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: Total Force Fitness
In the war against childhood obesity, senior military leaders are taking a stand in the name of national security. The retired generals and admirals of “Mission: Readiness” are doing their part to combat childhood obesity by calling on Congress to remove junk food and high-calorie drinks from schools by adopting the Institute of Medicine standards for what can be served in schools, increasing funding for more nutritious meals, and supporting the development of public health interventions. The group is concerned that current school policies and lack of high nutritional standards are leading to unhealthy food choices in the form of vending machine snacks and sugary drinks. As much as 40% of children’s caloric intake occurs at school, so clearly schools have an important role to play. Retired U.S. Army General Johnnie E. Wilson points out that “We need America’s service members to be in excellent physical condition because they have such an important job to do.” The most recent report by the Mission: Readiness organization estimates that 27% of young Americans are still too fat to fight and not healthy enough to serve their country. In an analysis of military standards, being overweight was the leading medical reason for being rejected from the military between 1995 and 2008. While these military leaders may be fighting for your kids, the real battle begins at home. Encourage healthy eating and lifestyle behaviors by staying fit as a family.
The United States Department of Agriculture’s Supertracker has added a unique and helpful feature that allows users to set calorie target recommendations prescribed by nutritionists, dietitians, and healthcare providers. SuperTracker, a free online tool released in 2011, allows users to assess daily healthy food and lifestyle choices and track their progress. With the newly added feature, users will be able to tailor their unique needs.
About half of all military personnel use some dietary supplements, and military women most commonly use weight-loss supplements. But is there a place for dietary supplements in enhancing women’s health? Dietary supplements, by definition, are intended to “supplement the diet” and can contain a dietary ingredient such as a vitamin, mineral, herb or other botanical, amino acid, or combinations of these and/or other substances or constituents intended to be consumed by mouth.
Active women may require more nutrients, but vitamin and mineral needs normally can be met by eating a variety of nutrient-rich foods. The Dietary Guidelines for Americans focus largely on the recommendation that nutrient-dense foods and beverages—such as fruits, vegetables, whole grains, low-fat dairy products, lean meats and poultry, eggs, nuts and seeds—can provide all the nutrients needed by most everyone. These recommendations are based on research that shows a varied, healthy diet lowers the risk of most diseases.
Some dietary supplements have been found to be beneficial for women’s health, such as folic acid, iron, and calcium. Folic acid, a B vitamin involved in the production of new cells in the body, has been shown to help prevent birth defects. Women who are thinking of becoming pregnant or are pregnant should take a supplement that includes 400 micrograms of folic acid per day. Fortified foods such as green, leafy vegetables, enriched whole grain breads, flour, pasta, rice, and most ready-to-eat cereals also contain folic acid. Adolescent girls, women of childbearing age, and especially pregnant women also need more iron, which is a mineral involved in the transport of oxygen in the body. Women in these groups should choose iron-rich foods, particularly red meat, fish, and poultry, as well as iron-fortified foods. When iron levels are low, symptoms may include feeling extra tired and weak, along with a decrease in immune function. A healthcare provider or dietitian can determine the need for supplementation if diet alone cannot maintain iron levels or for those who have iron-deficiency anemia. Calcium is an important mineral that helps maintain strong bones, healthy teeth, and proper functioning of the heart, muscles, and nerves. All women should strive to get their calcium from foods such as low-fat milk, yogurt, cheese, dark-green, leafy vegetables, and foods such as orange juice and soy milk that have been calcium-fortified. Those who may need more should discuss calcium supplement options with a dietitian, since there are many forms available and it is important to determine how much and which kind is suitable for your particular needs.
Some dietary supplement products marketed for weight loss are targeted toward women. Do they work? According to the Food and Drug Administration (FDA), some weight-loss supplements contain hidden prescription drug ingredients. For additional information, see Operation Supplement Safety’s (OPSS) “Are there any safe supplements to help me lose weight?” Furthermore, women looking to enhance their performance may turn to dietary supplement products. OPSS has additional resources for competitive athletes to search for particular products that are certified, as well as helpful red flags on what to avoid.
Some women’s nutrient needs differ from those of men, and they can vary over the course of a lifetime. From adolescent girls, to women of childbearing age, to women over 50, these needs change based on the demands of the physiological changes that occur in the body. One thing is certain: A variety of nutritious food is really the spice of life and should be the basis for fueling all of life’s stages.
