1 / 9

Types of Muscle Contractions.

Types of Muscle Contractions. Providing different ways of Strength Training. . ISOTONIC. Muscle length shortens under tension ie concentric. Muscle changes from “long +Thin” to “Short + Fat”. (Press ups or bench pressing using weights).

fabienne
Télécharger la présentation

Types of Muscle Contractions.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Types of Muscle Contractions. Providing different ways of Strength Training.

  2. ISOTONIC. • Muscle length shortens under tension ie concentric. Muscle changes from “long +Thin” to “Short + Fat”. (Press ups or bench pressing using weights).

  3. All Skeletal muscle have 2 points of attachment – point of origin • and point of insertion. • Point of origin is fixed does not move unlike point of insertion. • e.g point of origin bicep – shoulder – point of insertion elbow. • Point of origin hamstring – hip – point of insertion knee. • N.B in all isotonic contractions points of insertion moves closer to • point of origin. • e.g Press ups, dips, pull ups. etc.

  4. Point of Origin (Fixed) Point of Insertion

  5. ISOMETRIC:- • Muscle length remains the same whilst under tension. i.e. no shortening of the muscle. e.g tug of war or scrummaging in rugby

  6. Strength tests in competitions such as world strongest • man e.g holding car batteries in front of you at arms • length or bundles of bananas in each arm. • Disadvantages: • Increase blood pressure in head (dangerous!!) • Not “specific” to many sporting events since there no • muscle movement involved. • Advantages: • * A proven way of increasing muscle size quickly.

  7. ISOKINETIC • Muscle tension remains constant (the same) throughout the full range of movement. i.e Outer – mid + inner range Outer mid inner range Disadvantages: developed only available on hitech expensive machines only available Sky T.V. gyms or sports clubs.

More Related