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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

Tips to treat tendonitis

Sometimes it’s hard to know if your ongoing, chronic pain is coming from your joints, muscles, ligaments, or tendons. It could be tendonitis. Learn more.

If you’ve ever trained for Physical Fitness (PFT) and Physical Readiness (PRT) tests, a long-distance race, or other exercise routines, you’ve likely experienced pain. It might be a common, chronic overuse injury known as tendonitis. The good news is there are things you can to do to help reduce your risk of tendonitis.

Tendons connect your muscles to your bones and help you move by “pulling” on the bones when your muscles contract. Damage or inflammation can occur from repetitive activities, motions, or sudden movements that put too much stress on your tendons. Knees, elbows, and wrists are all common areas of pain associated with tendonitis because they’re often used in repetitive movements.

Pay attention to your body. Warning signs can include pain, swelling, and loss of range of motion. Here are some tips to help prevent tendonitis.

  • Maintain a healthy diet and weight, and check out HPRC’s Nutrition section for helpful nutrition tips.
  • Pay attention to your posture and make sure that you use proper form, especially when lifting and moving heavy objects.
  • Maintain a well-rounded exercise routine, which includes muscular fitness, flexibility, mobility, and cardiovascular endurance.
  • Make sure to incorporate rest and cross-training days to let your body recover.

Already have tendonitis? Here are some tips to help you get back into your workout routine:

  • Alternate exercise to rest the affected area. Instead of running, try biking or swimming to rest possible patellar (knee) tendonitis. Visit HPRC’s RX3 Knee Pain section on knee exercises and other rehab resources.
  • Ice the affected area to reduce pain and swelling.
  • Ask your healthcare provider about physical therapy and anti-inflammatory medications, which also can provide some relief.

See your doctor right away if you experience fever, redness or warmth in the affected area, or pain in multiple locations.

Thanksgiving turkey trot

Don’t forget about your exercise routine this Thanksgiving.

Before you gobble up your Thanksgiving dinner, consider starting your day off with a calorie burn! Pretty much wherever you are, you can find a road race—Turkey Trot, Drumstick Dash, or Gobble Gait—and most are family friendly.

If you’re prone to “holiday stress,” particularly if you’re hosting, it can be a great way to relieve some tension and mentally prepare for the day ahead. If you’re not up for the race crowds, or there isn’t a race nearby, there are lots of other options for getting in some exercise. Find a quiet road for a quick run, go for a bike ride, or enjoy some fall foliage on a hike. Whatever floats your gravy boat.

Happy Thanksgiving! Thank you to all service members and their families too.


Compression garments: Do they work?

Compression socks, sleeves, and other garments are popular among athletes, but do they actually increase performance and decrease recovery times?

Compression garments come in a variety of sleeves, socks, shorts, and full-body suits. The amount of pressure, or compression, they provide depends on the type and size of the garment. Compression garments help push blood toward your heart and prevent it from “pooling” or collecting in the compressed areas. Compression sleeves also are used in clinical settings for those with lymphedema, where blood circulation is poor, or to prevent blood clots.

But can they increase your performance and decrease your recovery times? Compression garments have been shown to help blood flow to working muscles during exercise, but that necessarily doesn’t translate to better performance. Most studies look at compression socks during running, and most evidence suggests no difference in athletes’ performance levels during runs when compared to those not wearing compression socks. In addition, there’s no decrease in recovery time or blood-lactate levels.

Still, those wearing compression socks report “feeling better” and “less tiredness” in their legs during their runs. They also feel less sore following the exercise bout. And while there might not be an actual benefit of wearing compression gear, if you feel better wearing it—either during or after exercise—then keep doing what works!

Football season fitness

Football season is well underway. Make sure your healthy habits don’t take a hit on the weekends.

Brisk fall weather means it’s the perfect time to hit the couch for a weekend of watching football. But don’t let all the hard work and smart decisions you’ve made during the week go to waste. Avoid weekend binging and (too much) lazing by staying active during commercial breaks and making healthy choices when it comes to snacks.

The average football game consists of about 11 minutes of actual play—so you’re watching huddles, replays, and commercials in-between. Use that downtime to your advantage, call an audible, and get moving during time-outs!

  • Complete a quick DIY workout during commercial breaks.
  • Go for a jog around your neighborhood during halftime.
  • Remember to make healthy food choices too.

