Welcome to the HPRC Blog. We've got lots of information here, from quick tips to in-depth posts about detailed human performance optimization topics.
HPRC Fitness Arena: Physical Fitness
Heart disease is the #1 cause of death among adults in the U.S.—deadlier than any form of cancer. Risk factors for heart disease include high blood pressure, high cholesterol, diabetes, overweight/obesity, family history, and smoking.
So what can you do to protect yourself protect yourself and your loved ones? First, know your risk factors. There are some things that you can’t change, such as your family history, sex, and age. But there are many things you CAN change through lifestyle choices.
Regular exercise can help you manage many risk factors such as weight, blood pressure, and cholesterol. By now, you’ve probably forgotten about your New Year’s fitness resolutions! Get back on track: commit to at least 30 minutes of moderate to vigorous activity at least 5 days a week. You can even stay active at work!
Remember to make healthy food choices and manage your stress too. Check out the newest Dietary Guidelines for the latest recommendations on eating right. Reboot those fitness and nutrition resolutions to stay ready, resilient, and fit.
Is it safe to exercise when you’re sick? Those who have strict workout schedules aren’t likely to let the sniffles get in the way of their physical fitness. Exercise benefits include better weight control, improved mood, more energy, and healthier sleep. What’s more, just 30 minutes of regular exercise 5 times each week can improve your heart health and boost your immune system too.
Moderately exercising while you’re sick can be safe and, in certain cases, might actually improve symptoms such as congestion and low-energy. First, you need to determine “how sick is sick.” You can figure this out by using the “neck rule.” If you have symptoms above the neck—including sore throat, nasal congestion, sneezing, or watery eyes—then moderate workouts can continue. If your symptoms are below the neck—including cough, fever, fatigue, or body aches—then rest until the symptoms are gone. You can also use your temperature to determine whether exercising is okay. If you have a temperature of 101°F or higher, moderate or vigorous exercise isn’t safe due to risks of heat-related illnesses and dehydration.
Ultimately, the decision to exercise when you’re sick is up to you. If you’re too weak and fatigued to get out of bed, exercising might not be the best choice. If you have symptoms of a cold and your temperature is below 101°F, light to moderate exercise could be good for you. Make sure to see a doctor if your symptoms don’t improve or get worse.
Proper running form can help improve your overall efficiency and reduce your risk for injury. We’ve all seen awkward running forms—you can’t help but wince because it looks challenging and sometimes painful to run that way. Following a few simple reminders can keep you injury-free as you reach peak performance.
The brain can “feel” pain even after an arm and/or leg amputation, but a new treatment using mirrors can provide some relief. This common phenomenon, known as phantom limb pain (PLP), occurs in at least 75% of Operation Enduring Freedom (OEF)/Operation Iraqi Freedom (OIF) veteran amputees. Although its causes aren’t fully understood, one theory is that there’s a mismatch between what your brain sees and what it feels.
Mirror therapy offers a promising treatment for those suffering from PLP. A long mirror is placed between the patient’s legs and set to face the intact limb. As the patient moves and watches the intact limb in the mirror’s reflection, the brain is “tricked” into seeing the missing limb. The brain “sees” the phantom limb moving in the mirror and quiets busy activity or bad memories. The mirror positively stimulates the brain, causing reorganization or rewiring; this helps relieve PLP.
Healthcare providers have successfully used mirror therapy to help single-limb amputees. They’ve also adjusted the approach for double-limb amputees. Using an adapted method, a physical therapist (PT) acts as the mirror. The PT sits beside the patient and then mimics or “mirrors” the amputee’s phantom limbs with his/her intact limbs. For example, if a patient complains of calf cramps, the PT can stretch his/her own calves while the patient observes and feels relief in their phantom limbs. They’re currently working on using virtual reality to take the approach a step further.
This summer marks the 36th annual National Veterans Wheelchair Games (NVWG). The events, co-sponsored by the U.S. Department of Veterans Affairs (VA) and the Paralyzed Veterans of America, begin on June 27, 2016 in Salt Lake City, Utah.
Registration deadline is April 15, 2016. Register early as events fill up fast. Any veteran who uses a wheelchair for sport and is eligible for care in the VA system (due to spinal cord injury, Multiple Sclerosis, amputation, or neurological condition) can participate. Need some motivation? Check out this video from last year’s games.
