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جمعه 23 دی 1390 :: 02:20 ::  نویسنده : بهلول

BLOOD VESSELS, CHAMBERS & VALVES

 

CIRCULATION OF BLOOD

 

WORKSHEET

 

 

When you think about how blood circulates around the body you should think about the blood vessels, chambers and valves which operate in the process as blood circulates around the body.

 

It may help you to visualise a drop’ of blood starting at a specific point in the heart and making one complete cycle of the body and arriving back where it began. This complete cycle takes approximately 30 seconds.

 

 

BLOOD VESSELS

 

·        A0RTA

·        PULMONARY ARTERY

·        PULMONARY VEIN

·        CORONARY ARTERIES

·        SUPERIOR VENA CAVA

·        INFERIOR VENA CAVA

 

 

CHAMBERS OF THE HEART

 

·        RIGHT ATRIUM

·        RIGHT VENTRICLE

·        LEFT ATRIUM

·        LEFT VENTRICLE

 

 

VALVES IN THE HEART

 

·        TRICUSPID VALVE

·        PULMONARY VALVE

·        BICUSPID VALVE (MITRAL VALVE)

·        AORTIC VALVE

 

 

The heart has been described as being a pump, when in fact it is actually a double pump. The explanation being that the right handside of the heart pumps deoxygenated blood to the lungs via the pulmonary artery (please note deoxygenated blood in an artery) artery and is referred to as Pulmonary Circulation.

 

The left handside of the heart brings oxygenated blood back from the lungs via the pulmonary vein (please note oxygenated blood in a vein) and pumps the blood via the aorta around the body to the ‘body tissues’ and is called Systemic Circulation

REARRANGE THE FOLLOWING PHRASES TO SHOW BLOOD TRAVELLING THROUGH ONE CYCLE OF THE BODY CIRCULATORY SYSTEM

Make the assumption that the drop of blood starts its journey in the ‘Right Atrium’

 

1.      Enters the aorta.

2.      Enters Left Ventricle

3.      Enters the Lungs

4.      Travels back via the superior/inferior Vena Cava

5.      Passes through the Tricuspid Valve

6.      Finishes journey back at the Right Atrium

7.      Enters Right Ventricle

8.      Passes through the Bicuspid valve (Mitral Valve)

9.      Enters the Pulmonary Artery

10.  Enters the Left Atrium

11.  Passes through the Aortic Valve

12.  After leaving Aorta travels to all organs and tissues of the body.

13.  Passes through the Pulmonary Valve

14.  Enters Right Atrium


THE CORRECT SEQUENCE OF BLOOD CIRCULATION DURING ONE COMPLETE CYCLE OF THE BODY

 

1.      Enters Right Atrium

2.      Passes through the Tricuspid Valve

3.      Enters Right Ventricle

4.      Passes through the Pulmonary Valve

5.      Enters the Pulmonary Artery

6.      Enters the Lungs

7.      Enters the Left Atrium

8.      Passes through the Bicuspid Valve (Mitral Valve)

9.      Enters Left Ventricle

10.  Passes through the Aortic Valve

11.  Enters the aorta.

12.  After leaving Aorta travels to all organs and tissues of the body.

13.  Travels back via the superior/inferior Vena Cava

14.  Finishes journey back at the Right Atrium


دوشنبه 28 آذر 1390 :: 16:06 ::  نویسنده : بهلول

Warmup Recovery Circuit    
  
 
Drill Objective(s)
Increase Core Temperature.
Teamwork and communication.
Agility and Quickness.
 
Drill No: WU20
Age: 12-Adult
No Players: 2+
Difficulty: Easy
Area/Time: Full Pitch (10mins)
 
Diagram 1

 
ORGANISATION:
Arrange the following stations using the markings of a standard size football pitch.
INSTRUCTIONS:
Stagger players all around the circuit to avoid lines and players backing up. Perform 3 laps. Players perform 6 of the various static stretches lsited below during the static stretches sections:

1) Groin Twists - (Ins and Outs)
2) Calf Stretches (Bouncing on Tip toes, don't let heels touch the ground)
3) Lunges
4) Side stepping
5) Side Lunges
6) Backpeddles
7) Quickfeet (As many touches on the ground as possible, fast feet)
8) High Knees
9) Acceleration Runs (Building up acceleration slowly through the 10yrds, i.e. - 10%-100%).
 
