Two Types Of Contraction Stress Among College Students Essay examples Essay On Muscle Contraction College Writing Challenges Distractions In College Essay What Is Isokinetic Contraction? Muscle Contractions

1. Two Types Of Contraction
Types of contractions
Isometric: During isometric contractions, muscles stay in a static position and this helps muscular
endurance as you will be working on the muscles endurance on how long it will be able to last
whilst static. For example when you stop halfway through a press–up or if you are doing a plank,
these are good examples as you have to stay in an isolated position. Also another example of this
would be dorsal raises in a static position, when you hold your head up and your legs up when you
are laid on your front. This type of muscle work is easy to undertake but it can cause sharp increases
in blood pressure as the blood flow is increased and it is also rapidly leads to fatigue.
Concentric:
This occurs when a muscle shortens against...show more content...
Most of these contractions you will need specialised equipment to measure the rate of the
consistency of the work out. A practical example of isokinetic contractions would be bench
pressing at a low weight but a high repetition, this would be isokinetic as you would need to do it
at a constant speed so therefore you would need it at a suitable weight to do these contractions
correctly. If you had it at a high weight you would get worn out and start struggling at the end of
the set of repetitions. An everyday example of isokinetic example would be doing your teeth as you
would be doing it at the same pace and contractions and shortenings would take
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2. Stress Among College Students Essay examples
College is a time of extreme stress due to societal and parental pressures. College students have
expectations they have to live up to in order to fulfill and satisfy the needs of both their parents and
society. Stress is expressed through a variety of symptoms that can be hazardous to student's physical
and mental health. With such high expectations to do well during college, students may become
sleep deprived, which impairs mental capacity, but sleep deprivation is only one of a vast array of
symptoms. Stress is present in all aspects of life and there are multiple causes of stress, especially,
during the college period which may present itself through many symptoms, but with stress, there are
also various coping methods to help students...show more content...
According to Lupien, McEwan, Gunnar, and Heim (2009), going off to college involves significant
adjustments to their daily routines; sleeping and eating habits, time–management skills, and stress
levels will be altered in one way or another. First–year students have to adjust to the new school
environment, different social settings, and new schedules, all without the help and guidance from
their parents, who have been there for them for eighteen years. Over 30% of college freshman
report that they feel overwhelmed (Klainberg, Ewing, & Ryan, 2010), where some students even
opt to work as they juggle their class and work schedules. Some students work at a job or study
harder than others, but they are all trying to get degrees so maybe one day they will have
meaningful and significant lives. It is a constant struggle for everyone who is trying desperately to
make him or herself into a success. And every college student wants to be involved in society in a
positive manner, allowing contribution of their ideals and values to others. Stress in college is
caused by many other influencing factors. One of these important factors would have to be the
expectations set by parents. They are normally the reason students are in college, so pleasing them
by getting good grades is almost mandatory. The thought of displeasing out parents can be
detrimental to our thought process; meaning that it most likely would cause impaired
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3. Essay On Muscle Contraction
The Correlation between Eccentric Strength and Agility in Male Field Sport Athletes.
There are three types of muscle contraction, isotonic, isometric and isokinetic. There are two isotonic
contractions, concentric and eccentric. A concentric contraction is a shortening of the muscle fibres,
an example of this being a bicep curl causing a concentric contraction on the biceps brachii causing
the elbow to flex. An eccentric contraction is the opposite of this. During an eccentric contraction as
the muscle contracts the muscle fibres lengthen. An eccentric contraction is important in
deceleration where the quadriceps lengthen to slow down the limb. This type of contraction should
transfer into agility as athletes with greater eccentric strength...show more content...
Agility has been described as "a rapid whole body movement with change of velocity or direction in
response to a stimulus". (Sheppard et al, 2006) This description identifies the inclusion of cognitive
skills in determining agility. This definition applies to open skills only. Open skills cannot be
pre–planned, however closed skills, such as sprinting or previously planned changes of direction,
can be planned in advance. This is very important in every field sport as the ability to react quickly
and allow the movements to match these reactions enhances performance. Many field sports require
straight line running speed but more often than not fast change of direction is a defining factor of an
athlete's performance. Fast change of direction speed and ability to make the right decision in a
game situation makes for an excellent athlete.
Many tests have been designed to test for change of direction speed. The 5–0–5 test is a timed
agility test using rapid 180 degree turns and straight line speed. The Illinois test is a timed agility test
using straight line speed and many multi directional changes. The Zig–zag test is a good indication
of multiple directional changes. It is a timed test where the athlete must round cones set out in a
figure 8.
