STATIC STRETCHING The most popular form of stretching, where you hold a muscle in a stretched position and gradually allow time for it to extend. Hold for 20-30 seconds, shorter is not effective, longer is not much more effective. ACTIVE ISOLATED STRETCHING is a progression from static stretching, appropriate if you have no postural distortions. These stretches typically are performed in 1-2 sets of 5-10 repetitions, each repetition is held for 2-4 seconds. Some require assistance, be very careful with these, I dont recommend having someone who is not trained assist you with them. SAMPLE AI STRETCHES
DYNAMIC STRETCHING is for the fit, and is actually more like exercise than a stretch, and includes lunges, pushups with rotation, walking sideways with a resistance band. PNF (AKA Neuromuscular or Contract Relax) STRETCHING PNF means Proprioceptive Neuromuscular Facilitation, and it basically tricks the brain into lengthening a muscle. A trained professional will alternate between stretching your muscle and having you resist against the stretch. Again, many require assistance and I do not recommend having someone who is not trained assist you. SAMPLE PNF STRETCHES
MYOFASCIAL RELEASE is a technique for working out knots and adhesions that limit ability of your muscles to fully extend. Pressure is applied to the knotted area, and after about 30 seconds, the brain sends a signal to the muscle to relax. SAMPLE SMR STRETCHES
Fitness Articles by Cary Raffle | MS Exercise Science and Health Promotion | Certified Orthopedic Exercise Specialist | Certified Personal Trainer
8/05/2009
5/31/2009
Posture and Movement Assessments
I have a confession to make. From the minute I first see you, I am watching your posture and the way that you move and looking for way to improve you. Are your feet turned out? Do your shoulders round? Or are they elevated? Is your head forward? Does your back arch? Do your knees move in our out? If you answer yes to one or more of these questions, you have muscular or structural imbalances that need to be addressed in your exercise program. In many cases, certain exercises should be avoided to minimize risk of injury, and other exercises should be included to help correct the imbalance. For example, someone with rounded shoulders should avoid overhead shoulder exercises and strengthen the muscles that pull the shoulders back.
Posture can be addressed statically, basically in a stationary position, and dynamically, while moving. In addition to casual observations of movement, several assessments allow us to do a more focused evaluation. Here are two of the most common:
Overhead Squat Assessment: This consists of a squat with arms held above the head. Here, I'm looking for whether the heels lift, feet turn out, knees move in/out, low back arches or rounds, or the body leans forward.
Single Leg Squat Assessment: In the single leg squat assessment, look for whether the feel flatten, knees move in or out, or the hip shifts. These observations indicate imbalances in the calves, thigh muscles, back, core and shoulders that should be addressed in training.
Posture can be addressed statically, basically in a stationary position, and dynamically, while moving. In addition to casual observations of movement, several assessments allow us to do a more focused evaluation. Here are two of the most common:
Overhead Squat Assessment: This consists of a squat with arms held above the head. Here, I'm looking for whether the heels lift, feet turn out, knees move in/out, low back arches or rounds, or the body leans forward.
Single Leg Squat Assessment: In the single leg squat assessment, look for whether the feel flatten, knees move in or out, or the hip shifts. These observations indicate imbalances in the calves, thigh muscles, back, core and shoulders that should be addressed in training.
Core Training and Stablility
There are 29 core muscles that work together to keep the body stable as it generates force, absorbs force, changes direction and moves in multiple different planes of motion. An effective functional exercise program trains your core to do all of this. Rather than training in isolation, we integrate core training into many exercises for other body parts. Ultimately, a core that is stronger while performing movements can improve your overall performance and strength and reduce risk of injury.
If your core training program consists mainly of crunches, leg extensions and back extensions, you're working in only one plane and risk overtraining your rectus abdominus. That's the "6 pack muscle" and yes, you can overtrain it to the extent that it increases the risk of injury - and in a way that will surprise you: A tight rectus abdominus pulls the pectorals forward, tight pectorals pull on the shoulders causing them to rotate in, rotator cuff muscles cannot function effectively and are at risk of injury. Running? By pulling on the chest muscles and moving the shoulders and head forward, an overtrained rectus abdominus can reduce your oxygen intake. Exercises that strengthen the deep inner abdominals, and exercises that incorporate core stabilization with other movements, are an essential component.
Public enemy number 1 is the chair, followed closely by the bench. If you spend a large part of your day sitting, it's a good idea to not to sit or lie down through your entire workout every time you train. Chairs and benches do the work of stabilizing your core as you perform the exercises.