SCORING:
None.
KEY COACHING POINTS:
Quickness and Agility.
Teamwork and communication. The dragon parts (players) have to work together to protect the tail and also advance in the correct direction to attack other dragons.
Emphasize good team work and support.
 
 
PROGRESSIONS:
None.
 
 
VARIATIONS:
Alter the intensities to turn this circuit into a recovery circuit following practices.
Alter the jogging sections to cruises or even sprints to turn this into a fitness activity.
 

جمعه 11 آذر 1390 :: 03:47 ::  نویسنده : بهلول

1- ترم اول کالج تمام شد. آناتومی و فیزیولوژی را باید re-assessment 

research ام درباره ی آنالیز تمام گلهای جام جهانی بود و تحقیق و تطبیق و تفاوت تعداد پاسها و طول پاسها و زمان بازی و رتبه تیم ها و انحصارات! بازیکنان و covering area !!!! سه ماه شبانه روز طول کشید تا حاصلش شد 300 کلمه مفید !

2-  روانشناسی ورزشی را شروع کرده ایم. چقدر جالبه !

مثلا دلایل اینکه چطور سر آلکس فرگوسن با تیمی گمنام مثل آبردین / 1981 قهرمان اروپا شده و رئال را در فینال 2-1 برده !!!

3- موبایلم شکسته n95 8 gigs ؛ پول ندارم برم آیفون فور اس! بخرم! سیم کارت ام هم لاک شد . نور علی نور!

4- موسیقی فعلا حرام و تعطیل !! خانه ام شده هیئت عزاداران شمیرانات ! همه اش نوحه ی لری و سلیم موذن زاده و دیگر مداحان ؛ همسایه ها عاصی شده اند!!

5- " حضرت عشق " آجیل و لواشک و گردو و سوهان عسلی دست ساز! مفصلی فرستاده !! 

نوش جان می کنم و عطر وطن را استشمام.......


6- گور پدر هر چی سیاست و کنسول گری و بمب اتم و سفارت و استکبار و خودجوش و !!!!!! مرگ بر جنگ ....... هنوز یاد اون دردهای 8 سال مقدس لعنتی ؛ تنم را می لرزاند. آقا ما ملت بدبخت ایران ؛ اگه دلمان نه انرژی هسته ایی بخواهد و نه سربلندی امت همیشه در صحنه را و نه دلسوزی امریکا و انگلیس برای حقوق بشر کوفتی پایمال شده ی مان و نه دموکراسی و مدرنیزاسیون را 

 ؛ کی را باید در این دنیا ببینیم ؟

ای لعنت به تمام تریبونهای شرق و غرب و وسط !!


7- فردا فستیوال فوتبال مدارس ابتدایی است. مربی ها باید با لباس کامل ورزشی و کلاه سانتا = پاپا نوئل برویم سر زمین !!! فک کنید قیافه ی منو با ریش نزده بخاطر محرم و کلاه قرمز!

8- دیروز بارانی بارید وسط تمرین بچه ها , طوفان نوح !! 

105 تا بچه زیر 8 تا 14 سال در کلاسم دارم . 18 ملیت مختلف

12 زبان مختلف

9 مذهب متفاوت و هزاران فرهنگ جورواجور

اومدم بخاطر health & safety تعطیل کنم . دو سه تا به گریه افتادند که : کجا برویم ؟ تنها دلخوشی مان همین تمرین و بازی با توپ است.

یاد زنگ ورزش های خودمون تو زمستون افتادم و بداخلاقی های معلم ها.

ادامه دادیم زیر اون بمباران آبکی خداوند ؛ انگار شینلگ گرفته بود روی سرمان از آسمانش! تا ساعت 9 شب دویدند و فریاد زدند و بازی کردند!


