Sunday, 26 October 2014

Assignment on Volley Ball

                           




Volleyball
Team member                                6
Mixed gender                                 Single
Type                                                  Indoor, beach, grass
Equipment                                       Volleyball
Volleyball is a team sport in which two teams of six players are separated by a net. Each team tries to score points by grounding a ball on the other team's court under organized rules. It has been a part of the official program of the Summer Olympic Games since 1964.
             The complete rules are extensive. But simply, play proceeds as follows: a player on one of the teams begins a 'rally' by serving the ball (tossing or releasing it and then hitting it with a hand or arm), from behind the back boundary line of the court, over the net, and into the receiving team's court. The receiving team must not let the ball be grounded within their court. The team may touch the ball up to 3 times but individual players may not touch the ball twice consecutively. Typically, the first two touches are used to set up for an attack, an attempt to direct the ball back over the net in such a way that the serving team is unable to prevent it from being grounded in their court.
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The court dimensions
A volleyball court is 18 m (59 ft) long and 9 m (29.5 ft) wide, divided into 9 m × 9 m halves by a one-meter (40-inch) wide net. The top of the net is 2.43 m (8 ft 0 in) above the center of the court for men's competition, and 2.24 m (7 ft 4 in) for women's competition, varied for veterans and junior competitions.
The minimum height clearance for indoor volleyball courts is 7 m (23 ft), although a clearance of 8 m (26 ft) is recommended.
A line 3 m (9.84 ft) from and parallel to the net is considered the "attack line". This "3 meter" (or "10-foot") line divides the court into "back row" and "front row" areas (also back court and front court). These are in turn divided into 3 areas each: these are numbered as follows, starting from area "1", which is the position of the serving player:                                                                                                         
After a team gains the serve (also known as siding out), its members must rotate in a clockwise direction, with the player previously in area "2" moving to area "1" and so on, with the player from area "1" moving to area "6".
The team courts are surrounded by an area called the free zone which is a minimum of 3 meters wide and which the players may enter and play within after the service of the ball .All lines denoting the boundaries of the team court and the attack zone are drawn or painted within the dimensions of the area and are therefore a part of the court or zone.                                                                          

  Lines on the court                                                                                                                                                                                                                                                                                                     

The width of all lines of the court are 5cm.Lines colour should be different from the colour of floor.                                                                                                           Boundary lines                                                                                                                          Two end lines and two side lines indicate the playing court.                                                          Center Line 
Axis of center line divides the court  9*9 two equal parts.

Attack Line

A  parallel line exist from the distance of 3m from center line which is called attack lines.

Zone And Area

Front Zone

Service Zone

Substitution Zone

Libero Replacement Zone

Warm Up Zone

Penalty Area

Front Zone

                   Front Zone consist   the last corner of attack line from the Axis of center line.

Service Zone

                   The Area of service Zone 9m wide behind the every end line.Length of every line is 15cm.

Substitution Zone

                 Substitution Zone limited between two Attack Lines and Sorer Table.

Libero Replacement Zone

               Libero replacement Zone is the part of free Zone.This Zone limited the End line from Attack line .

Warm Up Area

               The Area of Warm up is 3m*3m in international competitions.The Location of this  Area is in the corners of sides of benches and the outer side of Free Zone.

Penalty Area

         Penalty Area Locates  behind the bench of every Team.Its Area is 1m*1m and equipped the others.

Temperature

The Temperature must be 10 cg [50Fh] for playing volleyball.

Lighting

        The Lighting must be 1000 to 1500 lux in the area of international competitions of international
volleyball.[Luxes means the units of light.]

Net And Posts

Structure Of Net And Heights

Length of Net                      9.50m
Width of Net                         1m
Net Boxes’s size                    10/cm
Height of Net for Males       2.43m
Height of Net for Female     2.24m
Color of Net                           Black

Side Bands

Two White Bands are vertically fastened with Net and directly connected just above the side Line.The width of side bands 5cm and the length is 1m and they considers the part of Net.