If your core training program consists mainly of crunches, leg extensions and back extensions, you're working in only one plane and risk overtraining your rectus abdominus. That's the "6 pack muscle" and yes, you can overtrain it to the extent that it increases the risk of injury - and in a way that will surprise you: A tight rectus abdominus pulls the pectorals forward, tight pectorals pull on the shoulders causing them to rotate in, rotator cuff muscles cannot function effectively and are at risk of injury. Running? By pulling on the chest muscles and moving the shoulders and head forward, an overtrained rectus abdominus can reduce your oxygen intake. Exercises that strengthen the deep inner abdominals, and exercises that incorporate core stabilization with other movements, are an essential component.
Public enemy number 1 is the chair, followed closely by the bench. If you spend a large part of your day sitting, it's a good idea to not to sit or lie down through your entire workout every time you train. Chairs and benches do the work of stabilizing your core as you perform the exercises.
Flexibility
Muscles need to be in proper balance to work together optimally. Our posture and movement assessments will tell us which appear to be too active or short and which appear to be underactive or extended. We need to stretch the short muscles and strengthen or activate those that are long or extended. Stretching and strengthening go hand in hand to achieve flexibility; the genera rule is that when a muscle is tight the opposite muscle is extended.
Here's an easy way to think about this: those muscles that you sit on all day long, your glutes, are probably asleep; the opposite muscles, hip flexors, are flexed all day long and remain short. The hip flexors can get so tight that they inhibit the glute. So stretch the hip flexors, strengthen the glutes, try not to overdo it on exercises that flex your hips... and you are on your way.
Do the same type of assessment and programming for other area of your body.
Here's an easy way to think about this: those muscles that you sit on all day long, your glutes, are probably asleep; the opposite muscles, hip flexors, are flexed all day long and remain short. The hip flexors can get so tight that they inhibit the glute. So stretch the hip flexors, strengthen the glutes, try not to overdo it on exercises that flex your hips... and you are on your way.
Do the same type of assessment and programming for other area of your body.
Advanced Functional/Core Mini Workout
The following are some selected exercises that some of my advanced clients are doing...you might not be ready for them right now but with consistent effort can work towards them. Feel free to ask me to demonstrate them if you don't know what they are:
Tube Walking (Hip Abduction with Band)
Reverse fly with Chest on Stability Ball
Single Leg Deadlift into PNF Pattern (drawing sword)
Single Arm Cable Chest Press/Lunge/Step to balance on One Leg
Single Arm Cable Row/Reverse Lunge/Step to Balance on One Leg
Lateral Lunge/Balance on one Leg/Biceps Curl
Single Arm Cable Triceps Pushdown Kneeling on Bosu Ball
Single Leg Box Jumps (Plyometrics)
We're generally working in a range of 2 sets of 12-15 repetitions. At the beginner and intermediate level, you might start with a standing cable chest press, progress to one leg chest press, then lunging chest press and so on, until you are ready to do the more advanced version of the exercises. One of my most advanced clients had never exercised until about 2 years ago and can do all of these exercises.
Tube Walking (Hip Abduction with Band)
Reverse fly with Chest on Stability Ball
Single Leg Deadlift into PNF Pattern (drawing sword)
Single Arm Cable Chest Press/Lunge/Step to balance on One Leg
Single Arm Cable Row/Reverse Lunge/Step to Balance on One Leg
Lateral Lunge/Balance on one Leg/Biceps Curl
Single Arm Cable Triceps Pushdown Kneeling on Bosu Ball
Single Leg Box Jumps (Plyometrics)
We're generally working in a range of 2 sets of 12-15 repetitions. At the beginner and intermediate level, you might start with a standing cable chest press, progress to one leg chest press, then lunging chest press and so on, until you are ready to do the more advanced version of the exercises. One of my most advanced clients had never exercised until about 2 years ago and can do all of these exercises.
3/04/2009
BODY FAT: Define it. Measure it. Lose it.
Think of Body Fat as Your Body's Way of Storing Extra Energy (Calories) and Protecting Itself
The scientific term for fat is adipose tissue, your body stores extra energy in the form of fat cells in the adipose tissue.
MYTH: When you exercise your body turns fat into muscle, when you stop exercising, it turns back to fat.
FACT: Fat and Muscle are separate and distinct. When you exercise you may lose fat and gain muscle, and when you stop you may lose muscle and gain fat. They don't transform into eachother.
Some of your body fat is called essential fat because it provides insulation and protects vital organs. Men need at least 2-4% and women need 10-12%. The remainder is called storage fat, and that's what send many of you to the gym. Body fat tends to increase with age.