یکشنبه 6 آذر 1390 :: 18:06 ::  نویسنده : بهلول

              
Doing a literature review    
This Advice Sheet introduces you to the basics of compiling a 
Literature review.
What is a literature review?
• It is a critical and evaluative account of what has been 
published on a chosen research topic.
• Its purpose is to summarise, synthesise and analyse the arguments of others.  
(It is not an academic research paper, the main purpose of which is to support your own 
argument.)
• You should describe and analyse the knowledge that exists and
what gaps occur in research related to your field of interest.  (This 
should clarify the relationship between your own research and the work 
that has previously been done.)
• It should reveal similarities and differences, consistencies and 
inconsistencies and controversies in previous research.
What it is not
It is not primarily an argument for the importance of what it is you are researching. While it is necessary 
to explain what is the primary purpose of your research, the reader of a literature review will assume 
that the need for undertaking the research has already been established.
It is not a descriptive list of papers or summaries. You must not just list your sources and describe them 
in detail one at a time.
A literature review is organised around ideas, not the sources themselves as an annotated bibliography 
would be organised. You should assess previous studies and discuss their strengths and weaknesses. 
You also have to think about which themes and issues your sources have in common.
Who should you ask?
It may not be possible to survey every person who could provide a useful response to your questionnaire.  
In such cases, you will need to choose a sample from your population to survey.
What is a literature review? 1
What it is not …. 1
Approaches needed …. 1
Approaching your review …. 2
Writing the review …. 3
Further reading …. 4
The approaches needed for different disciplines
It is important to note that certain disciplines will have a different approach to literature reviews. Your 
department may have particular preferences so you should always make sure that you have consulted 
your supervisor before you start work.
• Science and engineering have fairly rigid conventions for reporting on research. They can have 
a specific structure e.g. “introduction”, “background” followed by “methodology” “results” and 
“discussion”. This is known as an explicit literature review.
• Social science literature reviews often follow a similar pattern to science and engineering 
literature reviews although some social sciences e.g. anthropology may have a less explicit 
approach.     2
Approaching your literature review
There are five stages to your literature review:
1. Find models
2. Problem formulation – which topic is under consideration and what are the constituent issues?
3. Literature search
4. Evaluation of findings
5. Analysis and interpretation of literature
1 Find models
Look for other literature reviews in your discipline and read them to get an idea of the types of themes 
you might want to include in your research or ways in which you could organise your final review.
You can do a database search to find models  – put the words “literature review” along with your 
keywords to retrieve references to articles of this type
2 Problem formulation
You should try to construct a working statement that will form the basis of your literature review. The 
statement does not have to argue for a position or an opinion. It will rather argue for a particular slant 
on the material.
3 Literature search 
The literature search will help you identify scope and key issues. Efficient searching will help you:
• Identify which authors are interested in your specialism and those who take a generalist’s 
view.
• Trace authors who are prominent in your subject and who can help you justify the importance 
of your research idea.
• Include the authors would or could contradict your ideas.
4 Evaluation of findings
Reading research articles is different from other types of reading. You must develop a good 
understanding of the research literature to be able to write a competent literature review. 
Understanding the literature requires you to read, re-read and assimilate complex ideas.
Read the easier articles first
Difficult or badly written articles will probably be easier to understand 
if you read them last when you have gained familiarity with your 
subject.
• Political science literature reviews may have to include a section which  establishes basic 
premises and has definitions of certain terms and models.
• Literary and historical literature reviews do not have a single convention. In contemporary 
literary studies an “explicit” chapter may not be needed. The researcher may be taking a new 
theoretical approach to material which has already been studied before.     3
Scan the article
For the preliminary scan, don’t read the articles closely so as to avoid getting mired in detail.
It may help to note down the key points for each article.
When reading you should keep the following in mind:
• What are the authors’ academic reputation?
• Identify the research question and the specific hypotheses, the findings and how the 
findings were interpreted.
• Are the authors objective or does their work appear to have a particular bias?
• Is contrary data considered and discussed or is it ignored?
5 Analysis and interpretation of the literature
After you have an idea of the main ideas in each article, identify the precise methods used and the 
theories tested. When you are comparing the work of a number of researchers some of whom have a 
different take on the problems of the research question, you will need to have an in-depth
understanding of their work.
A close reading may reveal differences in theoretical outlook.
How do different authors cite the same work?. One author may explain the method of an earlier 
study, describe its results in great detail and cite it repeatedly while Another may give it only a 
passing reference.
Allow enough time
Before you can write about your research project you must have evaluated the existing literature 
properly so do allow yourself sufficient time to do this.
Writing the Literature Review
Number of articles reviewed
Published review articles may contain more than a hundred studies. 
You may wish to consult your supervisor about how far you should go 
back in time and how many articles you want to include.
Organisation
There are a number of different approaches to organising a literature 
review so again do consult your supervisor before beginning the work.
You could use the following method:
• Introduce your research question  (what it is, why it is worth 
examining)
• Narrow research question to the studies discussed
• Briefly outline the organisation of the paper. If there is a major controversy, describe it and 
explain that you will present research supporting one side and then the other.
• Or, if three methodologies have been used to address a question, briefly describe them and 
say that you will compare the results obtained by the three methods
• Describe studies in detail
• Compare and evaluate studies
• Discuss the implications of the studies and how you intend to build on them
Conclusion/Recommendations
Discuss what you have learned from reviewing literature so far and where the research lead? After 
reading your review your reader should be convinced that your proposed research project will play a 
necessary role in furthering knowledge in your field.     4
Further reading
A link to books on literature searching can be found at:-
http://www.lboro.ac.uk/library/skills/literature-search.html
You may also wish to consult your Academic Librarian if you are having trouble locating literature on 
your topic.  See http://www.lboro.ac.uk/library/about/StaffList.html for details.



