Determining Your Body Type
People come in all shapes, but most can be placed into a particular category of body type, mesomorph, ectomorph, or endomorph. These body types have different characteristics, and you should tailor your workout to whichever you belong. Here's the skinny on the different types of bodies:
A mesomorph (or meso, for short) can be defined in one word: muscular. If you're a meso, your body type is usually the envy of all gym rats because you can increase your muscle size quickly and easily. The well-developed, rectangular shapes of mesomorphs are representative of their thick bones and muscles. (Before you get too excited about this perfect form, keep in mind that being a meso may also mean you have poor flexibility.) If you are a characteristic mesomorph, you have a well-defined chest and shoulders that are both larger and broader than your waistline. Your abdomen is taut and your hips are generally the same width as your shoulders. Your buttocks, thighs, and calves are all toned and defined.
As muscularly defined, athletic-looking individuals, mesomorphs are full of energy, are physically capable of a lot of activity, and tend to be aggressive athletically. (Usually no couch potatoes in this group.) Although mesomorphs generally store fat evenly all over their bodies, they can become overweight if they are sedentary and consume a high-fat and/or high-calorie diet.
Cardiovascular disease can be a primary threat to an overweight meso, so if you fit into that category, your best method of prevention is to maintain a healthy diet and a balanced exercise regime. Remember that your heart is a muscle, too, and the best way to keep it fit is to perform cardiovascular activities.
Craving physical activity and constantly seeking action, the mesomorph makes a great athlete. As a meso, you excel in sports that require great strength, short bursts of energy, and lots of power. Mesos are always popular in gym class and at the playground, because people want mesos on their teams. If you're scouting for body types at your local gym (and who isn't?), you will most likely find your fellow mesos lifting weights and avoiding the cardio equipment like step machines or treadmills.
When you think "mesomorph," think of Sylvester Stallone and Demi Moore.
A one-word description for the ectomorph body type (or ecto, for short) is slim. If you're an ecto, mesomorphs and endomorphs usually don't want to stand next to you. It's not that ectomorphs aren't personable, it's just that you're probably a tall, slender individual who has trouble gaining weight (oh darn!). As you may have guessed, the perfect example of an ecto is a fashion model.
An ectomorph is relatively linear in shape with a delicate build, narrow hips and pelvis, and long arms and legs. As an ecto, your muscle and bone outlines are usually visible (especially if you are an extremely thin ecto), and you normally have less fat and muscle mass than people with other body types. Remember, though, that you probably don't have all the features of a characteristic endomorph, but a blend of features from more than one body type.
Although willowy ectomorphs cover the majority of fashion magazines, nobody's perfect, and ectos do have health concerns. Your primary concern as an ectomorph is your frail stature consisting of small bones and joints that have a tendency to be injured easily during sporting activities.
You probably won't be the star of your football team or the next champion gladiator. Don't worry — your body type is naturally suited to perform wonderfully in endurance activities. Just remember: Balancing your activities is the key. Like mesomorphs, ectos have a tendency to stick with what they do best, and ectos excel at cardiovascular training. You find balance in your workouts when you do both aerobic and muscle training.
When you think "ectomorph," think of Tom Hanks and Courtney Cox.
A one-word description of the endomorph body type (or endo, for short) is curvy. The soft, flowing curves of an endo are similar to that of an hourglass in more ways than one. And wouldn't you know it; the sands of an hourglass tend to settle in its bottom half just like the fat in the body. Comparatively, if you're an endomorph, your body fat may have a tendency to settle into the lower regions of your body, predominantly the lower abdomen, hips, and thighs, rather than being distributed evenly throughout your body. Keep in mind, though, that most endomorphs don't have all the features of characteristic endomorph, but a blend of features from other body types as well.
An endomorph body typically has the capacity for high fat storage, and unfortunately puts fat on pretty easily. Although all body types are susceptible to excessive weight gain, as an endomorph, you are more inclined to become obese. The majority of your body weight is either centered in the middle of your body or in your hip and buttocks regions. A metaphor frequently used to describe an endomorph body type is pear-shaped. A pear resembles a body that has more weight in the lower region, like the hips and thighs, than the upper portion of the body. Structurally, as an endo, you have small to medium bones, limbs that are shorter in relation to your trunk, and musculature that is not well defined.
Now for the good news. From top to bottom, your soft swelling curves create full, rounded shoulders, limbs, and a full trunk. Voluptuous and sensual are the descriptions given to many endomorph females whose soft body contours and deep curves create an allure like that of Marilyn Monroe.
A male endomorph (known as an android) tends to have a different fat distribution pattern from a female endomorph (known as a gynoid). Female endos usually collect fat in their butts, legs, and hips, while most males collect fat in their abdomen (the "spare tire" or "love handle" look). Many research studies have shown that abdominal fat deposition is much more dangerous than fat in the leg and butt area. This is primarily due to the danger of heart disease (see the Heart Disease For Dummies Cheat Sheet) and an increased risk of diabetes, stroke, some cancers, and high blood pressure.
The key to taking the bad with the good and finding happiness with your body type is by balancing all aspects of your life. Your first concern is your health, and your major health concern as an endo is maintaining a healthy body weight. Excessive amounts of body fat can place you in jeopardy of cardiovascular disease. Remember that the risk of such disease is increased if the majority of the fat is carried in the center of your body surrounding your heart. This danger can easily be avoided by maintaining a healthy diet and exercising. The joints of your lower body may be another health concern. Because these joints are already highly susceptible to injury, high-impact sports or activities may be damaging to them, especially if you carry excess body weight.
When you think "endomorph," think of Robin Williams and Oprah Winfrey.
See also:
How a Healthy Diet Helps You Live Well
Maximizing the Healing Effects of Exercise
Using Cardio Exercise for Good Health
The Essentials of Weight Training