Subjects used in this study were 10 male soccer players. The agility test that was chosen to best
simulate this sport was the 5–0–5 agility test. This was due to the quick, snappy change
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4. College Writing Challenges
As author Joshua J. Marine said, " Challenges are what makes life interestingНѕ overcoming them is
what makes life meaningful," applied now, are you prepared to overcome the transition from
highВschool to college writing? Yes, that transition is tough, but the experience it will give will be
totally worth it in the end. In college I will have to grow accustomed to writing about new topics in
new styles and explore the different ways I can present my ideas and incorporate them into the
paper I am writing. My vocabulary has to grow, for two reasons, which are to keep up a level of
interest in the readerВwho wants to read the same words over and over again? and to again express
my ideas in the clearest and most effective way.
In the transition...show more content...
One main difference, though, is that in high school there was only one way taught to play out my
argument, in college there are so many different ways I can discuss my perspective. When
argumenting for myself, there should not be a sense of, "Here is my idea, take it or leave it," but
a sense of me wanting to share my knowledge and opinion for the reader to form an opinion of their
own. College writing has been fun, though hard, because of the difficulty I have had changing my
process from topic to essay, to essay to topic. Another contrast in writing would be that the
arguments I discuss have changed to having a more conversational flow, still a hint of debate in
there, but not as forced as you might find in my high school essays where I was just trying to find
enough words to fill out the page, despite my point being proven. This topic, however, on the
transition between high school to college writing I feel more connected to because I have the ability
to make my essay the stand point, not the topic. So far in my barelyВthere college writing
experience I've found there has been much more of an open field, with much more room for
interpretation of the topic I am given, and I
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5. Distractions In College Essay
There are some things within the college lifestyle that are acceptable to a certain extent, but when
taken too far they can lead to be great distractions. The college experience exposes incoming students
to many distractions, like the cost of financing going toward their education to the challenges that
come with carving out an adult identity. Living away from home for the first time also forces
students to confront issues that pose numerous distractions from your grades dropping, not doing
your homework, skipping class, causing conflicts with roommates, and setting ground rules for
developing positive personal and sexual relationships. Almost everyone has experienced peer
pressure before, either positive or negative. Peer pressure is when...show more content...
Choosing a good environment is a good step towards monitoring possible distractions. Distractions
come in all shapes, sizes and sounds. External distractions include things like noise, people talking,
TV, music, phone alerts, and anything else that diverts your attention from the task at hand. When it
comes to studying, multitasking is ineffective. While it may seem like multitasking would be a
good thing, research has shown that people who are multitasking are not doing two things at the
same time. "People are instead switching back and forth quickly between tasks. The result of this
movement is that performance suffers on both tasks, and people who are multitasking are less likely
to remember information later", (Dzubak, 2008). There may be other areas of our lives where
multi–tasking is useful but studying and problem solving require deep concentration and
interruptions make it harder to focus and decrease your chances of recalling information later. Brad
Zomick has steps for time management and finding the right way to study by, "Evaluate your study
locations, identify your distractions, make a list, set up your study time so you minimize internal
distractions, schedule breaks, putting away obvious distractions, and use rewards to motivate
yourself throughout your study period"
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6. What Is Isokinetic Contraction?
Isokinetic contraction can be defined as a muscular contraction where the limb remains in a constant
velocity around a joint. It can be used to assess force output (torque) with isolated joint movements,
which is the most common measurement obtained. A way isokinetic measurements can be collected
is through the utilization of an isokinetic dynamometer. Isokinetic dynamometers are measurement
tools that physical therapists can use for testing purposes as well as training to improve muscular
performance in dynamic conditions. The velocities can be adjusted to reproduce demands of various
activities to enhance training effects (Baltzopoulos & Brodie, 1989). Results can be utilized as an
objective strength measure throughout an individual's rehabilitation
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7. Muscle Contractions
Muscles contract when they are stimulated; when a muscle contracts and produces movement this is
called an isotonic contraction. An isotonic contraction can be either concentric or eccentric.
Concentric contractions are a type of muscle contraction that shortens the muscle as the fibres
contract and eccentric contractions are a type of muscle contraction where the muscles lengthen as
the fibres contract.
When the arm is bent from a straightened position the biceps brachii muscle is working
concentrically. The bicep muscles are shortening to move the bones of the forearm.
As the arm is straightened from a bent position the biceps brachii muscle contracts eccentrically to
control that movement.
Muscle contraction occurs when the muscle proteins
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