ادامه مطلب ...
سه شنبه 26 مهر 1390 :: 16:24 ::  نویسنده : بهلول

Dynamic Warm Up Routines for Sports

by Adrian Faccioni

Date Released : 03 Apr 2001

Whilst the warm up for participation in any sporting or exercise activity is accepted as being essential for

minimising injuries and improving performance, the methods by which many sports attempt to achieve this are less

than ideal.

The warm up method used by many dynamic sports (both team and individual) usually includes an initial jog

around the field or court, followed by 10- 15 minutes of static stretching. This is then followed by a few drills, and

the athletes then begin their training session or game. Whilst the basis behind this methods may appear to be the

sound application of current training principles, a closer analysis reveals major limitations with this method of

preparing an athlete for a dynamic sport activity.

The main physiological reason for a warm up include:

To increase core temperature (an increase in rectal temperature of a least one to two degree Celsius

appears to be sufficient) (deVries 1980)

To increase heart rate and blood flow to skeletal tissues, (Karvonen 1978) which improves the efficiency

of oxygen uptake and transport (deVries 1980), carbon dioxide removal (Karvonen 1978), and removal

and breakdown of anaerobic byproducts (lactate) (Karvonen 1978)

To increase the activation of the Central Nervous System (therefore increasing co-ordination, skill

accuracy and reaction time) (Hill 1927 cited in Shellock and Prentice 1985, deVries 1980)

To increase the rate and force of muscle contraction and contractile mechanical efficiency (through

increased muscle temperature) (Bergh 1980 and deVries 1980)

To increase the suppleness of connective tissue (resulting in less incidence of musculotendonous

injuries) (Lehmann et al 1970, Sapega et al 1981).

The result of the above responses lead to an athlete's increased ability to do physical work (Bergh & Ekblom

1979), which is extremely important for sports requiring short duration high intensity work bursts such as sprinting

and jumping (Bergh 1980, Karvonen 1978). The improvement in the nervous system is especially helpful for

athletes involved in sports that demand high levels of complete body movement, such as team sport athletes.

The major criticism against the "TYPICAL WARM UP' is that it does not adequately prepare the athletes for the

demands placed upon them in the ensuring session. Generally the initial jog is at a pace that has a minimal effect

upon body temperature, and usually consists of jogging forwards, and in a straight line.

