Handleiding Bowflex Xtreme2 SE - after 2013 (pagina 15 van 76) (Engels)

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Owner’s Manual

Your body will do what you train it to do. That’s why it’s important to define your goals and focus them. Here are some

fitness components that will help you define your goals and choose your fitness program.

Muscle Strength is the maximum force that you can

exert against resistance at one time. Your muscle

strength comes into play when you pick up a heavy bag

of groceries or lift a small child. It is developed when a

localized muscle is worked both positively (concentric)

and negatively (eccentric) at a resistance – great enough

so you can perform only five to eight repetitions of the

exercise before the muscle fails. Each set of repetitions

is followed by a rest interval that typically runs three

times longer than the set. Later, between exercise

sessions, the muscle overcompensates for the stress

and usually increases in both strength and size.

Muscle Endurance is the ability to perform repeated

contractions. It comes into play when you cross-country

ski or work on your feet all day. Endurance training

addresses the slow twitch, endurance muscle fibers,

which depend on oxygen for energy. To develop muscle

endurance, use low resistance and high repetitions –

about 15-20 repetitions in each set, three sets to each

exercise, working the muscle only to fatigue.

Muscle Power is the combination of strength and speed

of the muscular contraction. This is often misinterpreted

as A) being directly associated with certain skill or

sport and/or B) meaning that you must move fast. Load

is actually a more important factor than speed when

attempting to improve power. When training to achieve

muscular power, pick a resistance that fatigues you

in the 3-5 repetition range. When performing these

reps, it is more important to think of contracting the

muscles faster rather than attempting to move faster.

Performing sport simulation exercises usually results

in a deterioration of the motor pattern or skill. The bio-

mechanically sound method of improving power in

your sport is to train for power using the correct joint

movements, as described in this manual. Then practice

the skill associated with your sport, learning to apply this

newly achieved power.

Body Composition is the ratio of fat weight (fat) to

lean weight (muscles, bones and tissue). As you age, the

ratio shifts. The fat weight increases and the lean weight

decreases. Training for muscle strength will generally

increase muscle size and aerobic conditioning will

help burn extra calories. Performing these two forms of

exercise, either at different times or together, will create

the greatest changes in body fat weight.

Balanced Strength and alignment are the result of

equal strength developed in all parts of the body. It

comes into play in your standing and sitting posture, and

in your ability to perform just about any activity safely

and effectively. An over-development of the back will

round the shoulders; weak or stretched abdominals

can cause lower back pain. You want a balance of

muscle strength in front and back. In addition, you need

a balance of strength between your middle, lower and

upper body.

Flexibility is the ability of a muscle or group of muscles

to move the joint through a full range of motion. Flexibility

comes into play when you execute an overhand serve or

stretch for the top shelf in the kitchen. It is a cooperative

movement of opposite muscle groups. When a muscle

contracts, its opposite muscle group must relax for the

action to occur. Increased flexibility means an increased

range of motion, made possible by this simultaneous

contracting and relaxing. Good flexibility is important

in protecting the body from injury and can be achieved

through the balanced strength training programs that are

included in this manual.

Cardiovascular Endurance is the ability of the heart

and lungs to supply oxygen and nutrients to exercising

muscles over an extended period of time. It comes into

play when you jog a mile or ride a bike. It is a critical

component of overall fitness and health. You may want to

design your own personal program specifically geared to

your goals and lifestyle. Designing a program is easy, as

long as you follow the below guidelines.

Define Your Goals

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