Science Archives - Page 2 of 7

Heat Exhaustion Vs. Heatstroke

by Adolfo Salgueiro | May 7, 2024 | Article, Reflection, Science

By Coach Adolfo Salgueiro

The Summer can make even the most motivated runner miserable. Currently we don’t need to wait until the Solstice on June 21st to start experiencing the weather getting hotter. And if you live in certain areas of the geography, getting unbearably humid. And, if you want to maintain yourself running, either you adjust to the climate reality or you hibernate with your running shoes until September or October, when things should start cooling off again.

Image by Dall-e (she has three shoes, I guess it is still a work in progress)

It is imperative that runners become intentional about their safety running during these hot months. Being able to identify the symptoms of heat exhaustion and heat stroke will be able to keep you and your running friends safe. So please, pay attention to the content below.

Once again, the usual disclaimer: I am not a doctor, so please do not take medical advice from me. If you have any questions on what you are about to read, please consult a professional.

It is extremely important that you as a runner understand and differentiate the signs and symptoms of heat related illnesses, such as heat exhaustion and heatstroke. They are both serious conditions, but the latter can lead to death. This is no joke. A close friend of mine ended up in the hospital and her family was told to make final preparations. It is a miracle she survived her heat stroke.

According to the Mayo Clinic’s website, there are three heat-related syndromes that may affect your body depending on your exposure to extreme heat conditions. In order of severity, they are: heat cramps, heat exhaustion and heatstroke.

Heat Exhaustion is caused by exposure to elevated temperatures, particularly when combined with high humidity and strenuous physical activity. Without prompt treatment, it can turn into a heatstroke, a life-threatening condition that can be prevented by avoiding entering the heat exhaustion zone in the first place.

Heatstroke is a condition caused by your body overheating, usually as result of prolonged exposure to physical exertion in hot temperatures. It is the most serious form of heat injury. It may occur if your body temperature rises to 104º F (40º C) or higher.

Certain conditions and medicines can enhance your risk of a heat-related illness. Ask your doctor if any of your medical history or current prescriptions can make you more susceptible to these conditions considering your level of physical activity during the warmer months.

I can’t state enough how important it is to know and understand the symptoms of each one of these syndromes. Not only it could help you prevent them, but it can avert a tragedy.

Heat Exhaustion

The evaporation of your sweat regulates your body temperature. However, when you exercise strenuously or otherwise overexert yourself in hot, humid weather, your core temperature (body\’s heat combined with environmental heat) fails to regulate, preventing your body from cooling itself. A normal core temperature is around 98.6º F (37º C). If you don’t deal with this situation immediately, it may develop into a dreaded heatstroke.

The symptoms of Heat Exhaustion are:

Cool, moist skin with goose bumps
Heavy sweating
Faintness
Dizziness
Fatigue
Weak, rapid pulse
Low blood pressure upon standing
Muscle cramps
Nausea
Headache

Should you feel any of these symptoms, stop your activity immediately, move to a cooler place, drink cool water and/or sports drinks and rest. If these symptoms don’t get better within an hour, contact your doctor. Remember you must avoid this escalating into a heatstroke.

Heatstroke

Heatstroke not only requires immediate treatment, but it can quickly injure the brain, heart, kidneys, and muscles. Damage can get worse the longer treatment is delayed and lead to serious complications and, once again, even death. Yes. Seriously: Death.

The symptoms of Heatstroke are:

High body temperature (over 104º F or 40º C),
Altered mental state or behavior (Confusion, agitation, slurred speech, irritability, delirium, seizures),
Alteration in sweating (skin feels hot and dry to the touch),
Nausea and vomiting,
Flushed skin. (Skin may turn red as the body temperature increases),
Rapid breathing (rapid and shallow),
Racing heart rate (Pulse may significantly increase),
Headache (Throbbing).

