Showing posts with label power. Show all posts
Showing posts with label power. Show all posts

Friday, 27 January 2017

💪🏼 Carrots The Super Food 💪🏼

I am sure that I was not alone, growing up I was told that eating my carrots would make me see in the dark. So as a child I didn't need much encouragement to eat them all, with ideas conjuring in my mind of having night vision abilities. While I don't know if this made my night vision any better, I am glad that I ate them now understanding the real benefits of these crunchy orange super veg.

Forget about vitamin A pills. Carrots provide vitamin A and a host of other impressive health benefits including beautiful skin, cancer prevention and anti aging. Learn how to reap the benefits from this crunchy power food.

Nutrition - Replacing Supplements 

"The brighter the hue, the better the carrot"

1 cup of chopped, raw carrots contains:

  • 52 calories
  • 1 g protein
  • 12 g carbs
  • 3.6 g fiber
  • 0 g fat
Carrots pack a punch when it comes to nutrition rich in vitamins and minerals. Carrots contain 19 of the 21 essential amino acids, so munch on one pre and post workout to replace the expensive BCAA supplements! Naturally occurring Omega 3 & 6, as well as having good levels of Calcium and Magnesium which will replace your pre sleep recovery needs. 

High levels of both Beta-Carotene & Alpha-Carotene. Both alpha carotene and beta carotene are important for the prevention of vitamin A deficiency, which could lead to blindness. These carotenes serve as powerful antioxidants. They also appear to boost the immune system, and help the body fight against foreign agents such as bacteria and viruses. Thats without mentioning the other vitamins D through K. 



How To Eat Carrots


The nutrients in carrots are tightly encased in protein sacs that have to be broken by heat (cooking) or mechanical action (grinding, juicing, proper chewing).
Cooking the carrots in fat or oils, pureeing or juicing them increases the availability of carotenoids by 600 percent.

Fats also help the absorption of carotenoids into the blood by 1,000 percent, as carotenoids are fat soluble, so pour a little olive oil on top!
Not already sold? 11 more Reasons why you should be eating carrots

1.  Improves vision
There’s some truth in the old wisdom that carrots are good for your eyes. Carrots are rich in beta-carotene, which is converted into vitamin A in the liver. Vitamin A is transformed in the retina, to rhodopsin, a purple pigment necessary for night vision.
Beta-carotene has also been shown to protect against macular degeneration and senile cataracts. A study found that people who eat large amounts of beta-carotene had a 40 percent lower risk of macular degeneration than those who consumed little.
2.  Helps prevent cancer
Studies have shown carrots reduce the risk of lung cancer, breast cancer and colon cancer.
Falcarinol is a natural pesticide produced by the carrot that protects its roots from fungal diseases. Carrots are one of the only common sources of this compound. A study showed 1/3 lower cancer risk by carrot-eating rats.



3.  Slows down ageing 
The high level of beta-carotene in carrots acts as an antioxidant to cell damage done to the body through regular metabolism. It help slows down the ageing of cells.
4.  Promotes healthier skin 
Vitamin A and antioxidants protect the skin from sun damage. Deficiencies of vitamin A cause dryness to the skin, hair and nails. Vitamin A prevents premature wrinkling, acne, dry skin, pigmentation, blemishes and uneven skin tone.
5.  Helps prevent infection 
Carrots are known by herbalists to prevent infection. They can be used on cuts—shredded raw or boiled and mashed.
6.  Promotes healthier skin (from the outside) 
Carrots are used as an inexpensive and very convenient facial mask. Just mix grated carrot with a bit of honey.
7.  Prevents heart disease
Studies show that diets high in carotenoids are associated with a lower risk of heart disease. Carrots have not only beta-carotene but also alpha-carotene and lutein.
The regular consumption of carrots also reduces cholesterol levels because the soluble fibers in carrots bind with bile acids.
8.  Cleanses the body 
Vitamin A assists the liver in flushing out the toxins from the body. It reduces the bile and fat in the liver. The fiber present in carrots helps clean out the colon and hasten waste movement.
9.  Protects teeth and gums
It’s all in the crunch! Carrots clean your teeth and mouth. They scrape off plaque and food particles just like toothbrushes or toothpaste. Carrots stimulate gums and trigger a lot of saliva, which, being alkaline, balances out the acid-forming, cavity-forming bacteria. The minerals in carrots prevent tooth damage.