The stretching performed is usually that of static stretching, with most stretches performed slowly and with the

athletes either standing still or sitting on the ground. This method of stretching has been shown to be beneficial for

the increase in limb range of motion (Beaulieu 1981, Sapega et al 1981, Shellock & Prentice 1985, Taylor et al

1990), and aims to relax the muscles so that they are less resistant to passive stress for stretching. But this type of

stretching does not prepare the muscle and connective tissue for the active contraction - relaxation process that

will occur with any running, jumping or kicking movements as required in a dynamic sport training or game

situation.

During this stretching period (typically from 5 – 20 minutes), the body is very efficient in removing excess body

heat, so the small increase in body temperature from the initial jog is quickly lost if the athlete does nothing but

statically stretch for this time. This is even more prevalent in cold climates or cold seasons (Autumn & Winter)

which is when many team sport competitions are held. Many injuries occur at the beginning of a competition due

largely to an inadequate preparation for the activity (Lehmann et al 1970, Sapega et al 1981). A poor warm-up can

be one factor to be blamed for such injuries occurring, and can easily be corrected with a modification to warm-up

procedures by the athletes involved.

Inadequate warming up can lead to less than optimal speed and skill levels that could result in quick scoring by the

opposing team or individual early in the game leading then to athletes having to catch up placing more pressure on

the player(s) involved.

To make changes to the way a warm-up is performed, the aim of the warm-up for a dynamic sport should be

altered, such that the warm-up should be:

The complete physical and mental preparation for the dynamic actions to follow. The athlete should be

able to begin the game or training session totally ready to perform at maximal intensity if required.

The alternative warm-up procedures that I am suggesting is a variation of the above traditional method. With more

active jogging and dynamic stretching techniques, the athlete will be better prepared for the ensuring session or

game. In training situations the athlete will spend less time in the warm-up phase therefore allowing more time for

the main body of the session where all the learning takes place.

The initial jog is now replaced with a more dynamic series of running exercises that include regular alternation of

running forwards, backwards, sideways, high knee drills, butt flicks, crossovers, bounding, jumps and progressive

sprints. This component will only take 2-4 minutes depending on the climate. It is expected that the athletes are

breathing quite heavily at the end of this short series of exercises.

With the stretching component, static stretching can still be included in the program, as many athletes still feel they

need some static stretching to really prepare themselves (with time it would be ideal to phase static stretching out

of the warm up routine and place it only in the warm down period). One muscle group is stretched between each

run or drill, Eg. the hamstring group, and the athletes are given approximately 30 seconds to stretch both

hamstrings statically (this also has the affect of decreasing talk time between athletes which can be a major time

waster, especially with younger athletes). The athletes are then directed to perform another dynamic activity, either

an easy run-through or if running drills have been taught, they perform variations of skipping and running drills and

butt kick drills.

A warmup sequence for athletes who feel they need to statically stretch could be as follows:

Jog forward, backwards, sideways, etc.

Bounds and jumps

Static stretch of hamstring group (30 seconds)

Run-through (forwards and backwards) or running drills (A's, B's

etc)

Static stretch of quadriceps group (30 seconds)

Run-throughs/drills (higher intensity)

Stretch adductors (groin) (30 seconds)

Run-throughs/drills (higher intensity)

Stretch calves (30 seconds)

Run throughs/drills (near maximal)

Stretch (athletes' choice)

100% intensity sprint

** Start of training session.

Once the athlete has attained a mild sweat in normal ambient conditions, and is able to perform speed runs and

drills at maximum (this process is progressive), the athlete should now be considered warmed up for the ensuring

training session or game.

The dynamic stretching component is very important for the specific preparation of the musculature to dynamic

movements. Dynamic stretching is defined as repetitive contractions of an agonist muscle to produce quick

stretches of the antagonistic muscle (Kurz 1990), so any active callisthenic movement can be classified as

dynamic stretching (jumping, body rotations, bending, etc).