Prevention

It is imperative to be proactive, both for us and on behalf of our running mates. We must avoid getting into a situation that may trigger heat exhaustion during the scorching summer months. We must err on the side of caution. The Mayo Clinic recommends the following actions:

Wear loose-fitting, lightweight clothing,
Protect against sunburn,
Drink plenty of fluids,
Take extra precautions with certain medications (ask your doctor),
Take it easy during the hottest parts of the day,
Get acclimated to the new weather conditions.

Last year we wrote a blog post on Training Adjustments for the Summer Months, which may be worth revisiting as we prepare for the upcoming weather conditions.

Let’s take our time and learn about heat exhaustion and heatstroke so we can prevent a tragedy.

Have you or one of your running mates ever suffered from a heat-related illness? Please share your thoughts and experiences in the comments box below.

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The Cardinal Sin for the Novice Runner

by Adolfo Salgueiro | Mar 12, 2024 | Article, Coaching, Reflection, Science

By Coach Adolfo Salgueiro

While the mistakes a novice runner makes as he/she breaks into the fascinating and addictive world or running are plentiful, there is only one, as a coach, I consider the Cardinal Sin. The one that will lead you to breakdown, overtraining and injury. This sin is comprised of three elements, which when combined become a dangerous cocktail: Too much, too fast, too soon.

If you don’t allow your tissues to recover before you do it again, they will break down and you will get injured (Image by Copilot for Windows)

And, before you think: ”I am a seasoned runner, so it doesn’t apply to me”, know that this sin also applies to coming back from injury. And you know that unless you hit the genetic lottery, you will eventually injure something.

As a novice you are so excited about the sport and your progress that you feel invincible. You can’t be stopped. It is a wonderful feeling. But there is so much to learn about shoes, science, mechanics, and the latest tech gear that something will go awry.

You might end up with the wrong shoes. You might forget strength or cross training because you’re focused on racking up more miles. You may succumb to bad mechanics. You might start comparing yourself to your friends, your neighbors or even the world elites. Each issue will bring its own set of consequences.

Too much, too fast, too soon is the cardinal sin of the novice runner because it will affect their recovery and thus, their adaptation to training. It will negate the gains. It will get them overtrained, burned out and could lead to overuse injuries. Do I need to say more?

Let’s break down the elements of this “Cardinal Sin”:

Too Much: The progress curve for the novice runner is very steep. The more you run, the easier it becomes. You feel you can run longer, faster, and more frequently. While this is true, your body is not ready for the wear and tear of the constant pounding, so it needs more time to recover and adapt. Recovering so you can do it again is what “being fit” means. Running is a journey that may last a lifetime as long as you manage it properly. It requires patience and wise execution. If you don’t, your running life will be painful and short.

A long and successful career in running is in your hand. Manege it properly (Image by Copilot for Windows)

Too Fast: Running slow so you can run fast is a counter intuitive thought. But the concept has been proven repeatedly. The era of GPS watches and social media oversharing have pushed us to thinking that recovery runs, or God forbid a bad run, are shameful elements in our training. That taking a day off is a sign of weakness. What will our followers think? So, we refuse to slow down. Inevitably, the progress curve will flatten. If it didn’t, we would all eventually break a world record. And that’s not going to happen. So, take it easy on easy days. That’s the exact reason they’re labeled as “easy”.

Too Soon: Ligaments, tendons, cartilage, bones, and muscles must adapt to the pounding of running. This means they need to repair themselves from all the micro-tears caused by the constant percussion. Setting up our bodies to become an effective auto-repair shop needs time and purposeful effort. If you are planning to check an item off your bucket list and move on, you might be able to get away with it. If you plan to run for a lifetime, you don’t need to run all your distances and PRs in the first week, month or season. Give it time. You have it.

My running experience of several decades allows me to insist that you understand that accomplishing your running goals takes time. A lot of time. The old clichés “it is not a sprint; it is a marathon”, or “it is a journey, not a destination” fit in perfectly into this narrative.

Trust the process, be patient, keep it easy on easy days and be constant. While running injuries will affect most runners during our careers, the better prepared we are to confront them, the faster they’ll heal. Especially if we set up a solid base from the start.

