Question 1

what is a tens machine?

Accepted Answer

Pain Management Unit: "tens" is the acronym for transcputaneous electrical nerve stimulation. A "tens unit" is a pocket size, portable, battery-operated device that sends electrical impulses to certain parts of the body to block pain signals.
The electrical currents produced are mild, but can prevent pain messages from being transmitted to the brain and may raise the level of endorphins.

Question 2

where do i buy an aed machine?

Accepted Answer

Supply companies: Dental or medical supply companies will have aed's or automatic external defibrillators. Make sure that anyone who uses the machine understands what they are doing.

Question 3

are free weights better than machines are?

Accepted Answer

Free weights, machin: Depends - machines give you a much smooth range of motion than free weights. Both produce the same kind of results.

Question 4

do exercise machines simulate real activities?

Accepted Answer

Try to: Exercise machines (not sure exactly which
youre referring to) try to simulate activities
of different sports to some extent
but they can never really do that
the machines try to strengthen the muscles
that are most intrinsic to particular sports 
also plyometrics can be helpful to gear oneself toward a specific sport or activity
unfortunately, no one activity can truly
equal actually playing sport.

Question 5

is it okay to be on a cardio machine for an hour?

Accepted Answer

Yes: Gym equipment can be used for great lengths of time provided your basic health is good and you either set the machine for easy tolerance, or you have spent weeks and months building up your tolerance.

Question 6

what reaction can you expect from a tens machine ?

Accepted Answer

Pain relief: Initially the muscles where the tens unit is attached will feel warm, and if the unit is on too high they may contract.   I it is set correctly you should feel less pain afterwards.

Question 7

what should i do to shed weight using gym machines?

Accepted Answer

TIME AND EFFORT: Losing weight at the gym will depend on the type of machines you are using and the amount of effort exerted or calories burned as a result of such effort. For example, you may use a machine for cardio to burn calories one day and alternate with machines to build muscle the next day. 30 minutes of intense exercise at 4x weekly (or more) is recommended for best results. Combine with a healthy diet.

Question 8

what is a popular machine for a full body work out?

Accepted Answer

Your own body: Is a fantastic machine to use for a full body workout especially in exercise regimens of swimming and yoga. In essence you use everything in those exercises.

Question 9

what are disadvantages of stationary bicycle machines?

Accepted Answer

You pedal: and pedal but they never take you anywhere :)
Stationary bikes are good aerobic exercise and good for your heart. Fantastic for building strength in the thighs 
Disadvantage: they do nothing for the upper body vs say  a stairclimber or Nordic trac.
At the gym I do various upper body exercises and finish with 30 minutes on the stationary bike. Good luck.

Question 10

is there an effective way to measure body fat with machine?

Accepted Answer

Body fat %: Body fat % can be measured by underwater weighig, DEXA (dual x-ray absorptiometry), air displacement or skinfold measurements.

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What is a tens machine?

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Are free weights better than machines are?

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Do exercise machines simulate real activities?

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Is it okay to be on a cardio machine for an hour?

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What reaction can you expect from a tens machine ?

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What should i do to shed weight using gym machines?

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What is a popular machine for a full body work out?

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What are disadvantages of stationary bicycle machines?

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Is there an effective way to measure body fat with machine?

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