Antennae

Antennae is a Flexible Roll.An The Antennaes  are connected at each external corner of side Bands.
                       Length of Antennae                     1.80m
                       Circumference of Antennae        10mm
                       Length of Antennae above          80cm
                       the band of Net
Antennae considers the part of Net and it appears the limits of crossing the ball.

Posts

         Posts are adjustable and the height of posts is 2.55m.

Balls

                                                                                                                                                                                                               FIVB regulations state that the ball must be spherical, made of leather or synthetic leather, have a circumference of 65–67 cm, a weight of 260–280 g and an inside pressure of 0.30–0.325 kg/cm2. Other governing bodies have similar regulations.
Game play

       Player Equipment                                                                           
Uniform, Socks And Sports Shoes.
            Color of Uniform, Socks and Sports Shoes will be same of all team except Libero.
Height of Numbers on front of shirt will be 15cm and on the back side 20cm.The          representative stripe will be 2cm wide.
                    Team Captain will paste 2cm wide and 8cm long stripe under the numbers of chest on his     shirt.  
          Players can wear contact Glasses on their responsibility.

        Team Leaders

             Libero players can not become Team Captain.
             Captains and Coaches of both teams will be responsible of behavior and discipline of their Team Members.

          Structure Of Play

The Toss

          The Toss is done in the presence of Captains of both Teams.
          Winning Team has a right that
          To play first or allow the second team to play first.
         Choose the side of court.
         Loosing Team allow to choose later.

Warm Up Session

       3 or 5 mints give for Warm up.

Rotation

                                                     




Playing Actions

States of Playing the Ball

Ball in Play
Ball out of Play

   Ball in Play

        When the Ball touch the surface of Playing court with boundary  lines then ball In considered.
Referee calls the ball in if any partof it hits the lines.

      Ball out 

  •           Ball is ruled OUT, if
    • the ball lands outside the boundary lines (without touching the opponent)
    • The ball hits the antenna
    • any of the net or cables outside the antennas


Contacting the Ball:
  • Players are NOT allowed to catch, hold or throw the ball.
  • Players are NOT allowed to hit or block the opponents serve
  • Attacking ball which is coming over the net is ILLEGAL, if it has NOT broken the plane of the net.
    In other words the player is ALLOWED to swing the ball when it breaks the plane of the net.
Very Basic Volleyball Rules Fouls
  • The back row player performs the attack front row. (It is ILLEGAL for the back row player to step on the attack line when hitting.)
  • The back row player blocks the ball (the player having any part of the body above the net and touching the ball)
 This referee just called a touch on the
block or defender.
  • The player double contacts the ball when setting the ball (you CAN NOT double hit the ball when setting it)
  • Player touches the net while the ball is in the play

    (EXCEPTION: if the ball is hit the net and it pushes the net to the opposing player)
  • Stepping on the back line when serving the ball.
  • Reaching over the net to block the ball is ALLOWED, if the other side as used all the three touches. It is a FALSE, if opposing team has not used all the touches (and there is somebody trying to make a play there.)