Any personal stories you would like to share with the readership? Please do so in the box below.

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The Power of Goal Setting

by Adolfo Salgueiro | Sep 5, 2023 | Article, Reflection, Science

By Coach Adolfo Salgueiro

When it comes to setting running goals, my experience is that there is nothing like having a race on the schedule. One where you have already registered, paid and let everyone in your running circle know about it. It is what keeps me with something to look towards during any period of the year, especially the tough times. It doesn’t matter if the race is in a month or a year down the road. That said, goal setting is way more than spending $35 in your next 5K race or ponying up a few hundred bucks on your next Marathon Major.

In the realm of sports psychology, extensive research has revealed the profound influence of goal setting on athletes. A prominent figure in this field is Dr. Edwin Locke, a psychology professor at the University of Maryland, whose studies have significantly contributed to our understanding of goal-setting theory. In Chapter 4 of \”The Runner\’s Brain\”, a book by Dr. Jeff Brown and Liz Neporent, the authors explore Dr. Locke’s research, shedding light on how setting goals can transform running performance.

This book is the source of this blog post. A good book well worth the money and time.

They identify four principles for goal setting:

Principle 1: Directed Attention – Goals serve as a compass, directing our attention towards specific aspects of our training. Whether it\’s completing a running loop in under an hour or improving pace, breathing, and form, setting goals sharpens our focus. Additionally, breaking down long-term goals into smaller milestones helps measure progress and brings a sense of achievement to our training.

Principle 2: Motivation – Goals provide the driving force that keeps us pushing forward. When we have a clear objective to work towards, we are more likely to stay enthusiastic and engaged throughout the training process. The pursuit of our goals gives us a purpose and ignites the determination needed to overcome challenges.

Principle 3: Celebrating Success – Viewing our efforts as a series of failures can be demoralizing. Setting long-term goals allows us to establish checkpoints along the way, creating multiple opportunities for success. Celebrating these smaller achievements transforms the feeling of missing the mark into a string of mini triumphs, boosting our confidence and motivation.

Principle 4: Continuous Learning – Goal setting propels us into the learning zone. It encourages us to explore new resources, equipment, and strategies to achieve our desired outcomes. As we seek innovative approaches, we develop new skills and expand our knowledge. Embracing new experiences and novel approaches improves our abilities and stimulates our brains, preparing us for future goals.

Now, as in everything in life, we must set limits. While goal setting plays a pivotal role in not just feeling like but becoming a successful runner, it is crucial to establish balance. Research suggests we should avoid an overemphasis on goals or setting unattainable targets, as they can lead to anxiety and a decline in self-assurance. Resilience and the ability to manage disappointment are integral to the goal-setting process.

We should also include backup goals in our training and recognize our achievements at various levels so you may stay motivated and derive satisfaction from our efforts. Remember, goal setting should be complemented by an appreciation of the journey, listening to your body, and finding joy in the process. When it is no longer fun, you will either stop running or burn out.

In conclusion: goal setting is not New Age mumbo-jumbo; it is a science-backed practice that may enhance your running performance if approached correctly. By embracing it, runners can unlock their full potential and achieve their best while maximizing the benefits of their training.

Join the conversation by commenting in the text box below and share your thoughts on goal setting in running! Every step counts towards greatness.

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On Runners’ Mental Toughness

by Adolfo Salgueiro | Jul 25, 2023 | Article, Science

By Coach Adolfo Salgueiro

It wasn\’t too long ago when completing a 20-mile-long run, overheated, dehydrated, destroyed, and borderline injured was considered a badge of honor. The \”no pain, no gain\” mentality taken to the extreme. This outdated machismo has cost many careers and even lives. Thank God that science and collective thought have evolved, leading to an updated concept that is not only more humanitarian but also safer.

I don\’t know how it works in other sports, but runners, please adjust to the new way of thinking.