Exercising outdoors can be a fun way to get in shape, enjoy the beautiful weather and do something fun as a family. No gym or equipment is necessary for a run on a trail, bike ride, or hike—and the scenery is much better! Kids can use their scooter, skateboard, or bike to keep up with mom and/or dad. You can even include strength exercises during your outside adventure! A playground or park can be a great destination for some exercise with children. Monkey bars, park benches, and other fixtures found at playgrounds can be used for pull-ups, tricep dips, and core exercises. Here are some additional suggestions from HPRC on exercising without a gym or equipment. And before you step outside, check out these tips if you plan on hiking or running on a trail.
Chubby cheeks on little ones are cute, but you want your child to outgrow them. The number of obese and overweight children has almost tripled since 1980, resulting in an increase in cardiovascular disease and other health issues—a trend reflected in the body-fat condition of today’s military trainees. Doing activities as a family not only gets kids moving, but also gets you moving! Children need at least 60 minutes a day of play involving moderate to vigorous exercise. This can be done throughout the day— at recess, during after school activities, playing at home—and doesn’t have to be done all at once. Let’s Move! has a list of simple steps you can do to encourage your child to live a healthy lifestyle. One idea: Have a house rule of doing jumping jacks during television commercials. For even more ideas, check out the CDC’s Strategies and Solutions for parents and communities.
Why has the F-22 Raptor been depriving its pilots of oxygen for the last 12 years? Air Force officials recently told a House subcommittee hearing (a complete video of the two-hour hearing is also available) that they don’t know what’s behind the dizziness, confusion, blackouts, memory loss, fatigue, and eventually chronic cough (“Raptor cough”) that pilots experience while flying the stealth jets. After more than a dozen incidents between 2000 and 2011—and one fatal crash—where pilots were being choked by the plane, the Air Force’s entire F-22 fleet was grounded in May 2011.
Investigations ruled out low blood sugar and dehydration as possible causes of the symptoms and eventually concluded that the problem was an overinflated pressure vest that restricted breathing.
In response, a team of NASA engineers and Navy divers developed a new-and-improved pressure suit and back-up oxygen systems and removed a faulty charcoal air filter. These measures seem to have alleviated the problems—a dozen F-22s recently were deployed to Japan without incident. Now restrictions are being lifted, although the jets and their pilots are being closely monitored. Pilots currently must operate under altitude ceilings so that they don’t need to use the flight vests, and they must also stay close to emergency landing sites. Experts and scientists continue to investigate the primary cause of these incidents as well as improve safety and back-up systems.
Ever have a buddy ask, “What’s going on inside your head?” Now you can look at the inner workings of the mind—“Interactive Brain” helps you understand how specific parts of the brain can impact basic functions and performance. This tool provides facts about the functions of the right and left sides of the brain, as well as the anatomy of vision, including videos of how head injuries affect eye movement. By going through the sections and clicking the links on the diagrams, you’ll also gain insight into how certain brain injuries such as mild to moderate TBIs can impact performance. Be sure to watch the introductory and anatomy videos that accompany the interactive diagrams, especially if you want to understand traumatic brain injury better.
CHAMP and HPRC hosted a conference in conjunction with American College of Sports Medicine and National Academy of Sports Medicine on September 10–11, 2012, on “Preventing Injury through Functional Movement Assessment: What We Know, What We Don’t Know, and Where We Go From Here.” For more information about the conference, check out HPRC’s Summary Report. For a brief explanation of functional movement assessment, read HPRC’s Overview about one form, FMS.
The Army has changed the name of its Comprehensive Soldier Fitness program—its new name is Comprehensive Soldier & Family Fitness – CSF2. The resilience-enhancement program now includes spouses and allows them to be trained and serve as Master Resilience Trainers (MRTs). In CSF2, spouses can attend a 10-day, 80-hour course—the same program as for soldiers—and then can go on to help train other spouses in resilience and psychological health.
Developing technology in order to save the lives of those who serve is vitally important. To that end, Worcester Polytechnic Institute (WPI) recently received a $1.5 million grant from the U.S. Army to develop monitoring sensors that will be able to detect blood loss early, which may help save lives on the battlefield. WPI will partner with the University of Massachusetts Medical School to create wireless sensors that can be worn on the body to detect blood loss, body movement, and posture. They will also be working to combine that information with smartphone technology that medics can use as a handheld diagnostic device in rapid-response situations.