at all, given the importance of carbs to the post-workout recovery process. Fruits, including dried fruits, are good choices (think apples, oranges, bananas, raisins, and craisins). Whole grains — including bread, bagels, cereals, pasta, and rice — are nutritious and beneficial.

Get STRONGER, Get FASTER!

Your thoughts?

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