When you flex or use a muscle, the _____. muscle fibers relax blood flow decreases muscle fibers slide apart myofibrils slide together

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When you flex or use a muscle, the myofibrils slide together.

sujaysen|Points 16540|

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Asked 6/27/2016 10:29:03 AM

Updated 6/27/2016 10:46:56 AM

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This answer has been confirmed as correct and helpful.

Edited by jeifunk [6/27/2016 10:46:55 AM], Confirmed by jeifunk [6/27/2016 10:46:56 AM]

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Match the vocabulary word with the correct definition. 1. obstacles or difficulties that prevent exercise obese 2. conditioning that strengthens the heart, lungs, and blood vessels limiting factors 3. conditioning that strengthens specific muscles physical fitness 4. when a person is very heavy or overweight cardiovascular fitness 5. conditioning that helps the joints move better flexibility 6. a measurement of how healthy a person is in three main areas muscular fitness 7. a plan to ...

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Updated 6/24/2016 1:21:44 PM

1 Answer/Comment

jeifunk

1. limiting factors - obstacles or difficulties that prevent exercise
2. cardiovascular fitness - conditioning that strengthens the heart, lungs, and blood vessels
3. muscular fitness - conditioning that strengthens specific muscles
4. obese- when a person is very heavy or overweight
5. flexibility - conditioning that helps the joints move better
6. physical fitness - a measurement of how healthy a person is in three main areas
7. regular exercise - a plan to exercise every week

Added 6/24/2016 1:21:44 PM

This answer has been confirmed as correct and helpful.

Your mood is improved when you have extra stress hormones in the blood. True False

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Updated 6/24/2016 2:49:58 PM

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jeifunk

Your mood is improved when you have extra stress hormones in the blood. FALSE.

Added 6/24/2016 2:49:58 PM

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Your body stores extra energy as .

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Updated 6/27/2016 1:23:01 PM

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jeifunk

Your body stores extra energy as BODY FAT.

Added 6/27/2016 1:23:01 PM

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You should only hold your breath when you're preparing to exert a force during exercise. True False

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Updated 7/15/2016 12:26:55 PM

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emdjay23

You should only hold your breath when you're preparing to exert a force during exercise. FALSE.

Added 7/15/2016 12:26:55 PM

This answer has been confirmed as correct and helpful.

Confirmed by Andrew. [7/15/2016 3:25:37 PM]

Match the method to increase intensity with its correct exercise category. 1. Add more time to your workout. resistance 2. Flex and relax the muscle. cardiovascular 3. Increase the amount of weight used. flexibility

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Updated 6/28/2016 12:47:58 PM

1 Answer/Comment

jeifunk

1. cardiovascular - Add more time to your workout.
2. flexibility - Flex and relax the muscle.
3. resistance - Increase the amount of weight used.

Added 6/28/2016 12:47:58 PM

This answer has been confirmed as correct and helpful.

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