This method very specifically prepares the muscle tissue for active muscle contraction and relaxation as required

in a sporting situation. There is limited ability by this method to cause long-term increases in range of motion due

to the limited time that a muscle is held in a stretch. This short stretching time is not long enough to allow time

dependent stress relaxation to occur, leading to minimal flexibility improvements (Taylor et al 1990). Therefore it is

important to include some static stretching in the warm down to continue to improve; joint range of motion

(Beaulieu 198 1, Sapega et al 198 1, Shellock and Prentice 1985, Taylor et al 1990); removal waste products such

as lactic acid (Bale and James 1991, deVrivs 1980); and to increase the athlete's rate of recovery (Mickelson and

Hagerman 1978, Hagerman 198 1, Kamen 1984, Bale and James 1991).

The total time for this type of warm up routine is approximately 5 - 15 minutes, with the athletes fully ready to

perform as required by the coach at the end of this time. If compared to the many sports that have athletes warm

up for 25+ minutes, this is a saving of approximately 5-20 minutes every session that could then be used for more

work in the main body of the session. Assuming that due to an inadequate warm up the athlete takes another 10-

15 minutes to warm up properly during the main body of the training session there could be a saving of up to 25+

minutes per session. If the athlete trains 3 times per week for 40 weeks (a year of training) this could be a total

increase in quality training time of 50-60 hours per year. Since one of the biggest limitations in coaching is the lack

of time to develop all the attributes in the athletes you work with, to be able to add an extra 50-60 hours per year to

the training program without adding any more sessions, may make the difference between your athletes achieving

or not achieving the level of excellence that they and you as the coach are striving for.

The key to this type of warm up is to make the dynamic portion of the warm UP progressive and ensure that the

limbs are taken through at least the ranges of motion that will be required in the game situation. The time for static

stretching is after the game or training situation as this leads to more rapid recovery for ensuing sessions.

REFERENCES

Bale, P. and James, H. 1991. Massage, warm-down and rest as recuperative measures after short term Intense

exercise. Physiotherapy In Sport. 13:44.

Reaulleu, JY_ 1981. Developing a stretching program. Phys. & Spts Med. 9:59-69.

Bergh, V. & Ekbioni~ B. 1979. Physical performance and peak aerobic power at different body temperatures. J.

Appl. Physiol. 46:885.889.

Bergh, V. 1980. Human power at subnormal body temperatures. Acta Physiol Scand. 478. (suppi.):1-39.

Blomstrand, E., Bergh, V, Essen-Gustausson, B. & Ekblom, B. 1984. Influence of low muscle temperature on

muscle metabolism during Intense dynamic exercise. Acta. Physiol. Scand. 120:229-236.

deVries, HA, 1980. Physiology of Exercise for Physical Education and Athletics Wilfiain C. Brown, Dubuque.

Hagerman, F.C. 1981. Post-exercise pain. Oarsman, 13:14.17.

Kamen, G. 1984. Stretch recovery patterns following exercise with an imposed myostatic stretch. Arch. Phys. Med.

and Rehab. 65:178.181.

Karvonen, J. 1978. Warming up and Its physiological effects. Acta Univer. sitatis Ouluensis. Series D. No. 31.

Pharmacologica et physiologica. No. 6.

Kurz, T. 1990. Stretching Scientifically. A Guide toFlexibility Training. Stadion Publishing. Cypress.

Lchmann, JX, Masock, A.S, Warren, C.G. & Koblanski, Nj. 1970. Effect of therapeutic temperatures on tendon

extensibility. Arch. of Phy. Med. & Rehab. 51:481-487.

Mickelson, T. and Hagerman, F. 1978. Should you take the time for warm-up, warm-down? Oarsman. 10:15.19.

Rigby, B. 1964. The effect of mechanical extension under the thermal stability of collagen. Biochim. Blophys. Acta.

79:634. 636.

Sapega, A.A., Quedenfeld, T.C., Moyer, R.A. & Bulter, R.A. 1981. Biophysical factors in range-of-motion exercise.

Phys. & Spts Med. 9:57-65.

Shellock, F.G. & Prentice, WX. 1985. Warmup and stretching for Improved physical performance and prevention of

sports-related injuries. Spts. Med.2:267. 278.

Taylor, D.C., Dalton,J.D, Seaber, A.V. & Garrett Jr, W.E. 1990. Viscoelastic properties of muscle-tendon units: the

biomechanical effects of stretching. Am. J. Spts. Med. 18:300-309.

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