Check out A Football Fan’s Guide to Food and Fitness for ways to stay healthy and active during football season.

Training by suspense

Learn how to get a total-body workout with suspension training, using just your body weight as the resistance to perform exercises that build strength, flexibility, and balance.

Suspension training is popular among both civilians and service members, for good reason. If you’re on deployment or otherwise traveling, it isn’t practical to lug around heavy exercise equipment. But pack a couple of suspension-training straps, and you’ve got part of a well-rounded training routine covered. Once the straps are securely anchored to something sturdy enough to hold your weight, just place your hands or feet into the loops, and your body weight enhances the effectiveness of exercises such as pull-ups, push-ups, lunges, core strengthening, and more.

While there are various ways to adjust and adapt the exercises for less experienced exercisers, this type of workout does call for some initial joint and core stability. There’s also potential risk of injury, especially for beginners. Before you try this for the first time, it’s a good idea to get some advice and guidance from a suspension-training professional. More gyms are now offering suspension-training classes, so you also can use one of these to get started. In the meantime, visit the National Strength and Conditioning Association’s page about suspension training for an idea of what to expect.

EPOC-alypse, now!

Some exercise programs claim their workouts give you “afterburn.” But does your body continue to burn calories after exercise?

Have you ever raced to the top of a long flight of stairs and found yourself gasping for breath just minutes later? Excess post-exercise oxygen consumption (EPOC), also known as “afterburn,” occurs after strenuous exercise as a way to bring your body back to its normal metabolic rate. It takes time for your body to replenish the oxygen used up during exercise, and during this time you continue to burn calories as a result of your elevated metabolism.

You might have experienced EPOC after completing a tough workout, remaining hot and sweaty even 20–30 minutes later. The good news is that it doesn’t take a long workout to achieve that afterburn. Still, it means your workouts need to be more intense. Rounds of short bursts of high-intensity exercise—such as cardio or resistance training—followed by a period of low-intensity exercise or rest is the best way to achieve afterburn. This style of intermittent high-intensity exercise can burn more fat, improve glucose tolerance, and even increase your aerobic fitness. Many commercial programs and gyms claim their workouts will increase EPOC, but this isn’t “new science.” And you don’t have to pay extra money to achieve the same results.

Split your cardio workout into two shorter sessions of higher intensity to accomplish a longer afterburn. For example, if you usually cycle for 50 minutes after work, do two 25-minute rides instead: one before work and one after work. Or replace your normal resistance training with supersets: Pair 2 exercises of opposing muscle groups and complete them back-to-back with minimal rest. For example, combine pull-ups with pushups into one superset, completing 8–12 repetitions of each exercise for 3–5 sets. You also can do a full-body workout by combining 3–4 different supersets. Remember to maintain proper form because it reduces your risk of injury too.

Stop shin splints

Shin splints—sharp, sore, and/or throbbing pain that runs down the front of your shin—are common among those who exercise regularly. But how can you prevent them?

Shin splints can sideline you from your regular workouts, but there are things you can do to help relieve the pain and quickly resume your exercise routine. Shin splints—a common injury among athletes, particularly runners—refers to pain in the leg below the knee, usually on the medial (inside) part of your shin. This pain can be caused by micro-tears at the bone tissue, possibly caused by overuse or repetitive stress. The best way to prevent shin splints is: Don’t do too much, too soon.

Shin splints usually occur after sudden changes in exercise or physical activity, such as rapidly increasing your running mileage, boosting your workout frequency or intensity, or even varying changes in surface, such as running more hills. To help reduce your risk for shin splints, you can follow the 10% rule: Increase your workout no more than 10% per week. That applies to the number of miles you run and how often and how hard you work out.

Other factors that can influence your risk include worn-out shoes, over-pronation, and excessive stress on one leg from running on a cambered road (the curved, downward slope from the middle of a road to the edge for drainage). If you run an out-and-back route, while not always safest in street traffic, you can run on the same side of the road each way. Or use the sidewalk instead. If you often run on a track, switch the direction you run.

Shin splints will usually heal themselves with proper rest. Consider taking a break from your regular workout routine and cross train with lower-impact workouts such as swimming, pool running, or biking instead. Basic self-care treatments such as stretching, ice, and anti-inflammatories can help relieve pain. If the pain doesn’t improve with rest, or if the skin is hot and inflamed, see your doctor to make sure you don’t have a more serious injury such as a stress fracture or tendonitis.

