NIFS Healthy Living Blog

Thousands of sports nutrition supplements are touted to improve strength, endurance, and a variety of other athletic factors. But do they work and are they necessary? Below are some of the most common supplements advertised for athletes, as well as what they do, how well they work, and how much is safe to supplement. It’s important to note that you should always consult your physician or a registered dietitian specializing in sports medicine before starting any new supplement.

Beta-alanine

During intense exercise, your muscles produce lactic acid, which can reduce muscular force and cause fatigue. Beta-alanine, an amino acid, produces carnosine, a molecule that can help reduce the buildup of lactic acid, which has shown to produce small performance improvements in sports that require high-intensity, intermittent effort over short periods, such as swimming, hockey, and football in some studies; however, its efficacy for endurance activities such as cycling and running isn’t clear.

In healthy adults, beta-alanine supplementation is generally safe. The most common side effect reported is paresthesia, a tingling or burning sensation in the upper body, typically lasting 60–90 minutes after consumption. If you’re interested in supplementing with beta-alanine supplements, the International Society of Sports Nutrition recommends taking 4 to 6 grams each day (1 to 2 grams at meals) for at least 4 weeks.

BCAAs

Leucine, isoleucine, and valine make up the branched-chain amino acids (BCAAs), which are used to provide energy to the body during exercise and might also stimulate protein synthesis in exercised muscle. Short-term studies have shown that BCAA supplementation might enhance overall muscle mass and strength during training, but it is unclear if BCAAs are more effective than any other high-quality protein supplement. While supplementation of up to 20 grams/day in divided doses is generally safe according to the NIH, it is not always necessary because most individuals can take in adequate amounts by consuming plenty of complete proteins that provide all of the essential amino acids together, like meat, poultry, fish, eggs, and dairy products.

Carnitine

Carnitine is a compound thought to help preserve muscle glycogen and spare the use of amino acids during exercise so that they are available for new protein synthesis. The research available to support the effectiveness of supplementation is limited, however, and available evidence is mixed. Additionally, healthy individuals do not need to consume carnitine from food or supplements because it is synthesized sufficiently by the body itself.

Creatine

Creatine is a compound produced naturally in the body (about 1 gram/day), and obtained nutritionally by consuming animal-based foods or supplements, that is stored in the muscles and used for energy. Most sports experts agree that supplementing with creatine is generally safe and can improve certain types of performance, specifically those that involve repeated short bursts of intense intermittent activity (like sprinting or weightlifting), but tend to have little value for endurance exercises, such as cycling, swimming, or long-distance running. For optimal results, experts recommend taking in at least 20 grams of creatine per day (4 doses of 5 grams) for between 5–7 days, before decreasing to a maintenance level of around 3 to 5 grams total daily. Creatine monohydrate is the form most commonly used, recommended, and studied.

The Bottom Line

The supplements discussed above are generally safe when used in the recommended amounts. Many of them are unnecessary for healthy people who consume the correct nutrients. Again, always consult your physician or a dietitian specializing in sports medicine before starting any new supplement.

This blog was written by Lindsey Recker, MS, Registered Dietitian. To learn more about the NIFS bloggers, click here.

More and more in today’s society, people have one resource that seems like it is only getting stretched out thinner and thinner: time. Too many of us seem to be cramming more and more things into our lives, whether that be work-related events, personal interests, or family events. With this ever-growing list of things we have taking time out of our day, many have to choose between stuff they need to get done and things they want to get done. One thing we all know we should do but sometimes choose to skip because of time constraints is exercising.

Now, we all know exercising is something everybody should do. The Centers for Disease Control recommends that every adult who is able to, exercise at least 150 minutes per week, and for many it can be more. But a good amount of people fall out of this group because they simply do not have enough time to exercise.

What is a way someone can get the most efficient exercise output in as little time as possible? The possible solution could be high-intensity interval training, or HIIT (aka HIT)! HIIT is a training technique that is all about intense bursts of exercise, followed by short recovery periods. The idea behind this type of training is that with these short bursts of exercise, the heart rate can remain elevated much higher in shorter time than traditional training.

Incorporating HIIT into Your Workouts

With the definitions out of the way, we can look at just some of the ways you can incorporate HIIT training into your daily fitness lifestyle. Many people opt for the route of either aerobic or resistance-style HIIT. Aerobic is more focused on cardio and increasing cardiac output, whereas resistance has a bit more to do with working the muscles of the body with varying degrees of weight.

Now which style is the best? That depends on what your goals are. But either will be a great route to choose to try and spike that heart rate and get in a great workout without too much time commitment.

The best thing about this type of training is that it can be anything you want it to be. For example, you can elect to do a sprinting-focused workout, or biking, rowing, swimming, etc. The idea is not behind what exercise you do, but rather how you’re doing the workout.

15-minute Bodyweight HIIT Workout

Here is a simple example of an introductory HIIT workout.

3 Rounds: 45 seconds each exercise with 15 seconds of rest

1. High Knees in Place
2. Squats
3. Push-ups
4. Dips
5. Crunches

Don’t Skip Your Workout!

So the next time you are a little low on time and debating whether or not to skip a workout, high-intensity interval training could very well be the answer you’ve been looking for in order to keep up that consistency!

The blog was written by Ricky Rocha, NIFS Health Fitness Specialist. To read more about the NIFS bloggers, click here.

In this blog series, I have discussed the four movement patterns for building muscle and broken them down further with exercise examples you can add to your workouts. Then we discussed two upper-body movement pattens, the pull and the push. In this post I discuss the squat pattern, our first lower-body movement pattern.

The Squat Movement Pattern

The squat movement pattern is a compound movement that works the muscles of the upper legs including the quadriceps and glutes. The squat pattern is an essential movement for your activities of daily living. We use this pattern to sit, to stand, to pick things up off the floor, to walk up the stairs, and for many other activities. It is essential to train this pattern to maintain your lower-body strength as you age to maintain muscle mass and prevent falls. 

Training the squat movement pattern to a full range of motion can also improve your flexibility and bone mineral density. Learning how to squat properly, and to a full range of motion, is essential in a well-rounded training program. Within your training plan you can break this movement into bilateral and unilateral patterns. Bilateral means both legs working at the same time, and unilateral means one leg at a time. Utilizing both bilateral and unilateral patterns will ensure you are not creating any imbalances between your legs.

Squatting Variations

Bilateral

• Barbell Back Squat
• Barbell Front Squat
• Goblet Squat
• Leg Press
• Zercher Squat
• Hack Squat Machine

Unilateral

• Split Squat
• Rear Foot Elevated Split Squat
• Front Foot Elevated Split Squat
• Walking Lunge
• Step Back Lunge
• Step-Ups

Quadricep Isolation Movements

• Leg Extension
• Banded Terminal Knee Extension

Get Training Help at NIFS

For more information on how to properly progress and structure a training program, visit our staff at the track desk to schedule a private session. We are more than happy to help at any time, and as part of your membership here at NIFS, you receive complimentary workout programs. Our Health Fitness professionals tailor all programs to your fitness goals.

This blog was written by Evan James, NIFS Exercise Physiologist EP-C, Health Fitness Instructor, and Personal Trainer. To learn more about the NIFS bloggers, click here.