We’re always looking for sponsors and volunteers to help with NVWG activities—come on out and support our vets!
Don’t let cold weather freeze your exercise routine. Use these tips to stay motivated, safe, and warm.
- Dress in layers. Choose synthetic materials such as polyester or polypropylene that stay close to the skin. Avoid cotton since it soaks up sweat! You can always remove layers as you get warmer.
- Protect your extremities—especially your fingers, toes, and ears. Circulation to these areas decreases in cold weather.
- Check the forecast. Wind chill, snow, and rain can make your body more vulnerable to the outside temperatures. Plan an indoor workout when the wind chill is extreme or the temperature drops below 0°F.
- Apply sunblock. You can still get sunburned in the winter so don’t forget the sunscreen!
- Stay hydrated. When exercising in cold climates, don’t rely on thirst to indicate hydration since you usually don’t feel as thirsty in cold temperatures. You need to stay just as hydrated in cold weather as you do when it’s hot outside.
- Ask your doctor. Certain symptoms might worsen in cold weather if you have asthma, heart issues, or Raynaud’s disease (when specific body parts feel numb due to to cold temperatures or stress). Talk to a healthcare professional about your concerns before heading outside for your cold-weather workout.
Looking for some answers to basic fitness questions? You’re not alone. We’ve created a FAQ section on topics we hear a lot about. Whether you want to know about flexibility, cardiovascular fitness, injury prevention, or workout routines—we have the answers. Still can’t find what you’re looking for? Submit your question using our Ask the Expert feature. We’ll provide an evidence-based answer to keep you informed and in shape.
Check back often to learn the latest and greatest information on exercising, optimizing performance, and staying resilient.
There’s an unpleasant situation that runners sometimes experience called “runners’ trots” or diarrhea. While short lasting and generally harmless, they can be annoying and cost you time during training or a race.
Certain activities such as high-intensity or long-duration exercise and vertical-impact sports (e.g., running vs. biking) increase your risk of gastrointestinal (GI) discomfort. Dehydration, poor conditioning, medication, and eating habits can cause GI irritation too. Despite the lack of hard evidence as to what causes these GI issues, there are things you can do to help settle your stomach:
- Avoid trying new foods or sports drinks during a race.
- Increase the time between eating and activity. Wait at least 3 hours after eating a large meal, or eat a smaller meal or snack closer to training time.
- Plan out your meals, especially for endurance events.
- Pay attention to what you eat to help identify foods that increase your discomfort during running. It’s best to avoid these until after you finish your race.
- Limit your intake of gas-forming or fiber-rich foods (e.g., broccoli, onions, and beans).
- If you’re sensitive, avoid coffee and other forms of caffeine before a run.
- Hydrate before and during endurance activities; it will help blood flow to the GI area.
- If you use sports gels or chews for endurance events, drink enough water (three to eight ounces every 15–20 minutes) to stay hydrated.
- Give yourself time to use the bathroom before an endurance exercise.
- Increase distance and intensity gradually.
If symptoms persist for more than a few days, even at rest, seek medical attention. Enjoy your run!
Little things you do during your workday can reduce the amount of time you sit, decreasing your chance of developing certain sicknesses. Many jobs involve hours of sitting. Commuting, sitting down for dinner and TV after work, and then sleeping only add to the time most people sit or lie down in their daily lives. The more time you spend sitting, the higher your risk of chronic illnesses such as heart disease, diabetes, and even some cancers. We offer some ways to move more throughout your workday. Read more here.
Foam rolling can help increase your range of motion (that is, how much your muscles and joints can move) and reduce muscle soreness that results from working out too hard or too long. So how does it work? More research is needed to understand its full effects, but Golgi tendon organs—specialized muscle nerve endings—are sensitive to changes in muscle tension. When you roll over them, the muscles relax. Here are some tips for effective foam rolling:
- Don’t foam roll over newly injured areas.
- If you’re just starting out, you might want to choose a lower-density foam roller. Higher-density foam rollers will provide more pressure.
- Roll to find tight spots in your muscles and then hold your weight over those areas, or continuously roll over a muscle to loosen it.
- Gradually increase the amount of time you roll over each muscle. If you’re just starting, foam roll 1–2 minutes per muscle group.
- Focus on large muscle groups such as your quads and upper back.
Check out HPRC’s how-to videos on foam rolling calves, hamstrings, glutes, and more. Roll on!