10.  Prevents stroke
From all the above benefits it’s no surprise that in a Harvard University study, people who ate five or more carrots a week were less likely to suffer a stroke than those who ate only one carrot a month or less.

11. Sleep

In the Pennsylvania University study they found that consumption of the nutrient alpha-carotene was most closely associated with better sleep. Diets low in this nutrient were linked with trouble falling asleep. Gram for gram, carrots are the most potent sources of alpha carotene, behind canned pumpkin.

Canned carrots, carrot juice, raw baby carrots, frozen carrots and raw regular carrots are all excellent sources of this powerful carotenoid. Carrots also pack several other sleep promoting nutrients like potassium and vitamin B6, as well as vitamin A and biotin.


Wednesday, 25 January 2017

Liquid Gold: 7 Health Benefits Of Honey That Could Heal Your Whole Body

Honey contains a treasure chest of hidden nutritional and medicinal value for centuries. The sweet golden liquid from the beehive is a popular kitchen staple loaded with antibacterial and antifungal properties that has been used since the early days of Egyptian tombs.


Honey’s scientific super powers contribute to its vastly touted health benefits for the whole body. The healthy natural sweetener offers many nutritional benefits depending on its variety. Raw honey is the unpasteurised version of commonly used honey and only differs in its filtration, which helps extend its shelf life. A tablespoon of raw honey contains 64 calories, is fat-free, cholesterol-free, and sodium-free, says the National Honey Board. Its composition is roughly 80 percent carbohydrates, 18 percent water, and two percent vitamins, minerals, and amino acids.
Typically, honey is sweet but can be cruel to infants. Spores of Clostridium botulinum bacteria — found in dirt and dust, which can contaminate honey — may lead to infant botulism and produce a toxin inside the body that can cause muscle weakness and breathing problems. The Mayo Clinic recommends waiting until after 12 months of age to give infants honey; consumption is safe for older adults and kids, since they have a mature digestive system that can handle the spores.
Consume honey responsibly and reap the numerous health benefits of this liquid gold.

1. ALLEVIATES ALLERGIES

Honey’s anti-inflammatory effects and ability to soothe coughs has led to the belief it can also reduce seasonal allergy symptoms. Although there are no clinical studies proving its efficacy, Dr. Matthew Brennecke, a board certified naturopathic doctor practicing at the Rocky Mountain Wellness Centre in Fort Collins, Colo., told Medical Daily in an email, "A common theory is that honey acts like a natural vaccine." It contains small amounts of pollen, which if the body is exposed to small amounts of it, it can trigger an immune response that produces antibodies to the pollen. "After repeated exposure, you should build up these antibodies and the body should become accustomed to their presence so that less histamine is released, resulting in a lesser allergic response."

2. ALL-NATURAL ENERGY DRINK

Honey is an excellent source of all-natural energy at just 17 grams of carbohydrates per tablespoon. This natural unprocessed sugar — fructose and glucose — directly enter the bloodstream and can deliver a quick boost of energy. The rise in blood sugar acts as a short-term energy source for your workout, especially in longer endurance exercises.
Brennecke said there is a con to adding honey to your workout. “If your goal in exercising is to increase muscle mass, working out on an empty stomach first thing in the morning is the way to go.  When your body is in starvation mode (upon waking in morning), and you start exercising, you release insulin-like growthfactor-1 (IGF-1), which will help you build bulk,” he said. Brennecke does warn this only works when blood sugars are low.

3. BOOSTS MEMORY

The sweet nectar is loaded in antioxidants that may help prevent cellular damage and loss within the brain. A 2011 study published in Menopause found a daily spoonful of Malaysian honey may boost postmenopausal women’s memory, which can provide an alternative therapy for the hormone-related intellectual decline. After four months of taking 20 grams of honey a day, the women were more likely to have better short-term memory than their counterparts who took hormone pills.
Honey’s ability to help the body absorb calcium, according to Brennecke, helps aid brain health. The brain needs calcium in order to process thought and make decisions. “As our populations continue to get older and older, the likelihood of dementia setting in because of poor intake of vitamins and minerals continues to get higher and higher,” he said.

