Abstract
Physiological changes in musculature allow widespread movements in human body. Correspondingly, varying in muscle prototypes characterise direct different training paradigms in therapeutics practice or can governs athletic performances. Mode of muscle contraction type are isometric, concentric or eccentric. Great examples of concentric exercise are walking- up-hill, stair ascent and lifting a dumbbell in bicep curl or pushing a bar up. Examples of eccentric muscle actions are walking - down-hill, satire decent and, isokinetic arm and leg extensions. During isometric muscle contraction the length of muscle does not change while muscle exert force .This type of movement can be seen while a person performs a maximal voluntary contractions (MVCs).Eccentric exercises increasing the concentric and isometric contraction as well. Performing the eccentric muscle contraction in daily life enhance quality of life and lifespan due to increasing muscle strength with low cost of energy consuming and thus it can apply in variety of domains. A simple walking task such as downhill - walking (i.e. 30 min) can provide the aforementioned conditions.
Highlights
Investigations of the skeletal muscle structure and function refer to the the Renaissance period in the history[1]
It is shown that eccentric muscle contraction enhance muscle strength and in part increase the concentric and isometric strength
Exercise - tasks is represented by a potential disruption of homeostasis to the internal and external stimuli of distinct modalities to optimize the functional performances. In principal, such metabolic adjustments can be coordinated by some regulatory mechanisms in metabolic fuels in response to the exercise load[19]. Under this condition, based on metabolic adaption, provision of the rate of adenosine triphosphate (ATP) demand, energy expenditures and contribution of the endogenous carbohydrate (CHO) and lipids are regulated through various types of metabolic pathways in skeletal muscle in response to the different forms of exercise load mechanic[20]
Summary
Investigations of the skeletal muscle structure and function refer to the the Renaissance period in the history[1]. This early observation has become the foundations of the physiology and clinical approaches in modern era[2]. Varying in muscle prototypes characterise the physical strength physiology in human body. Diverse properties of human skeletal muscle can direct different training paradigms in therapeutics practice or can governs athletic performances. In this relation, it is shown that eccentric muscle contraction enhance muscle strength and in part increase the concentric and isometric strength. Further studies on muscle contractions can provide more feature of muscle ability and the movement efficiency, which it produces in sport and medicine setting
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