We\’ve all heard the stories of football players collapsing with heat strokes under the misguided direction of coaches teaching toughness. We\’ve heard of runners ending up in an emergency room rather than at the finish line of a race because they refused to \”show weakness.\” The story of an athlete ending up overtrained or injured because they refused to take a day off is all too common. Surprisingly, most of this could have been avoided by understanding what mental toughness is not.

\"\" — **Toughness is laudable, unless you will get injured because of it. Always live to run another day (Photo Sukh Winder, Pexels)**

In a recent podcast interview, I heard Dr. Justin Ross state that mental toughness could mean different things to different people, making it difficult to define. Dr. Ross is a licensed clinical psychologist who specializes in health, wellness, and human performance psychology. He has spent the bulk of his career in mental health and wellness initiatives for those performing in stressful, high-demanding environments, including athletics.

Ross defined what mental toughness is not: \”Mental toughness is not running when you are injured. It is not running when you are sick. It is not ignoring your body because your mind wants to reach a certain volume for the week, thinking that missing a workout would hinder your success. That\’s not what we understand mental toughness to be.\”

I look back at the training of great runners like Emil Zatopek, who is known to have done 50×400 workouts several times per week. Sure, he won five golds and a silver in the 1948 and 1952 Olympics and set a bunch of world records, but the peak of his career was compressed into those five years. These days, runners like Eliud Kipchoge have a peak lasting 15 years. For us mere recreational runners, if we want to run until we meet our maker, we should regulate our intensity and make sure we see the big picture while we train.

Listening to your body is a mental exercise where you must overcome the optimism that hip pain will magically go away if you keep running. Or that completing this last mile repeat, despite running on empty, is the difference between a personal record and a mediocre race. If you fail to recognize the warning signs, most likely you will end up overtrained or, even worse, injured.

\”Optimism holds a place in the mental toughness conversation,\” says Dr. Ross. \”What doesn\’t hold a place is irrational optimism.\”

Coach Steve Magness has a great quote that I often cite to my trained athletes when they refuse to take a day off: \”It is better to take three days off now than three weeks off three days from now.\”

You can apply mental toughness by being overcautious and playing it smart rather than pushing through when we know it is not advisable. Doing the right thing takes massive amounts of willpower, especially when you really don\’t want to. A running friend once walked to the starting line of an important 10K when he realized the tightness in his calf was going to be an issue. So, he turned around, sat it out, watched all his friends finish, and lived to run another day. A few weeks later, he beat me in a half marathon. Now, this is mental toughness.

\"\" — **Sleeplessness is no badge of honor. It is assuring you won’t be able to recover from your physical activity (Photo: Cottonbro Studio, Pexels)**

Don\’t confuse this updated concept with complacency or laziness. Uncomfortable and/or painful moments are inevitable in running. And normal. We must learn to recognize and overcome them. At the same time, we need to be aware of what is expected and what is our brain turning on the engine check light and signaling that there is a problem to be addressed.

Ross defines mental toughness as: \”a psychological set of resources and skills that you can apply when you are challenged.\” The more challenges and uncomfortable situations you face and overcome, the more mental toughness you\’ll build. Just as in mastering a second language or solving the Rubik\’s Cube. It takes time and dedication to build up, just like a long run.

\”While mental toughness is often equated with perseverance,\” says Coach Jason Fitzgerald, \”it also requires you to be in tune with your body. Pushing through illness or injury is not mental toughness. But challenging yourself in a workout, or not giving up on a tough long run, walk the fine line of being able to dig deep while finding the internal resources to do difficult things. You may not want to lace up because it\’s early, dark, cold, you are tired, or you didn\’t sleep well. Yet, you overcome that obstacle and go anyway. That is developing mental toughness.”

I hope you find these insights helpful as you navigate the concept of mental toughness in running. Remember, it\’s essential to listen to your body, recognize the signs of overtraining or injury, and find the balance between pushing yourself and knowing when to rest and recover. Mental toughness is about applying psychological resources and skills to face challenges, and it grows stronger through perseverance and self-awareness.