4. COUGH SUPPRESSANT
Honey can be the all-natural cure when it comes to pesky colds. A persistent cough that won’t go away can easily be remedied with two teaspoons of honey, according to a 2012 study published in the journal Pediatrics. Children between the ages of 1 and 5 with nighttime cough due to colds coughed less frequently when they received two teaspoons of honey 30 minutes before bed.
The golden liquid’s thick consistency helps coat the throat while the sweet taste is believed to trigger nerve endings that protect the throat from incessant coughing. Honey is believed to be as effective as the common cough suppressant ingredient dextromethorphan. It can be used in treating upper respiratory tract infections.

5. SLEEP AID

Honey can be a health aid for sleepless nights. Similar to sugar, honey can cause a rise in insulin and release serotonin — a neurotransmitter that improves mood and happiness. “The body converts serotonin into melatonin, a chemical compound that regulates the length and the quality of sleep,” Rene Ficek, registered dietitian and lead dietitian nutritionist at Seattle Sutton's Healthy Eating in Chicago, Ill., told Medical Daily in an email.
Moreover, honey also contains several amino acids, including tryptophan that is commonly associated with turkey. Honey’s steady rise in insulin, according to Brennecke, causes the tryptophan in honey to enter the brain, where it’s then converted into serotonin and then into melatonin, which is a sleep aid. This hormone is responsible for regulating sleep and wake cycles.

6. TREATS DANDRUFF

Honey can bring temporary relief to the scalp by targeting dandruff. A 2001 study published in the European Journal of Medical Research found applying honey diluted with 10 percent warm water to problem areas and leaving it on for three hours before rinsing led to itch relief and no scaling within a week. Skin lesions healed within two weeks and patients even showed an improvement in hair loss. The patients did not relapse even after six months of use.
Thanks to honey's antibacterial and antifungal properties, it can also treat seborrheic dermatitis and dandruff, which are often caused by an overgrowth of fungus. Moreover, “honey also has anti-inflammatory properties, which address the redness and itching on the scalp,” Brennecke said.

7. TREATS WOUNDS AND BURNS

Honey is a natural antibiotic that can act both internally and externally. It can be used as a conventional treatment for wounds and burns by disinfecting wounds and sores from major species of bacteria such as methicillin resistant Staphylococcus aureus (MRSA). A 2005 study published in the British Journal of Surgeryfound all but one of patients who suffered from wounds and leg ulcers showed remarkable improvement after applying a topical application of honey.
Dr. Diane Radford, a breast surgical oncologist in St. Louis, Mo., told Medical Daily in an email, Manuka honey has antibacterial properties for wound healing. “The precursor for the active antibacterial agent methylglyoxal (MGO) comes from the nectar of mānuka trees. A specialized research unit at the University of Waikato is looking into the conversion to the active product,” she said.
Honey has been utilized for its medicinal properties for over 2,000 years and continues its legacy as a multipurpose health aid.
http://www.medicaldaily.com/liquid-gold-7-health-benefits-honey-could-heal-your-whole-body-325932

Friday, 20 January 2017

3 Breathing Techniques for a More Effective Workout

You’ve been doing it about 20,000 times a day since the moment you were born. In fact, you’re doing it right now. More importantly, experts are saying you’re doing it all wrong.



We’re referring to breathing, which seems like such a natural act that we only think of it when we’re huffing and puffing at the end of a 10k — not while walking to work, eating breakfast, or any other normal activity.
What exactly does it mean to say we’re all breathing “wrong?” If you’ve made it this far, it seems like you’ve been doing an OK job. Oxygen is coming in; carbon dioxide is going out. But, according to Noam Tamir, CSCS, founder of TS Fitness in New York City, while we might be getting by, we could be breathing better. In fact, improving our breathing could help to lower blood pressure, decrease stress, improve athletic performance, and maybe even increase brain size.