           Service    

         Service is such an act by which game is continued by throwing the Ball.The act of service is        performed by the back right player from service Zone.
Scorer's table just before a game
When the ball contacts the floor within the court boundaries or an error is made, the team that did not make the error is awarded a point, whether they served the ball or not. If the ball hits the line, the ball is counted as in. The team that won the point serves for the next point. If the team that won the point served in the previous point, the same player serves again. If the team that won the point did not serve the previous point, the players of the serving team rotate their position on the court in a clockwise manner. The game continues, with the first team to score 25 points by a two-point margin is awarded the set. Matches are best-of-five sets and the fifth set, if necessary, is usually played to 15 points
Libero
In 1998 the libero player was introduced internationally.[20] The libero is a player specialized in defensive skills: the libero must wear a contrasting jersey color from his or her teammates and cannot block or attack the ball when it is entirely above net height. When the ball is not in play, the libero can replace any back-row player, without prior notice to the officials. This replacement does not count against the substitution limit each team is allowed per set, although the libero may be replaced only by the player whom he or she replaced.
The libero may function as a setter only under certain restrictions. If she/he makes an overhand set, she/he must be standing behind (and not stepping on) the 3-meter line; otherwise, the ball cannot be attacked above the net in front of the 3-meter line. An underhand pass is allowed from any part of the court.
The libero is, generally, the most skilled defensive player on the team. There is also a libero tracking sheet, where the referees or officiating team must keep track of whom the libero subs in and out for. There may only be one libero per set (game), although there may be a different libero in the beginning of any new set (game).
Skills
Competitive teams master six basic skills: serve, pass, set, attack, block and dig. Each of these skills comprises a number of specific techniques that have been introduced over the years and are now considered standard practice in high-level volleyball.
Serve
Setting up for an overhand serve.
A player making a jump serve.
A player stands behind the inline and serves the ball, in an attempt to drive it into the opponent's court. His or her main objective is to make it land inside the court; it is also desirable to set the ball's direction, speed and acceleration so that it becomes difficult for the receiver to handle it properly. A serve is called an "ace" when the ball lands directly onto the court or travels outside the court after being touched by an opponent.
In contemporary volleyball, many types of serves are employed:
  • Underhand: a serve in which the player strikes the ball below the waist instead of tossing it up and striking it with an overhand throwing motion. Underhand serves are considered very easy to receive and are rarely employed in high-level competitions.
  • Sky ball serve: a specific type of underhand serve occasionally used in beach volleyball, where the ball is hit so high it comes down almost in a straight line. This serve was invented and employed almost exclusively by the Brazilian team in the early 1980s and is now considered outdated. In Brazil, this serve is called Jornada nas Estrelas (Star Trek).
  • Topspin: an overhand serve where the player tosses the ball high and hits it with a wrist span, giving it topspin which causes it to drop faster than it would otherwise and helps maintain a straight flight path. Topspin serves are generally hit hard and aimed at a specific returner or part of the court. Standing topspin serves are rarely used above the high school level of play.
  • Float: an overhand serve where the ball is hit with no spin so that its path becomes unpredictable, akin to a knuckleball in baseball.
  • Jump serve: an overhand serve where the ball is first tossed high in the air, then the player makes a timed approach and jumps to make contact with the ball, hitting it with much pace and topspin. This is the most popular serve amongst college and professional teams.
  • Jump float: an overhand serve where the ball is tossed high enough that the player may jump before hitting it similarly to a standing float serve. The ball is tossed lower than a topspin jump serve, but contact is still made while in the air. This serve is becoming more popular amongst college and professional players because it has a certain unpredictability in its flight pattern.
Pass
A player making a forearm pass or bump.
Also called reception, the pass is the attempt by a team to properly handle the opponent's serve, or any form of attack. Proper handling includes not only preventing the ball from touching the court, but also making it reach the position where the setter is standing quickly and precisely.
The skill of passing involves fundamentally two specific techniques: underarm pass, or bump, where the ball touches the inside part of the joined forearms or platform, at waist line; and overhand pass, where it is handled with the fingertips, like a set, above the head. Either are acceptable in professional and beach volleyball, however there are much tighter regulations on the overhand pass in beach volleyball.
Set