Keep running strong, and may your journey be filled with both physical and mental resilience.

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Heat Exhaustion Vs. Heatstroke (Repost)

by Adolfo Salgueiro | Jul 11, 2023 | Article, Reflection, Science

By Coach Adolfo Salgueiro

As we are about to enter officially into the summer season, for all runners training in the Northern Hemisphere it is time to adjust their running to the new weather patterns. I am reposting this article I wrote a couple of years ago because it could save your life. Make sure you read it and understand it.

Once again, the usual disclaimer: I am not a doctor, so please do not take medical advice from me. If you have any questions on what you are about to read, please consult a professional, which, yet once again, it is not the author of this blogpost. Now, let’s proceed.

Running in the summer heat requires a certain level of preparation to avoid heat related issues, including death (Jill Wellington, pexels.com)

As we enter the Summer months in the Northern Hemisphere and the coolness of the spring weather turns into a combination of heat and humidity that can make even the most motivated runner miserable, the time has come to refresh our knowledge on two important concepts. It is extremely important to understand and differentiate the signs and symptoms of heat related illnesses, such as heat exhaustion and heatstroke. They are both serious conditions, but one can lead to death.

Heat Exhaustion is caused by exposure to high temperatures, particularly when combined with high humidity and strenuous physical activity. Without prompt treatment, it can turn into a heatstroke, a life-threatening condition that can be prevented by avoiding entering in the heat exhaustion zone in the first place.

Heatstroke is a condition caused by your body overheating, usually as result of prolonged exposure to physical exertion in high temperatures. This most serious form of heat injury, it can occur if your body temperature rises to 104 F (40 C) or higher.

Certain conditions and medicines can enhance your risk of a heat-related illness. Ask your doctor if any of your medical history or current prescriptions can make you more susceptible to these diseases considering your level of physical activity during the warmer months.

I can’t state enough how important to know and understand the symptoms of each one of these syndromes. Not only it could help you prevent them, but it can avert a tragedy.

Heat Exhaustion

The evaporation of your sweat regulates your body temperature. However, when you exercise strenuously or otherwise overexert yourself in hot, humid weather, your core temperature (body\’s heat combined with environmental heat) fails to regulate, preventing your body to cool itself. A normal core temperature is around 98.6 F (37 C).

If you don’t deal with this situation immediately, it may develop into a dreaded heatstroke.

The symptoms of Heat Exhaustion are:

Cool, moist skin with goose bumps
Heavy sweating
Faintness
Dizziness
Fatigue
Weak, rapid pulse
Low blood pressure upon standing
Muscle cramps
Nausea
Headache

Should you feel these symptoms, stop your activity immediately, move to a cooler place, drink cool water and/or sports drinks and rest. If these symptoms don’t get better within in an hour, contact your doctor. Remember you are avoiding at all costs to have this escalate into a heatstroke.

Heatstroke

The symptoms of Heatstroke are:

High body temperature (over 104 F or 40 C),
Altered mental state or behavior (Confusion, agitation, slurred speech, irritability, delirium, seizures),
Alteration in sweating (skin feels hot and dry to the touch),
Nausea and vomiting,
Flushed skin. (Skin may turn red as the body temperature increases),
Rapid breathing (rapid and shallow),
Racing heart rate (Pulse may significantly increase),
Headache (Throbbing).

Prevention

It is imperative to be proactive, both for ourselves and on behalf of our running mates, in the avoidance of situations that may trigger heat exhaustion during the hot summer months. The Mayo Clinic recommends the following:

Wear loose-fitting, lightweight clothing,
Protect against sunburn,
Drink plenty of fluids,
Take extra precautions with certain medications (ask your doctor),
Take it easy during the hottest parts of the day,
Get acclimated to the new weather conditions.

Last year we wrote a blog post on Training Adjustments for the Summer Months, which may be worth revisiting as we prepare for the upcoming weather conditions.

Let’s take a little bit of time and learn about heat exhaustion and heatstroke so we can prevent a tragedy.