Breathe In, Breathe Out: Common Breathing Mistakes

When Tamir works with a new client, the first thing he puts them through is the Functional Movement Screen to assess any major muscle imbalances. Closely following the FMS is a breathing assessment. During the evaluation, Tamir is looking for any one or a combination of breathing inefficiencies we’ve developed over time. The term “inefficient breathing” can mean various things depending on who you ask, but for Tamir, it breaks down to these three mishaps:


Chest Breathing
Rather than breathing deeply through the belly using the diaphragm, it’s common to see breathing through the top of the chest, Tamir says, which forces the body to rely on other muscles not built for the task at hand. When you breathe through the chest, “you’re using a lot of ancillary muscles, such as those in the neck, that you really don’t need to use.” This can also reinforce neck and shoulder tension common among office workers. Following the age-old principle “Use it or lose it,” this reliance on ancillary muscles also weakens the diaphragm. A weak diaphragm will fatigue easily during exercise, meaning your muscles won’t receive the optimum amount of blood flow during your next CrossFit WOD or 5K.
Shallow Breathing
Another bad habit when it comes to our breath? We’re working too hard to get in the oxygen that we need. Rather than taking deep, full breaths, we’re resorting to shallow, quick ones, forcing the body to work overtime to get the same amount of oxygen, Tamir says. This could partly be due to poor posture, most prevalent among those who slump over a screen all day (not to mention gym-goers who overemphasize mirror muscles instead of focusing on balance). With the shoulders hunched forward, we lose part of our ability to expand our diaphragm and take the big, full breaths that can boost workout perfomance, increase efficiency, and help manage stress.
Lack of Rhythm
No, we’re not talking about the kind you would see on the dance floor. If you’ve ever focused on your breathing while running to help pass the time, you’ve likely noticed a specific rhythm to your breath. Perhaps it matched the pace of your footsteps (cadence) or your arm swing. Whatever the pattern, breathing smoothly and rhythmically can play a calming role, particularly in athletes, says Tamir. If your breathing is erratic, it’s hard to get into the zone — whether that’s busting out your last track interval or burning through your last set of squats.


3 Breathing Techniques to Boost Performance

Breathing has a huge impact on our health and fitness, but we’re probably not taking advantage of it just yet. The good news is that anyone can improve their breathing with even a small time investment, Tamir says. And it all starts with basic awareness. Tamir recommends focusing on just your breathing one to two times a day, starting with just one minute at a time. Seem doable? Here’s your playbook for success.
1. When you’re at your desk…Take advantage of the stress-relief properties of proper breathing. Deep breathing has been shown to increase activity of the parasympathetic nervous system, the system opposite our fight-or-flight response responsible for a calmer, more tranquil demeanor. If possible, Tamir suggests working on your breathing lying on the ground with your feet up against a wall, which removes gravity from the equation. (You can also get similar benefits from doing the exercise in your chair or standing if you want to avoid the stare of your coworkers or classmates.)
Next, put one hand on your chest and the other on your abdominal area. For one to two minutes, take deep, focused breaths, making sure you spend as much time on the exhalation as the inhalation. In fact, Tamir notes that the exhalation will often be deeper than the inhalation. The key with this exercise is to make sure that your abdominals rise before your chest.
2. When you’re warming up…Since breathing has such an impact on athletic performance, the warm-up is the perfect time to refocus the priority on your breath. Spend a few minutes foam rolling your upper body, particularly the areas hampering your ability to breathe correctly (think: chest, shoulders and neck). Then, go through the deep breathing exercise described above before proceeding into your active warm-up. By focusing on your breath prior to exercising, you’re reinforcing proper breathing mechanics before any heavy lifting or HIIT takes place. The result: Less huffing and puffing once the exertion commences, leading to a more efficient workout.