Fitness Glossary
aeroboxing, kickboxing
A class that takes the moves of a kickboxer’s training and choreographs them to music.

Fitness Glossary
anaerobic threshold
The point at which your body switches from using oxygen as its primary source of energy to using stored sugar. When you’re in poor physical shape, you hit your anaerobic threshold while exercising at relatively low levels of exercise.

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barbells
The larger weights (for power lifting in a weight training program) that include a long bar with weights added to each end. You need to use both hands to lift a barbell.

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Bioelectrical Impedance Analysis BIA
A method of measuring your body fat in which you lie on your back while a signal travels from an electrode on your foot to an electrode on your hand. The slower the signal, the more fat you have.

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blood pressure
A measurement of how open your blood vessels are. Low numbers mean that your heart doesn’t have to work very hard to pump the blood through your blood vessels.

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body composition
How much of your body is composed of fat and how much is composed of everything else. Your body composition is also called your body-fat percentage.

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body mass index BMI
A way of relating your height and weight to estimate how fat you are. You can use a simple formula to determine your BMI.

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body sculpting
A non-aerobic, muscle-toning class, usually focused on core strength.

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BOSU
A domed, flexible apparatus that helps to improve balance and can be used in a step aerobics exercise routine. BOSU is an acronym for Both Sides Utilized.

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cardio
A term (short for cardiovascular) that is often used interchangeably with aerobic. Aerobic exercise is any repetitive activity that you do long enough and hard enough to challenge your heart and lungs.

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chi
Otherwise known as "life energy," this is the life force that pulses through your body and keeps you vital. Blocked chi can cause sickness or unhappiness.

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circuit training
A fast-paced class or exercise routine in which you do one exercise for 30 seconds to 5 minutes and then move on to another exercise at the next station. Combines cardio exercise with strength training.

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core
The abdomen, obliques, lower back, butt, and so on, that form the midsection. Many forms of exercise focus on strengthening the body's core.

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core conditioning
A non-aerobic, muscle-toning class, usually focused on core strength.

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cross-training
A method of varying your workouts to take your fitness to the next level by adding new forms of training to your current routine.

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Dual-Energy X-ray Absorptiometry DEXA
A method of measuring your body fat that also determines where the fat is located on your body, a more relevant health indicator.

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dumbbells
Smaller weights (for a weight training program) that you can lift with one hand.

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elliptical trainer
The hottest trend in cardio machines, which is part stair-climber, part treadmill, part stationary cycle. Your legs travel in an elongated circular movement, and, on some models, you pump arm poles back and forth for an upper-body workout.

Fitness Glossary
exercise ball
A large plastic ball that is an excellent tool for doing challenging exercises (with or without weights) that require varying forms of strength and control.

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Fartlek
A type of interval training program that doesn't use an exact measure of time or distance. You just do your intervals whenever you feel like it. The term Fartlek means "speed play" in Swedish.

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fitness walking
A faster and more intense walking technique than casual (lifestyle) walking that burns more calories and helps you lose weight. When you fitness walk, you generally move along at a brisk pace of 3.5 to 4.3 miles an hour, covering a mile in 14 to 17 minutes.

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flexibility
The range of motion or distance you can move a joint through. Stretching is the key to maintaining your flexibility.

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free weights
Portable weights used in a strength training program.

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freestyle
The traditional type of swimming movement that uses the front crawl.

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heart rate
The number of times your heart beats per minute.

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high-impact aerobics
A traditional dance-inspired routine that involves jumping or hopping and moves at a slower pace than low-impact aerobics. High/low combines the two types of routines.

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in-line skating; Rollerblading
A type of skating in which you wear skates with urethane wheels that enable you to glide, sprint, curve, turn, and spin.

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interval training
A training technique in which you alternate short, fairly intense spurts of exercise with periods of relatively easy exercise.

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kickboxing; aeroboxing
A class that takes the moves of a kickboxer’s training and choreographs them to music.

