Filed under: Strength training
The saying goes that “less is more,” but when it comes to exercise intensity, that might not be the case. We know that some exercise is better than no exercise, but is more-intense exercise better than moderate-intensity exercise? How hard should you push? And what are the benefits? What are the risks? With the growing popularity of high-intensity workouts, it’s important to consider both the risks and the benefits.
The role of intensity during exercise has been demonstrated. For example, the risk of death in older adults is lower for those who walk at a faster pace than for those who walk at a more leisurely pace. Short-duration high-intensity interval exercise has similar, if not better, benefits compared to long-duration low-intensity exercise. These benefits include reduced risk for chronic disease, increased oxygen uptake, and overall improved exercise performance. Since the number one barrier to exercise individuals report is not having enough time to exercise, this is important: With increased intensity, workouts can be shorter in duration, and you can still reap the benefits. You also can feel “afterburn” following high-intensity exercise, which means your body is burning calories even after you’ve completed your workout.
The good news is that exercise intensity is relative, so you can benefit from exercise at a level that is you consider high intensity, whether you’re just starting out or you’re a seasoned athlete. Shoot for your target heart rate as a good start to gauge intensity. Not every workout needs to top out the intensity scale. In fact, doing too much too often can lead to overtraining and injury. Remember to listen to your body and incorporate rest or light days into your workout regimen.
Since pull-ups are tough and require a lot of strength, HPRC just created a training program to help you meet the challenge. Achieving a pull-up might be easier for some, but more difficult for others, especially women. Other factors such as body fat, arm length, and height can affect your ability to achieve a pull-up too.
But what that means is—with the right training—you can do it! Check out HPRC’s Pull-up Progression Program for exercises aimed at increasing your strength and helping you achieve your first pull-up.
Service members and their families relocate a lot, and moving to a new home is hard enough without adding injury. Here are some tips on how to properly handle heavy objects such as moving boxes and furniture, and how to take care of yourself if you do sustain an injury:
- Wear less-restrictive clothing such as looser-fitting pants or workout clothes.
- Wear closed-toe shoes.
- Take breaks when necessary. Stretching and reassessing your mechanics can help you maintain proper posture when lifting. HPRC has tips on how to maintain flexibility and remove tension in your body.
- The U.S. Army has fact sheets on Lifting Techniques for handling heavy objects and How to Safely Perform Pushing and Pulling Tasks.
- Remember to keep your core tight, and use your leg muscles rather than your back to lift heavy objects.
The best way to prevent back injury is to strengthen your back and core muscles.
If you’re sore from all the lifting or think you may have pulled something, you can treat the pain with ice and rest—and perhaps an over-the-counter pain reliever—for the first 48 hours. Follow NIH guidelines on how to further treat your back pain if it’s acute. However, if the pain persists, consult your doctor to rule out a more serious back problem or injury before you do any more heavy lifting. If all seems well, consider core-strengthening exercises to support your back. Another option is a yoga class to relieve your pain, build your muscles, and return your back to normal function.
For more about how to protect your back, please visit HPRC’s Injury Prevention Series. Good luck with your PCS!
Have you ever wondered why people who do the same resistance training workouts day after day aren’t getting the results they want? The goal of resistance training is to create an “adaptation response”—that is, to get your body to change in response to the demands. Once your body has adapted to a specific training program, you need to change the demands you place on it. If you don’t, you’ll find yourself eventually reaching a plateau where you don’t make any more gains—or sometimes even lose progress. One way to avoid this common training mistake is to implement “periodization”—the systematic shaking up of your routine (intensity and numbers of sets and reps). This method can optimize your training gains and minimize the risks of overtraining and injury. Implementing these training routines requires a strength training expert, so make sure you seek assistance. For example, the Army has implemented a new program for Master Fitness Trainers. And for more information on strength training, check out the HPRC’s Performance Strategies for Muscular Strength.
Getting enough exercise is important to everyone’s mental and physical health in order to achieve optimal performance. Active-duty Warfighters usually get enough exercise in the course of their mission, but for the rest of us in the sphere of the military—family members, desk warriors, and the like—it can take more effort, so sometimes it’s helpful to review.
The Physical Activity Guidelines for Americans recommend that:
Aerobic exercise: For health benefits, adults should do at least 2.5 hours (or 150 minutes) a week of moderate-intensity exercise, or 75 minutes a week of vigorous-intensity aerobic physical activity, or an equivalent combination of moderate- and vigorous-intensity exercise.
- For the greatest health benefits, adults should do aerobic exercise of moderate intensity for five hours, or 300 minutes, weekly, or 2.5 hours or 150 minutes of vigorous-intensity aerobic exercise, or an equivalent combination of both.
- Do aerobic activity for at least 10 minutes at a time, preferably spread throughout the week.
- Don’t know how to gauge your exercise intensity? Check out ACSM’s video on aerobic intensity or the description from the Centers for Disease Control and Prevention (CDC). Examples of moderate-intensity activities include walking at three miles an hour, water aerobics, biking less than 10 mph, and gardening; vigorous-intensity activities include jogging or running, swimming laps, singles tennis, biking more than 10 mph, jumping rope, and hiking. Another method for determining exercise intensity is to keep track of your heart rate; use this explanation from CDC for how to determine your target heart rate for various activity levels.
- A general guideline for time spent exercising is that two minutes of moderate-intensity activity is equal to one minute of vigorous-intensity activity.
- For exercise ideas, check out ACSM’s video on types of aerobic exercise and/or HPRC’s Performance Strategies on Rebuilding Cardiovascular Fitness.
Strength training: Do muscle-strengthening exercises (resistance of moderate or high intensity) that involve all major muscle groups at least twice a week.
- For muscle strengthening, try doing 8–12 repetitions for each type of exercise. Do at least one set, but try for two or three sets for more benefits, at least twice a week!
- Be sure to work out your major muscle groups, including legs, hips, back, abdomen, chest, shoulders, and arms.
- For some muscle strengthening ideas, check out ACSM’s handout on basic strength-training exercises to do with just your bodyweight or their video of some basic moves you can do at home. Or try ACE’s step-by-step workouts for a total body workout, a 30-minute lunch workout, total body conditioning for parents, and many more. Also, check out HPRC’s Performance Strategies on improving your Muscle Strength as well as your Core Strength!
Finally, remember to stretch after your workouts. For some basic ideas on stretching, check out ACSM’s pictorial sheet, their video on stretching basics, or HPRC’s Performance Strategies to “Improve your flexibility.”
Strength training is an important aspect of military fitness and resilience. Building muscle through strength and endurance training can increase bone density, improve balance and stability, and reduce your risk for injury. There are several training options for getting strong: free weights, machine weights, body-weight exercises, and/or circuit training are all effective strategies for building muscle. For more details, read HPRC’s Performance Strategies for Muscular Strength. If you have never done a resistance-training program, learn the proper form first by working out with a professional instructor, which will keep you injury-free and help you choose a program you can stick with. Training for the PFT/PRT? Read more about building muscular strength and endurance for optimal test results.
Don’t belong to a gym? Don’t own exercise equipment? Deployed with no workout facility close? On TDY? Only have a few minutes during commercial breaks of your favorite TV show to work out? No problem! We have the solution, whatever your excuse. These 25 at-home-exercises from the American Council on Exercise can be done anytime, anywhere. There are step-by-step instructions for each exercise, and all can be performed in a hotel, at home, at work, or in the middle of the desert. The only equipment you need for these exercises is you—so get started today!