3. When you’re working out…Was it inhale on the way down or on the way up? Was holding my breath good or bad? Trying to remember when and how to breathe while working out can be tough. Here are two tips to help you get it right in the gym:
For heavy loads and max efforts, use the Vasalva maneuver.Val-what? The Valsalva Manuever is a technique that involves taking a deep breath immediately prior to lifting and holding that breath while you lift. Using this method, “You’re creating a lot of intra-abdominal pressure,” Tamir explains. This increase in pressure creates a strong foundation for your body and allows it to handle more weight. Before approaching a max-effort deadlift, for instance, lifters would stand over the bar and prepare for the lift. Right before setting their grip, they would take a deep breath in and hold that air inside the lungs throughout the rep.
Wait — holding your breath during exercise? Wouldn’t that be dangerous? Some research has indeed claimed that the increase in pressure caused by the Valsalva maneuver could have negative health implications (increasing risk of stroke for example). However, a comprehensive recap done by Dr. Jonathon Sullivan, Associate Professor in the Department of Emergency Medicine at Wayne State University/Detroit Receiving Hospital, explains this risk mainly applies to those with preexisting conditions such as uncontrolled blood pressure or other cerebrovascular issues. As with any piece of health advice, it’s best to check with your doctor prior to getting under the bar just to be safe.
For sub-maximal loads, use bracing.The term “bracing” was first coined by Dr. Stuart McGill, a leading researcher in spine mechanics. Bracing involves activating all of your core musculature from all angles to create a “superstiffness” of the midsection. This bracing creates stability throughout the entire core and reduces injury risk. For example, while performing a lateral raise, lifters should tighten their midsection as if they were about to be punched in the stomach (actual punch not recommended!). This involves more than just pulling in your abs. Instead, imagine tightening your abominals, lower back, lats and obliques for 360 degrees of tension. Now, hold that throughout the exercise!
Between counting your macros, hydrating, stretching, foam rolling, and the myriad other habits you have set up to improve your health, breathing is easy to overlook. But, when you take into account how many times you breathe each day? Taking those 20,000 reps into consideration, even the smallest improvements can have a huge impact. Set aside one to two minutes a day to improve your breathing, and then carry those new habits into the office, the gym, or wherever else the day takes you. You’ll huff and puff your way to a fitter, faster and stronger you!
by 

Thursday, 5 January 2017

The Science of Developing Punching Power

There are many legends in the sport of boxing



The ones who get the most attention are usually the big hitters: Tyson, Foreman, Marciano, Hearns, Durán, and most recently Golovkin. Some sports writers and coaches would say that devastating punching power is a gift. Yes, talent does prevail, but the fact is that punching power can be developed, much more than you might believe.
Surprisingly few boxing coaches and trainers know the most effective ways to develop this power beyond hitting a heavy bag. Lifting weights is an obvious solution, but often the strength developed from heavy bench pressing doesn’t translate into knockout power.
1 – One reason for disappointing results with strength training to improve punching power is a lack of understanding of the concept of sport specificity. Using bands in simulated punching movements is a terrible idea, invented/promoted by people who have no clue on how to train. 
Bands provide the most tension at the end of a movement, and as such they will affect coordination patterns. More precisely, the bands decelerate the arms towards the end of a movement rather than the biceps; when the fighter goes back to trying to punch without the bands, often they decelerate too late or too early. Decelerating too late cause harmful hyperextension of the elbow, and decelerating too early reduces punching power, and give the opportunity to the opponent to serve you a McGregor special.
2 – Another type of sport specific issue is shadow boxing with 1-to- 2-kilo dumbbells. Yes, I realize Mayweather does this, but my opinion is he has become a champion despite using these weights rather than because of it. There are literally hundreds of thousands of people who will back up this statement. Let me explain.


In the 1970s, walking and running with dumbbells was a fitness fad. Due to a physics principle commonly referred to as Newton’s Second Law of Motion, the dumbbells increase the momentum of the arms and therefore force the joints beyond their range of motion. The fad faded away as people discovered that the ballistic exercise caused overuse injuries in their shoulders and elbows. So this exercise makes no sense for a boxer; using dumbbells in this manner increases the stress on the upper body (and on the lumbar spine as well, from the excessive torque such training causes) and adversely affects the fine-movement patterns of a boxer’s punches.
To be used with moderation (the punching bag that is).

