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Sunday 22 August 2021

Here’s What Taking a Cold Shower Does to Your Body, According to Expert

 You already know the purported benefits of ice baths. Studies have shown that they’re one of the most effective ways to reduce delayed onset muscle soreness, perceived fatigue, muscle damage, and inflammation after physical exercise compared to active recovery, massage, and compression garments, according to a 2018 meta-analysis of 99 studies looked at the effectiveness of recovery methods.

 

But let’s be real: It’s a total chore to fill your tub up with bags of ice—even if there’s nowhere else you’d rather sit after an especially sweaty, humid summer workout. What’s the next best thing? An ice cold shower seems obvious, but are there any benefits of cold showers?

 

While it’s not quite the same as immersing yourself in icy water (and you won’t get the same intended effect), even a few minutes under that cold water can affect how you perform and recover. Here’s the deal.

 

What a Cold Shower Does to Your Body

First thing’s first: A cold shower pre-workout could do wonders for you, especially when you’re, for example, running in the heat. “You feel better, but your body temperature would also be a little bit lower to start the run,” which affects how high it might rise during the run, says Doug Casa, Ph.D., Chief Executive Officer of The Korey Stringer Institute, which provides research on exertional heat stroke prevention. “There’s no question that your performance could be better, and that you’ll be safer.”

 

But you’re more likely to crave that cold water post-workout, when it can provide relief for soreness and inflammation and give almost every system in your body a boost, a recent review of the science in The North American Journal of Medical Sciences found. “Jumping in a cold shower immediately after exercise is a great idea, because the faster you get your body temperature down after activity, the better you’re going to recover,” Casa says.

 

That’s because when you exercise in the heat, your blood is being shared by the skin, the muscles, and the heart: “the heart to maintain your cardiac output, your muscles so you can do the darn exercise, and your skin so that you can cool yourself,” explains Casa. “When you take out one of those factors by using water to cool your skin, your body can send blood back to important areas like your stomach and your intestines, so you can handle hydration and nutrients better. Then your fatigue will be less later on in the day or the next day.”

 

That exposure to cold water also causes vasoconstriction, which is when your blood vessels become more narrow and, along with the heart, need to work harder to continue moving blood flow.This increased demand strengthens the heart and blood vessels, translating to improved circulation longer term.Improved circulation benefits overall health, performance, and recovery by helping to deliver key nutrients and energy to muscles and organs while simultaneously removing exercise-related metabolic waste products such as lactic acid more efficiently.

 

What a Cold Shower Does to Your Brain

What doesn’t kill you makes you stronger, right? Well, there’s actually a scientific name for that: hormesis, which is basically a biological phenomenon whereby a positive effect results from exposure to low doses of something that is otherwise negative at higher doses. “Low-dose controlled stressors such as oxygen restriction, intermittent fasting, and cold water exposure are all utilized to stimulate the hormetic response,” says Drogoszewski. “Hormones and neurotransmitters kick into high gear during these exposures, leading to an increase in physiological and mental resilience.”

 

Taking a cold shower for up to five minutes, two to three times per week, has also been shown to help relieve symptoms of depression, according to research published in the journal Medical Hypotheses. “That cold water exposure helps to decrease cortisol levels and increase the levels of the feel-good neurotransmitter serotonin,” says Drogoszewski. Even better: The adrenaline rush you get from immersing yourself in cold water creates a rush of norepinephrine, he adds, which helps to increase energy, focus, and performance outcomes.

 

Any time you can force yourself to withstand a physically uncomfortable situation (one that doesn’t threaten your safety, obviously), it forces you to toughen up. “If you can suck it up and stand in a cold shower, it makes you think, what other uncomfortable situations can you push through?” says Drogoszewski. “Those last reps in your strength workout? The final kick of a marathon?” Developing your mental strength is just as important as building physical strength, and this could be one of the easiest ways to do it.

 

So How Cold Does It Really Need to Be?