Can exercise relieve chronic pain?

If you struggle with chronic pain, you might ask, “How can I exercise if I’m in pain?” or “Won’t exercise make it worse?” Read about exercising to reduce pain.

If you struggle with chronic pain, you might feel that exercise is futile: It hurts when you don't exercise and it hurts when you do. However, a properly structured exercise routine might help reduce some kinds of pain and keep other kinds from worsening.

It’s important to know the difference between chronic pain and injury-related pain. Acute pain—the body’s normal response to physical injury—usually can’t be relieved through exercise. In fact, exercise can worsen your acute pain, so it’s not recommended. But if injury has been ruled out and your pain lasts for more than 3 months, you might be able to partially manage or even reduce your chronic pain through exercise.

Still, exercise can help reduce pain in several ways. It mostly increases endorphins—the body's natural painkillers — which help block pain, enabling you to relax. Exercise also helps boost serotonin—a brain chemical partly responsible for mood and the perception of pain—reducing stress and improving mood. Pain increases stress, which then reduces serotonin. Since exercise increases serotonin, it also might bring relief from pain-induced depression.

If you’re thinking of adding exercise to your pain management plan, consider the following types: aerobic, strength, and flexibility. But make sure your exercise program is specifically tailored to your needs. Some exercises might be easier or more difficult to complete depending upon the type and location of your pain.

Visit HPRC’s Physical Fitness section for information about training, exercise, and injury prevention. And consult your healthcare provider before beginning any exercise routine and if you experience pain during or after exercise. 

Vertical core training

Get off the floor and strengthen that core!

Your core is more than just your abs: It includes lots of other muscles that stabilize your shoulders, hips, and pelvis. Strengthening all of your core muscles can be difficult with traditional “ab routines” done on the ground. Crunches aren’t the only way to strengthen your core. So, get up off the floor and add something new to your core-workout routine.

HPRC offers a video series on vertical core training. These routines are not only good for your six-pack, but improve strength in your back, hips, legs, and shoulders—all critical components of core strength. Whether it’s lifting ammo cans or loading a truck, a strong core will help you move safely and efficiently.

Visit HPRC’s Muscular Fitness and Flexibility page to learn more. Use these videos to guide you through various exercises that will help improve total core strength, flexibility, and stability for everyday activities and optimal performance too.

Fit kids for life

September is National Childhood Obesity Month. Learn how to help your kids get active and stay healthy.

There’s an obesity epidemic in this country, and it’s not just affecting adults. Childhood obesity impacts more than 23 million children and teenagers in the U.S., putting them at risk of high blood pressure, diabetes, and cholesterol.

More recently, the U.S. military has taken action because it considers childhood obesity a threat to our national security. Many young adults aren’t fit to fight. Now’s the time to instill healthy exercise habits in your kids to help them become healthy adults.

Regular exercise can build strong muscles and bones and promote overall health. It’s especially important that children exercise and learn healthy habits early on. Exercise also can boost kids’ self-esteem, improve sleep, and stimulate learning in school.

According to the Physical Activity Guidelines for Americans, children and adolescents need at least 60 minutes of physical activity every day, including:

  • Aerobic exercise for most of the 60 minutes. On most days, this can include either vigorous-intensity activities (such as running, swimming, and jumping rope) or moderate-intensity activities (such as walking or skateboarding). Make sure to include some vigorous-intensity exercise at least 3 days each week. Check out Let’s Move! for ideas on how to get active as a family.
  • Muscle-strengthening activities. These can include playing tug-of-war, exercising with resistance bands, or climbing on playground equipment. Strengthening exercises should be done at least 3 times a week.
  • Bone-strengthening (impact) activities. These can include running, jumping rope, basketball, tennis, and hopscotch. Impact activities, which strengthen bones and promote healthy growth, also should be done at least 3 times a week.

Learn more about DoD's efforts to help keep your kids active and healthy. Check out the Centers for Disease Control and Prevention (CDC) page for resources and tips to help raise awareness about National Childhood Obesity Month too. And visit HPRC’s Staying Active section for ideas on how to boost your family’s fitness.

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