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13 Tips for Summer Running

by Adolfo Salgueiro | Jun 13, 2023 | List, Science

By Coach Adolfo Salgueiro

With Summer around the corner, maybe already here if you are reading this a few days after publication, it\’s essential to adjust your running routines to ensure a safe and effective experience. Running in hot weather requires intentional modifications to prevent dehydration, heat-related injuries, and negative impact on your fitness. These are 12 quick tips for summer running.

1 – Slow Down: Running in the heat is physically demanding, and your body requires more effort to maintain the same pace. Embrace the reality of running at a slower pace to accommodate the increased effort it requires. It\’s about maintaining the level of perceived effort rather than focusing on speed. It doesn’t matter if it screws your Strava averages.

Running safely during the summer is perfectly possible, but it requires planning (Photo: Pexels)

2 – Plan Your Hydration: Proper hydration is crucial during summer runs. Plan your routes around areas with ample fluid sources or strategically seed water along your route in advance. Remember to consume water at scheduled intervals, before you feel thirsty, which may indicate dehydration has already set in.

3 – Overhydration is a Thing: While staying hydrated is important, be cautious about overdoing your water intake. Drinking in excess can lead to hyponatremia, a potentially life-threatening condition caused by dilution of sodium levels in the blood. Stay hydrated throughout the day, not just while you run, and ensure your urine is lightly colored as a sign of healthy hydration.

6 – Dress Appropriately: Opt for light-colored clothing, which reflects more light and deflects heat. Avoid wearing long sleeves, long pants, or outfits designed to induce excessive sweating, as these can hinder your body\’s ability to cool down.

7 – Freeze Your Running Clothes: Sounds weird, but if you place your running shirt and hat in the freezer and you put them on just before you leave home, your body will cool down, and delay the inevitable. Sure, it will get hot anyway, but isn’t it better for it to start at mile 2 or 3 than at the first step?

8 – Stay Connected: Carry your mobile phone during runs. Inform somebody of your whereabouts and expected return time. Consider using apps or services that allow loved ones to track your real-time location for added safety.

Click this image to see the correlation between relative humidity and temperature

9 – Factor in Humidity: If you train in a high-humidity region, be aware that running in saturated air requires more effort compared to drier conditions. Adjust your expectations and accept that maintaining the pace may require additional effort, so you may have to run shorter. Mental preparation and acknowledging this difference may help you stay motivated.

10 – Adjust Your Training Schedule: Be flexible with your schedule, especially if you\’re preparing for a fall marathon. Should the weather conditions be extreme, consider rescheduling long runs or intense sessions to a more suitable time of day. Avoid pushing too hard in unfavorable conditions to prevent extreme exhaustion and/or injuries.

11 – Choose Shaded Routes: Plan your routes intelligently by selecting paths that offer ample shade. This will help shield you from direct sunlight and reduce heat exposure, making your runs more comfortable and safer.

12 – Listen to Your Body: Don\’t be a hero. If you feel dizzy, fatigued, or overheated, don\’t hesitate to stop, cut the run short, seek shade, ask for assistance, or just call it a day. Prioritize your safety and well-being, as taking these precautions will aid in faster recovery and enable you to resume running sooner.

13 – Differentiate Exhaustion from Heat Stroke: It\’s crucial to distinguish between normal exhaustion due to heat and a potentially life-threatening heat stroke. Familiarize yourself with the symptoms of heat stroke to avoid any severe consequences. Refer to the graphic below, borrowed from www.weather.org, for a comprehensive understanding of heat stroke symptoms.

\"\" — Learning this information could save your life

Running during the summer months is possible with the right adjustments and precautions. Many of the world’s greatest marathons, such as Berlin, New York and Chicago, take place in the fall, which means you must train during summer. By planning ahead, making smart choices, and prioritizing safety, you may continue training effectively and ensuring a smooth transition into the upcoming racing season.

Always err on the side of caution and enjoy running while staying safe.

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