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  2. Hypnic jerk - Wikipedia

    en.wikipedia.org/wiki/Hypnic_jerk

    A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.

  3. What Muscles Are Used in Jumping Jacks? Trainers Break It Down

    www.aol.com/lifestyle/muscles-used-jumping-jacks...

    "The deltoids are located at the top of the arm and cover the shoulder joint," Julom explains. "When doing jumping jacks, the arms move up and down, engaging the deltoids and building strength and ...

  4. Rebound exercise - Wikipedia

    en.wikipedia.org/wiki/Rebound_exercise

    A pair of jumpers A mini-trampoline.. Rebound exercise (or “rebounding”) is a type of elastically leveraged low-impact exercise usually performed on a device known as a rebounder—sometimes called a "mini-trampoline" or "fitness trampoline"—which is directly descended from regular sports or athletic trampolines.

  5. List of human positions - Wikipedia

    en.wikipedia.org/wiki/List_of_human_positions

    Log (15%) – lying on one's side with the arms down the side. Yearner (13%) – sleeping on one's side with the arms in front. Soldier (8%) – on one's back with the arms pinned to the sides. Freefall (7%) – on one's front with the arms around the pillow and the head tilted to one side.

  6. Here’s why everyone’s jumping on the trampoline fitness craze ...

    www.aol.com/lifestyle/why-everyone-jumping...

    This 36-inch trampoline uses 30 tension bands to provide a safe, supportive and whisper-quiet foundation for your workout. Burn calories, boost your heart health and increase muscle tone — this ...

  7. Camptocormia - Wikipedia

    en.wikipedia.org/wiki/Camptocormia

    A clinical photograph showing a patient with the flexed posture. It can be abated when lying down. [1]Camptocormia, also known as bent spine syndrome (BSS), is a symptom of a multitude of diseases that is most commonly seen in the elderly.

  8. Why Arm Holdings Stock Is Jumping Today

    www.aol.com/why-arm-holdings-stock-jumping...

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  9. Kip-up - Wikipedia

    en.wikipedia.org/wiki/Kip-up

    Video of a kip-up A nip-up performed during an acro dance routine Not to be confused with the juggling of a football known as kick-ups . A kip-up or kick-up (also called a rising handspring , Chinese get up , kick-to-stand , nip-up , [ 1 ] flip-up , or carp skip-up ) is an acrobatic move in which a person transitions from a supine , and less ...