Muscles is an important part of our body. Before getting into a detailed discussion about the interesting facts about muscles and its related terms, let us know what a muscle is. A muscle is basically a collection of numerous fibre tissues, known as muscle fibres, which are being held together in the form of a bundle to form a single muscle. Muscles are joined to particular structures called joints, which can be moved only with the help of these muscles. This can be simply done by ‘shortening and pulling of one end of the muscle to the other end’. The electrical impulses that are being sent from the human brain to each single muscle fibre through the nerves are solely responsible for the activation of the muscle fibres. These impulses so produces aid in the working of the muscles for moving the joints by shortening and voluntary contractions.in case of an illness or injury, it may happen at times that a muscle doesn’t work, this may cause each muscle fibre to get thinner, resulting the whole muscle to get weak. Power and endurance are the two main terms that go hand in hand with the muscles.
Interesting facts about muscles have revealed that activities like loading of heavy suitcase onto a roof rack or putting them into a shelf at the top requires some strenuous power to lift them up. We often require the power to perform movements against resistance. Similar activities that demand application of human power are movements of limbs, walking up the staircase, getting up from a chair and even lifting of heavy shopping bags.
The damage of the muscles causes the muscle fibres to tear along with the worn out of the connective tissue around the muscle. Due to the damage of the fibres, seepage of fluid occurs out of the torn fibres resulting in localised swelling.
The free muscle fibres that can glide slightly one on the other get stuck together and even the slightest contraction in the muscle tend to irritate the fibres.it must be noted that the muscles do not stick completely along the whole length but only at the ends.
Now, after all; health experts involved in saying Interesting facts about muscles recommended we must come across the term ‘muscle endurance’.it is nothing but a feature of the muscle which permits the work of the muscles to happen at a lower level and even for long durations. Thus, while we need to maintain certain postures for a period of time, the muscles that help us perform that need to have some kind of endurance in it. Putting it in one sentence, one can define muscle endurance as the ability of the muscle fibres to ‘perform cyclic dynamic contractions over an extended period of time’. These contractions that the muscles tend to perform are basically a response against some particular resistance.
Mainly, there are three forms of muscular endurances. They are:
- Repetitive dynamic contraction: examples of some activities that fall under these category are rowing of boat, bicycling, running, etc.
- Continuous tension: examples of activities falling under this category are yoga and meditation
- Prolonged intense contraction: examples of activities that demands this kind of endurance is playing football or basketball, etc.
On the basis of the speed of contraction of muscles and the rate of muscle fatigue, the two basic forms that the muscles fibres are classified into are the ‘fast twitch’ and the ‘slow twitch’. The fast twitch muscles have their contraction speed quite higher than the slow twitch muscles. The fast twitch ones are relatively less resistant to the fatigue than the slow twitch ones. The slow twitch muscles are solely responsible in acquiring the muscle endurance.
A balanced muscular endurance is required by the athletes as otherwise they tend to get exhausted at the middle of the game. The legs of the athletes need muscular endurance in order to get a sustenance of the direction changes, quick acceleration, quick stops, hops, jumps, recovery and so on. Few training programs help to acquire the aerobic hold. Muscle endurance is enhanced by activities like jogging, walking, swimming and even bicycling. Also, muscle endurance is acquired by the utilization of aerobics, which in turn enriches the aerobic capacity within oneself. This even helps in the improvising of the cardio-vascular system, muscular strength and hence help in the maintenance of a perfect, fit and strong body.