Muscle and joint actions both affect the performance of a discus-athlete. Various types of joint actions and muscular actions can take place once when the movement is executed by the athlete. As an example‚ a discus-thrower usually activates the horizontal abduction and the horizontal adduction during the preparation or execution phases of his/her throw. The ground contact of the discus-thrower is very important as it keeps the thrower’s center of gravity station within his/her strongest point of
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Moving and Handling (HSC 2028) Heather Buckley Gluteus maximus is the large muscle in the each of the buttock which provides power when straightening the hips. Quadriceps is the large muscle group on front of the thigh which straightens the knee. Hamstrings are the large muscle group which is on the back of the thigh which bends the knee. Gastronomies are the calf muscle which lifts the heel and straightens the ankle. Latissimus dorsi is a large muscle on either side of the spine which supports
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Her x-ray shows the following: After the physician reviews the x-ray‚ a directed physical examination should test for the most likely complication of the fracture by evaluating: A. Elbow flexion B. Finger extension C. Upper extremity abduction D. Weakening of the grip and clumsiness E. Wrist flexion Choice “B” is the best answer. The nerve that was most likely injured in this patient is the
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The origins and history of wrestling date back as far as 15‚000 years with depictions of wrestling found in cave drawings in France. Wrestling is one of the oldest historical sports rivaled only by track and field‚ and has been seen in ancient literature and games of Greece and early Egypt. The most notable influence of wrestling comes from the Olympics‚ where it was introduced in 708BC . There are many forms of wrestling including Greco-Roman‚ Freestyle‚ Folk style‚ and Catch wrestling; all of which
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Cantilever Flexion Cherno Okafor Mr. Ebrahimi SPH4U7 October 21st‚ 2012 Introduction Purpose: The purpose of this Physics Lab is to investigate what factors determine the amount of flexion of the cantilever. Hence‚ the objective is to establish a relationship between the length of a cantilever‚ which may give some insight into the physics of cantilevers. Hypothesis: If one increases the length of a cantilever‚ one would expect there to be an increase in deflection/flexion of the cantilever
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t Actions * Flexion: decrease in joint angle from anatomical postion (bend elbow‚ flexing forearm) * Extension: return to anatomical position from flexion * Abduction: away from body * Adduction: return of body to anatomical position * Rotation: circular * Lateral: anterior surface to lateral side * Medial: anterior surface to medial side * Circumduction: conical shape * Protraction: horizontal movement in anterior direction (jaw forward) * Retraction:
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Torsion- twisting of the embryo along the left-right axis (similar to the twist of the body when a golfer swings at the ball). MOST prominent in the 48-hour chick embryo Flexion- bending of the embryo along the anterior-posterior axis. In amniotes the tip of the head bends towards the heart. Types of flexion: cranial flexion‚ cervical flexion‚ pontine flexure‚ dorsal flexure‚ caudal flexure. ^Cervical flexure- ventral bend in embryo at transition between myelencephalon and spinal cord ^Dosal Flexure-
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sport is when catching a cricket ball. Joint Type | Movement at joint | Examples | Structure | Comparison | Hinge | Flexion/Extension | Elbow/Knee | Hinge joint | The hinge joint is different to the pivot joint as it can do flexion and extension whereas the pivot can do rotation. | Pivot | Rotation of one bone around another | Top of the
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humerus: flexion‚ medial rotation‚ abduction biceps brachii short head coracoid process of scapula long head supraglenoid tubercle of scapula radial tuberosity‚ bicipital aponerousis humerus: flexion forearm: supination‚ flexion brachialis (in b/w) anterior distal half of humerus tuberosity of ulna forearm: flexion brachioradialis (long‚ to radius) lateral supracondylar ridge of humerus styloid process of radius forearm: flexion triceps brachii
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Types of joints: Ball-and-socket joint: Consists of a bone with a globular or slightly egg-shaped head that articulates with the cup-shaped cavity of another bone. Such a joint allows a wider range of motion than does any other kind‚ permitting movements in all planes‚ as well as rotational movement around a central axis. The hip and shoulder contain joints of this type. Condyloid joint: The ovoid condyle of one bone fits into the elliptical cavity of another bone‚ as in the joints between the
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