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  2. Physiological effects in space - Wikipedia

    en.wikipedia.org/wiki/Physiological_effects_in_space

    Studies conducted at JSC by the Exercise Physiology Laboratory showed that two-legged muscle power declines considerably more than can be explained by the loss in muscle mass alone. Additionally, the loss of explosive leg power was associated with a substantial reduction in the electromyography (EMG) activity of the m. rectus femoris, m. vastus ...

  3. Sliding filament theory - Wikipedia

    en.wikipedia.org/wiki/Sliding_filament_theory

    The sliding filament theory explains the mechanism of muscle contraction based on muscle proteins that slide past each other to generate movement. [1] According to the sliding filament theory, the myosin ( thick filaments ) of muscle fibers slide past the actin ( thin filaments ) during muscle contraction, while the two groups of filaments ...

  4. Exercise physiology - Wikipedia

    en.wikipedia.org/wiki/Exercise_physiology

    Exercise physiology is the physiology of physical exercise. It is one of the allied health professions , and involves the study of the acute responses and chronic adaptations to exercise. Exercise physiologists are the highest qualified exercise professionals and utilise education, lifestyle intervention and specific forms of exercise to ...

  5. Muscular system - Wikipedia

    en.wikipedia.org/wiki/Muscular_system

    Three distinct types of muscle (L to R): Smooth (non-striated) muscle in internal organs, cardiac or heart muscle, and skeletal muscle. There are three distinct types of muscle: skeletal muscle, cardiac or heart muscle, and smooth (non-striated) muscle. Muscles provide strength, balance, posture, movement, and heat for the body to keep warm. [3]

  6. Muscle - Wikipedia

    en.wikipedia.org/wiki/Muscle

    Muscle is a soft tissue, one of the four basic types of animal tissue. Muscle tissue gives skeletal muscles the ability to contract. Muscle is formed during embryonic development, in a process known as myogenesis. Muscle tissue contains special contractile proteins called actin and myosin which interact to cause movement.

  7. Muscle tone - Wikipedia

    en.wikipedia.org/wiki/Muscle_tone

    In physiology, medicine, and anatomy, muscle tone (residual muscle tension or tonus) is the continuous and passive partial contraction of the muscles, or the muscle's resistance to passive stretch during resting state. [1] [2] It helps to maintain posture and declines during REM sleep. [3]

  8. Physiology - Wikipedia

    en.wikipedia.org/wiki/Physiology

    Physiology (/ ˌ f ɪ z i ˈ ɒ l ə dʒ i /; from Ancient Greek φύσις (phúsis) 'nature, origin' and -λογία () 'study of') [1] is the scientific study of functions and mechanisms in a living system.

  9. Wikipedia:Free English newspaper sources - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Free_English...

    Elephind – text searchable free database with access to over 200 million items from 4,345 newspaper titles. Florida Digital Newspaper Collection; Georgia (US State) Historic Newspapers - provides 984 newspaper titles from 1763 to the present day. Google News Archive — an unsupported (abandoned) database. Most useful to find a specific date ...