Everyone’s definition of what’s cold is different—especially when you’re all fired up after a hard workout. “If your body temperature is 103° or 105° after a summer run, standing in 34° water is going to be a horrible experience,” says Casa. “Sixty degrees, though, is still really cold—but might feel refreshing.” So there’s no right answer as to how cold exactly your shower should be. “Generally, the colder the water the better, and the longer you can stand it the better,” he adds.

 

The best practice is to start slow and build up to longer exposures, says Drogoszewski. “The goal is to engage in the practice long-term, so if it’s absolutely miserable, the likelihood of sticking with it is pretty slim. I now do five to 10 minutes straight every morning, but I started with 30 seconds of cold at the end of my shower then built up from there.”

 

What you don’t want to do is turn the faucet so far to the cold side that you end up shivering—and using more energy—under the spray. “I would not want to induce a shivering response in someone after they just exercised in the heat,” says Casa. “You have enough stress your body’s dealing with already.” And in the dog days of summer? A nice, cold shower might be the actual cooldown your workout needs.

Saturday 24 April 2021

Slow and Steady Wins Nothing

One of the most deep-seated and fiercely argued tenets of cardio work is that in order to burn fat, you should always be working in the “fat-burning zone.” If you’ve ever been on a cardio machine at a health club, you’ve seen those nifty little guides that relay the supposed effects of different heart rate zones. With words such as “Maximum Fat Burn Zone” plastered all over lower heart rates, it’s no wonder that we’ve all been seduced into thinking that the only way to burn that stubborn fat off is to keep our heart rates low and steady. This is why many of us insist on setting the treadmill at a brisk walking pace and staying on it for as long as possible.

The concept of the “fat-burning zone” is based on the premise that your body burns a greater percentage of calories from fat when it’s working at lower heart rates. If we consider this concept alone, you might choose the low-intensity workout. To complete a 30-minute workout at a low intensity, you can get 50 percent of the energy she needs from fat. If you were instead to do a high-intensity workout for 30 minutes, just 40 percent of the calories burned would come from fat.

Ok, low intensity burns more fat, right ?  WRONG !!!  Let’s compare the same 30 minute cardio session.  Low intensity burns 100 calories. 50% come from fat or 50 calories of fat. High intensity burns 150 calories, 40% come from fat or 60 calories of fat. That’s 20% more calories from fat. Plus high intensity gives you EPOC or Excess Post-Exercise Oxygen Consumption otherwise known as the “afterburn”. This will allow you to burn calories for up to an hour after your session. It’s a win win situation. !

Still not convinced? Maybe this fact will get your attention: Consistently working out at a low intensity can actually train your body to store fat. You read that correctly. If you consistently perform low-intensity exercise (that is, at a low heart rate), your body will adapt by beginning to store fat so that it can complete the next bout of exer­cise more effectively. This scenario is called “metabolic efficiency,” and it’s the ultimate catch-22 of exercising.

 

Friday 9 April 2021

Skip the Deadlifts and the Olympic Lifts

Recently, Vern Gambetta, one of the most distinguished Athletic Performance coaches of the modern era, posted a great opinion piece on Facebook this week that argued about the potential uselessness and dangers of using Olympic lifting as a means of developing athletic prowess in the athlete. And from an injury perspective I could not have agreed more.

Read on for more...                                                                                                                                                

The risks of Olympic lifting.

To set the record straight, both Vern Gambetta and I are not against the idea of Olympic lifting as a means of strength and power development in the non-Olympic lifting athlete. I just believe that sometimes Strength and Conditioning Coaches overuse the Clean and Jerk (or Power Clean) and the Snatch as a basis for the strength and conditioning programs without understanding the inherent risks involved in such technical movements.

     All training modalities come with some inherent risk. Speed and agility work can pull hamstrings, high intensity mixed interval training can lead to overuse tendinopathies, bench/dip/shoulder press can all lead to a host of shoulder problems etc... However, often what a good Strength and Conditioning coach can do is ascertain which movements are inherently "self-limiting". What this means is that if the movement/lift goes wrong, they still have a chance of pulling out without hurting themselves. A great example is barbell bench press versus dumbbell bench press. When using a barbell if things go wrong in the lift the athlete does not have a lot of wriggle room to avoid either dropping the weight on themselves or wrenching their shoulder joint. With dumbbell bench press, if things go wrong the athlete can simply drop the dumbbells off to the side.