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lifestyle walking
A casual walking technique that is low to moderate intensity and relatively slow paced. Most lifestyle walkers walk an average of 2.5 to 3.5 miles per hour, which means that they walk about 1 mile every 17 to 24 minutes.

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low-impact aerobics
A traditional dance-inspired routine in which you always have one foot on the floor — you don’t do any jumping or hopping. High/low combines the two types of routines.

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marathon
An organized 26.2-mile race for runners and walkers.

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maximum heart rate
The maximum number of times your heart should beat in a minute without dangerously overexerting yourself.

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meditation
A mental process involving focused attention, or calm awareness, which is also called mindfulness.

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mountain bike
A fat-tire outdoors bicycle with upright handlebars that is built to withstand rough terrain.

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multi-gym
A home gym contraption that looks like a bunch of health-club weight machines welded to each other.

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muscular failure
In a strength training program, the point at which your last repetition with weights is so difficult that you cannot perform another repetition.

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orthotics
Fitted shoe inserts designed by a podiatrist that correct weight distribution along the foot.

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periodization
A method of organizing a strength training workout program into several periods, each lasting about four weeks. Each phase has a different emphasis.

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Pilates
A form of exercise that emphasizes correct form using your body’s core. Pilates is named after its inventor, Joseph Pilates, who invented the technique for injured dancers.

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plantar fasciitis
An inflammation of the tough fibrous band of tissue that runs the length of the bottom of your foot.

Fitness Glossary
pulse
The number of times your heart beats per minute.

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Qigong
An element of a T'ai Chi practice that covers many different types of movements that involve using and feeling the body's energy.

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recumbent bike
A type of stationary bike with a bucket seat that provides back support so that you pedal straight out in front of you.

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repetition rep
One complete motion of an exercise, often used in reference to strength training.

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RICE
An acronym that stands for Rest, Ice, Compression, and Elevation — common treatment methods prescribed for runners with training injuries.

Fitness Glossary
road bike
The traditional type of outdoor bicycle with curved handlebars that is built for speed.

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rolling stair climber
A cardiovascular machine that resembles a section of a department-store escalator. A set of stairs rotates in a circle so that you climb continuously, but never getting anywhere.

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rowing machine
A cardiovascular machine that increases stamina, upper body endurance, strength, and flexibility by mimicking a rowing motion. Also called a rower.

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set
A group of consecutive repetitions in a strength training program.

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Spinning
A popular group studio cycling program invented by ultra-distance cyclist Johnny G. and licensed by Schwinn, which manufactures the bikes used in these classes.

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stair-climber
A cardiovascular machine that has two foot plates you pump up and down to mimic the action of climbing stairs. Also called a stepper.

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stationary bike
A cardiovascular machine that comes in two styles: upright bikes and recumbent bikes.

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step aerobics
A choreographed routine of stepping up and down on a rectangular, square, or circular platform.

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strength training
A type of workout that uses any combination of weight machines and free weights (dumbbells and barbells) to build muscle strength.

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stride frequency
The number of strides that a runner takes over a certain time period.

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studio cycling
Group exercise classes that are taught on stationary bicycles.

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T'ai Chi
An ancient martial art focusing on smooth, slow movements that cultivate inward focus and free energy flow. T'ai Chi is properly pronounced tie-jee.

Fitness Glossary
target heart-rate zone
A range that is between 50 percent and 85 percent of your maximum heart rate that can tell you what heart rate to aim for during a workout.

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treadmill
A popular choice for a cardiovascular machine in a home gym if you enjoy fitness walking and jogging (or running).

Fitness Glossary
upright bike
The traditional kind of stationary bike, which resembles a regular bicycle.

Fitness Glossary
walk-run
A workout in which you alternate walking and running. By sprinkling running intervals throughout your walking workout, you can spike up exercise intensity and burn more calories.

Fitness Glossary
water aerobics
Aerobics classes that do traditional workouts in waist- to neck-high water in a swimming pool. The resistance of the water makes the workout feel far more intense, while the water cushions you from the impact.

Fitness Glossary
weight machines
Stationary equipment mostly found at gyms that are easy to use and help you to safely and quickly advance through a strength-training workout.

Fitness Glossary
weight-bearing exercise
A type of exercise in which your skeleton is supporting any sort of weight, as it does when you walk, run, or lift weights.

Fitness Glossary
Wushu
The martial art or traditional self-defense activities practiced with or without weapons (includes T'ai Chi).

Fitness Glossary
yin and yang
The terms for opposites that are opposing yet complementary. A concept used throughout all of T’ai Chi and Qigong.

Fitness Glossary
yoga
A series of poses (known as asanas) that you hold from a few seconds to several minutes. The moves — a blend of strength, flexibility, and body-awareness exercises — are intended to promote the union of the mind, body, and spirit.