3 – What about spending extra time on the heavy bag to develop “Hands of Stone” like Durán? Yes the heavy bag does improve punching power, but it has to be used intelligently. First, a fighter shouldn’t use the heavy bag every day, as it places extremely high levels of stress on the shoulders. Here is scientific support from a review of research studies on boxing injuries published in the sports medicine textbook Epidemiology of Sports Injuries (Human Kinetics, 1996): “The second most common site of upper extremity injuries [the first being the hand and wrist] involves the shoulders. As expected, the repetitive and forceful delivery of punches is responsible for the relatively high frequency of extremity injury.”
4 – I prefer to focus on heavy bag training in the early stages of training, in what strength coaches would refer to as the preparatory phase. As a fighter’s competition approaches, I prefer that they focus more on double-end bags (which are attached to both the ceiling and the floor with tight coils). This type of bag snaps back rapidly when punched, simulating the action of an opponent and thus enabling the fighter to practice counterstriking and defensive movement skills. It also has less impact on the shoulder. In contrast, standing bags – although convenient because they don’t take up much space and can be moved – are generally heavy and stiff and convey too much impact to the shoulder. I must also mention that the week before the fight I like to stop all heavy bag work so that the athlete is fresh for the fight.
5 – Another mistaken practice is trying to develop punching power by training like a bodybuilder. Bodybuilders often perform their exercises with 12-15 reps, which not only gives them a “pump” in their muscles but also prolongs the time the muscles are under tension, which is critical to muscle growth. Research shows, however, that this increase in muscle bulk does not transfer well to boxing.
Support for this phenomenon can be found in a study by Dr. Andrew Fry published in Sports Medicine in August 2004, which looked at the muscle fiber types of bodybuilders, powerlifters, and Olympic-style weightlifters. Powerlifters in the study performed the bench press, squat, and deadlift in competition; weightlifters performed the snatch and clean and jerk. Dr. Fry found that the predominant muscle fiber type in bodybuilders is the slower and weaker Type 1, whereas the more powerful Type II fibers are predominant in the powerlifters and weightlifters. How do weightlifters and powerlifters train? Heavy weights and lower reps – in fact, weightlifters (the group that had the highest percentage of fast-twitch fibers) seldom performed more than three reps per set!
6 – In terms of what types of weight training exercises a boxer should perform…
… I believe squats are a great exercise, but full squats tend to add too much bodyweight and could move a boxer up a weight class. So what types of leg exercises are best for a boxer?
7 – For training the legs, I prefer to do split squats and lunges, as they better recreate the movement patterns that are used in a fight. I also like Romanian rhythm squats to develop explosiveness. With this exercise you alternate between 10 reps of the regular quarter squat and 10 reps in a quarter squat where you come up on the balls of your feet – you continue in this manner until you have performed a total of 50 reps.
8 – As for Olympic lifting movements, power cleans and jerks are great exercises for developing the muscle fibers used in boxing.However, these exercises are complex and should be taught by someone experienced in coaching these lifts; when beginners learn these exercises incorrectly, it is difficult to correct these errors as they get older.
9 – Although bands are not a good idea to use for simulating punching, they can be used with good results in many weight training exercises for boxers; likewise chains. For example, one of the best upper body exercises to increase punching power is the incline bench press. I would use chains on this exercise in the preparatory phase, and then switch to bands as a competition neared because their effect on the barbell in increasing eccentric (lowering) load is more sport specific to boxing.
ball10 – I would also combine incline presses with medicine ball work, a training method called contrast training, which is based upon the neurological phenomenon called post-tetanic facilitation (PTF). PTF refers to the training concept that a more powerful muscular contraction can be achieved if that contraction is preceded by a strong muscular contraction. For example, a boxer might perform a heavy set of three reps in the incline bench press with bands, followed immediately by about a dozen medicine ball chest passes. I find that although medicine ball training is overrated as a single training method, it becomes much more effective when preceded by heavy weight training exercises. I learned this from Charles R. Poliquin back in 2002 and applied it with excellent results since then.
11 – Another valuable exercise for boxers is the chin-up. Just as it’s important to train the primary muscle groups used in punching, such as by performing incline presses and dips to strengthen the pectorals, anterior deltoids, and triceps, it’s equally important to train the opposing (antagonist) muscles. I do several variations of chin-ups, but the key is to make the exercise progressively more difficult by performing them with additional resistance. Take, for example, Yuriorkis Gamboa, the 2004 flyweight Olympic champion and WBA super featherweight champion, with a professional record of 23-1 that included 16 knockouts. I got his upper body strength to the level where he was able to perform chin-ups with 55 kilos (121 pounds) attached to his waist!

12 –  It’s best to outfit your gym with thick-grip barbells and dumbbells rather than conventional weight training equipment. You can’t punch hard with injured wrists and hands, and working with thick-grip equipment is one of the best ways to strengthen these areas.
13 – Finally, it’s important for fighters to avoid long duration steady state aerobic work because this type of training will cause fast-twitch muscle fibers to behave like slow-twitch fibers. Energy system training is important, but the type of endurance a fighter needs is best developed with interval training, not steady-state aerobics.

A powerful punch is essential in boxing. By using the ideas in this article you will ensure that your training programs help fighters achieve the highest levels of physical superiority in the ring.

By : Strength Sensei - Coach Poliquin's  

http://www.strengthsensei.com/the-science-of-developing-punching-power/