     This holds true for Olympic lifting also, particularly the Snatch as it is not "self-limiting". If things go wrong in a Snatch, often the shoulder, neck and back will cop a hammering. Just have a look at any site that promotes "gym fails" on Facebook and you will understand what I am on about. Not a lot of wriggle room if a Snatch goes wrong.

      In my experience in rugby, I have seen a host of "Olympic lift" injuries in my time dealing with rugby and American football players. These include injuries such as ruptured Achilles tendon, torn meniscus (too deep on the catch with the clean), a ton of lumbar spine disc injuries, traction injuries to the brachial  lexus, wrenched cervical spines and a bunch of wrist impingements. Missing 2 weeks to 6 months of rugby due to a lift gone wrong can be a very frustrating and annoying issue for the coaching staff.

 

Risk vs Reward

     Therefore, this brings us to the crux of this issue - risk vs reward. What is the inherent benefit in including such technically proficient lifts into a training program if the risk of injury is potentially higher than with another "self-limiting" lift? Is a lumbar disc herniation worth the potential benefit of doing a heavy power clean? Could they get the same benefit of doing a jump squat movement instead? The Strength and Conditioning coach would need a solid basis of argument to include such movements into a program of a non-Olympic lifting athlete. I am sure countless physiotherapists and doctors who read this newsletter may philosophically agree with me on this point. As a Strength and Conditioning coach I have always used the Risk vs Reward formula to determine whether a specific lift should be used in a programme. When you use the Risk vs reward formula you quickly realise that in some cases it just not worth it. 

  

Thursday 8 April 2021

BIG DONT'S


Don't do anything in your bare feet. Will cause stress fractures or "greentree fractures" to your foot.

Don't do behind the neck pulldowns, behind the neck shoulder presses. Nothing with your hand in the high five position.

Don't do situps, crunches or trunk twists for your core. This will damage the disk in your spine. Not if, but when.

Don't cut your carbs to lose weight. It doesn’t work.

Don't do forced reps with a spotter. This can actually hinder your strength gains.

Don't use straps when lifting. It will weaken your grip.

Don't wear a belt when lifting, unless you are doing a one rep maximum. It can lead to instability in your spine and eventually back problems.

Don't do your cardiovascular work without a heart rate monitor. .  

Don't use the old "220- your age  x your % formula". It just might kill you

 

The biggest Don’t of all…… Don’t ever, ever give up !

Wednesday 7 April 2021

Skip the Deadlifts and Olympic Lifts.

 

Recently ,Vern Gambetta, one of the most distinguished Athletic Performance coaches of the modern era, posted a great opinion piece on Facebook this week that argued about the potential uselessness and dangers of using Olympic lifting as a means of developing athletic prowess in the athlete. And from an injury perspective I could not have agreed more.

Read on for more...

The risks of Olympic lifting.

To set the record straight, both Vern Gambetta and I are not against the idea of Olympic lifting as a means of strength and power development in the non-Olympic lifting athlete. I just believe that sometimes Strength and Conditioning Coaches overuse the Clean and Jerk (or Power Clean) and the Snatch as a basis for the strength and conditioning programs without understanding the inherent risks involved in such technical movements.

     All training modalities come with some inherent risk. Speed and agility work can pull hamstrings, high intensity mixed interval training can lead to overuse tendinopathies, bench/dip/shoulder press can all lead to a host of shoulder problems etc... However, often what a good Strength and Conditioning coach can do is ascertain which movements are inherently "self-limiting". What this means is that if the movement/lift goes wrong, they still have a chance of pulling out without hurting themselves. A great example is barbell bench press versus dumbbell bench press. When using a barbell if things go wrong in the lift the athlete does not have a lot of wriggle room to avoid either dropping the weight on themselves or wrenching their shoulder joint. With dumbbell bench press, if things go wrong the athlete can simply drop the dumbbells off to the side.