The scientific term for fat is adipose tissue, your body stores extra energy in the form of fat cells in the adipose tissue.
MYTH: When you exercise your body turns fat into muscle, when you stop exercising, it turns back to fat.
FACT: Fat and Muscle are separate and distinct. When you exercise you may lose fat and gain muscle, and when you stop you may lose muscle and gain fat. They don't transform into eachother.
Some of your body fat is called essential fat because it provides insulation and protects vital organs. Men need at least 2-4% and women need 10-12%. The remainder is called storage fat, and that's what send many of you to the gym. Body fat tends to increase with age.
3/03/2009
Body Fat: Let's Not Get Carried Away with the Measurements!
Body Builders and certain competitive athletes may need to obsess about their % body fat, but most of us just need a simple reliable measurement of progress. There are more than a dozen different techniques for estimating body fat, including infrared and x-ray techniques, and one that involves drinking a radioactive isotope . Keep in mind that any approach gives you an estimate based on various measurements and mathematical formulas, you can't directly measure the fat like you can with weight and height. You would have to go through the inconvenience and mess of removing all the fat from the body, weighing it and replacing it to do that. It is best to look at the body fat measurement over time to see changes, and to have it performed by the same competent person using the same equipment. All of the methods have strengths and weaknesses, and research has been conducted to validate them. Here is a recap of the measurement methods:
Hydrostatic Testing - Immersion in a tank of water and measuring displacement is accurate within about 2% for most people. Adjustments by race are made, since African Americans tend to have denser bones while Asians have lighter bones. Air Displacement Plethysmography (The Bod Pod) is a similar but uses air displacement instead of water.
Skin Fold/Caliper Testing - Results are accurate within +/-3.5% for 90% of the population. Results for the other 10% can be off by much more. Variation by tester can be a big factor, so have the same person take the measurements and look for a trend in the results. This technique tends to overestimate body fat for lean individuals and underestimate for obese. Caliper testing needs to be done slowly, carefully and precisely, usually measurements are taken at least three times and averaged for a result.
Bioelectric Impedance - Results are accurate within +/-3% for 82% of the population, and can be off by up to 20% or more for the remaining 18%. Results are inaccurate for small changes and can be affected by hydration, skin temperature, exercise within 12 hours prior, alcohol within 48 hours, food within 4 hours, bladder and bowel content. A body scale once estimated me at 38%, almost 3x the measurement obtained from calipers around the same time.
Circumference Testing - using a few simple measurements, results are accurate within +/-5% for 86% of the population. (There is an online tester available at bodyfat.caryraffle.com, it measured me at almost the same as the calipers and is very easy to use so that you can track your results.)
Ask me - I can usually estimate someone's body fat within a couple of percent, not much less accurate than some of these techniques and a whole lot easier. (Be forewarned, you may have to show me your bare midriff!). If you get a body fat estimate that doesn't make sense - maybe from one of those diet supplement people who set up tables on the streets or at the mall - feel free to contact me for a second opinion.
Hydrostatic Testing - Immersion in a tank of water and measuring displacement is accurate within about 2% for most people. Adjustments by race are made, since African Americans tend to have denser bones while Asians have lighter bones. Air Displacement Plethysmography (The Bod Pod) is a similar but uses air displacement instead of water.
Skin Fold/Caliper Testing - Results are accurate within +/-3.5% for 90% of the population. Results for the other 10% can be off by much more. Variation by tester can be a big factor, so have the same person take the measurements and look for a trend in the results. This technique tends to overestimate body fat for lean individuals and underestimate for obese. Caliper testing needs to be done slowly, carefully and precisely, usually measurements are taken at least three times and averaged for a result.
Bioelectric Impedance - Results are accurate within +/-3% for 82% of the population, and can be off by up to 20% or more for the remaining 18%. Results are inaccurate for small changes and can be affected by hydration, skin temperature, exercise within 12 hours prior, alcohol within 48 hours, food within 4 hours, bladder and bowel content. A body scale once estimated me at 38%, almost 3x the measurement obtained from calipers around the same time.
Circumference Testing - using a few simple measurements, results are accurate within +/-5% for 86% of the population. (There is an online tester available at bodyfat.caryraffle.com, it measured me at almost the same as the calipers and is very easy to use so that you can track your results.)
Ask me - I can usually estimate someone's body fat within a couple of percent, not much less accurate than some of these techniques and a whole lot easier. (Be forewarned, you may have to show me your bare midriff!). If you get a body fat estimate that doesn't make sense - maybe from one of those diet supplement people who set up tables on the streets or at the mall - feel free to contact me for a second opinion.
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