     This holds true for Olympic lifting also, particularly the Snatch as it is not "self-limiting". If things go wrong in a Snatch, often the shoulder, neck and back will cop a hammering. Just have a look at any site that promotes "gym fails" on Facebook and you will understand what  I am on about. Not a lot of wriggle room if a Snatch goes wrong.

      In my experience in rugby, I have seen a host of "Olympic lift" injuries in my time dealing with rugby and American football players. These include injuries such as ruptured Achilles tendon, torn meniscus (too deep on the catch with the clean), a ton of lumbar spine disc injuries, traction injuries to the brachial  lexus, wrenched cervical spines and a bunch of wrist impingements. Missing 2 weeks to 6 months of rugby due to a lift gone wrong can be a very frustrating and annoying issue for the coaching staff.

 

Risk vs Reward

     Therefore, this brings us to the crux of this issue - risk vs reward. What is the inherent benefit in including such technically proficient lifts into a training program if the risk of injury is potentially higher than with another "self-limiting" lift? Is a lumbar disc herniation worth the potential benefit of doing a heavy power clean? Could they get the same benefit of doing a jump squat movement instead? The Strength and Conditioning coach would need a solid basis of argument to include such movements into a program of a non-Olympic lifting athlete. I am sure countless physiotherapists and doctors who read this newsletter may philosophically agree with me on this point. As a Strength and Conditioning coach I have always used the Risk vs Reward formula to determine whether a specific lift should be used in a programme.When you use the Risk vs Reward formula you quickly realise that in some case's it just not worth it. 

 


Sunday 4 April 2021

Nutrition is not a belief system.

                            Nutrition is not a belief system.

                            Why wishful thinking won't get you results, but science might.

                                                                      Part  1 

 

Nutrition is often seen as a belief system. In other words, the answer to “What should I eat?” is often based on faith, magical thinking, emotional attachments, and/or what feels “truthy”, rather than on real evidence or the scientific method. Until we fix this, nutrition will get more confusing, not less.

 Imagine the Google search by someone who wants to eat better.      

They might want to lose weight. Or build muscle. Or stay a little healthier so they can play with their grandkids longer.

So they might look for terms like:

Healthy eating.

Healthy diet.

Good nutrition.

The result? Well…

“Healthy eating” gave me 63.6 million options.

“Healthy diet” gave me 188 million options.

And “Good nutrition” gave me a whopping 213 million options.

When I check out some of these search engine results, I notice something.

Each of these websites has a story to tell: A story about which diet, supplement, food, or nutrition practice someone believes is best.

Many of these stories completely contradict each other.

But they have one thing in common: The authors treat nutrition like it’s a set of beliefs, there for their own picking and choosing.

Unfortunately, “nutrition” is often seen as a belief system.

But beliefs don’t necessarily have anything to do with facts.

When we believe something, we choose to accept that it’s true, which may or may not have anything to do with factual certainty.

This approach of “believing” is frequently applied to nutrition.

As in:                                                                                              

“I believe that sugar is poison.”

“I don’t believe that humans were meant to eat grains.”

“I believe in only eating foods that are natural and organic.”

In other words, the answer to “What should I eat?” is often based on faith, wishful thinking, emotional attachments, and/or what feels “truthy”, rather than on science.

Yet nutrition is not a belief system.

Nutrition is a science.

My job is to use nutrition (plus strength and conditioning) to get my clients the results they want.

When your meal strategy can be the difference between success or failure, there is no room for “hoping” the nutrition will work.

I can’t go on faith alone. My clients’ success literally depend on me doing my job well. Which is why the scientific method, not beliefs, govern my practice.

That’s why I need to ensure that my nutrition recommendations are based on measurable, accurate reality. On science. On the best evidence that we have right now.

 Part 2 to follow !

 

 

 

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