Jump set
The set is usually the second contact that a team makes with the ball. The main goal of setting is to put the ball in the air in such a way that it can be driven by an attack into the opponent's court. The setter coordinates the offensive movements of a team, and is the player who ultimately decides which player will actually attack the ball.
As with passing, one may distinguish between an overhand and a bump set. Since the former allows for more control over the speed and direction of the ball, the bump is used only when the ball is so low it cannot be properly handled with fingertips, or in beach volleyball where rules regulating overhand setting are more stringent. In the case of a set, one also speaks of a front or back set, meaning whether the ball is passed in the direction the setter is facing or behind the setter. There is also a jump set that is used when the ball is too close to the net. In this case the setter usually jumps off his or her right foot straight up to avoid going into the net. The setter usually stands about of the way from the left to the right of the net and faces the left (the larger portion of net that he or she can see).
Sometimes a setter refrains from raising the ball for a teammate to perform an attack and tries to play it directly onto the opponent's court. This movement is called a "dump".[22] This can only be performed when the setter is in the front row, otherwise it constitutes an illegal back court attack. The most common dumps are to 'throw' the ball behind the setter or in front of the setter to zones 2 and 4. More experienced setters toss the ball into the deep corners or spike the ball on the second hit.
Attack
The attack, also known as the spike, is usually the third contact a team makes with the ball. The object of attacking is to handle the ball so that it lands on the opponent's court and cannot be defended. A player makes a series of steps (the "approach"), jumps, and swings at the ball.
Ideally the contact with the ball is made at the apex of the hitter's jump. At the moment of contact, the hitter's arm is fully extended above his or her head and slightly forward, making the highest possible contact while maintaining the ability to deliver a powerful hit. The hitter uses arm swing, wrist snap, and a rapid forward contraction of the entire body to drive the ball. A 'bounce' is a slang term for a very hard/loud spike that follows an almost straight trajectory steeply downward into the opponent's court and bounces very high into the air. A "kill" is the slang term for an attack that is not returned by the other team thus resulting in a point.
Contemporary volleyball comprises a number of attacking techniques:
  • Backcourt (or backrow)/pipe attack: an attack performed by a back row player. The player must jump from behind the 3-meter line before making contact with the ball, but may land in front of the 3-meter line.
  • Line and Cross-court Shot: refers to whether the ball flies in a straight trajectory parallel to the side lines, or crosses through the court in an angle. A cross-court shot with a very pronounced angle, resulting in the ball landing near the 3-meter line, is called a cut shot.
  • Dip/Dink/Tip/Cheat/Dump: the player does not try to make a hit, but touches the ball lightly, so that it lands on an area of the opponent's court that is not being covered by the defense.
  • Tool/Wipe/Block-abuse: the player does not try to make a hard spike, but hits the ball so that it touches the opponent's block and then bounces off-court.
  • Off-speed hit: the player does not hit the ball hard, reducing its speed and thus confusing the opponent's defense.
  • Quick hit/"One": an attack (usually by the middle blocker) where the approach and jump begin before the setter contacts the ball. The set (called a "quick set") is placed only slightly above the net and the ball is struck by the hitter almost immediately after leaving the setter's hands. Quick attacks are often effective because they isolate the middle blocker to be the only blocker on the hit.
  • Slide: a variation of the quick hit that uses a low back set. The middle hitter steps around the setter and hits from behind him or her.
  • Double quick hit/"Stack"/"Tandem": a variation of quick hit where two hitters, one in front and one behind the setter or both in front of the setter, jump to perform a quick hit at the same time. It can be used to deceive opposite blockers and free a fourth hitter attacking from backcourt, maybe without block at all.



Block
3 players performing a block
Blocking refers to the actions taken by players standing at the net to stop or alter an opponent's attack.
A block that is aimed at completely stopping an attack, thus making the ball remain in the opponent's court, is called offensive. A well-executed offensive block is performed by jumping and reaching to penetrate with one's arms and hands over the net and into the opponent's area. It requires anticipating the direction the ball will go once the attack takes place. It may also require calculating the best foot work to executing the "perfect" block.
The jump should be timed so as to intercept the ball's trajectory prior to it crossing over the net. Palms are held deflected downward about 45–60 degrees toward the interior of the opponents court. A "roof" is a spectacular offensive block that redirects the power and speed of the attack straight down to the attacker's floor, as if the attacker hit the ball into the underside of a peaked house roof.
By contrast, it is called a defensive, or "soft" block if the goal is to control and deflect the hard-driven ball up so that it slows down and becomes more easy to be defended. A well-executed soft-block is performed by jumping and placing one's hands above the net with no penetration into the opponent's court and with the palms up and fingers pointing backward.
Blocking is also classified according to the number of players involved. Thus, one may speak of single (or solo), double, or triple block.
Successful blocking does not always result in a "roof" and many times does not even touch the ball. While it's obvious that a block was a success when the attacker is roofed, a block that consistently forces the attacker away from his or her 'power' or preferred attack into a more easily controlled shot by the defense is also a highly successful block.
At the same time, the block position influences the positions where other defenders place themselves while opponent hitters are spiking.
Dig
Player going for a dig.
Digging is the ability to prevent the ball from touching one's court after a spike or attack, particularly a ball that is nearly touching the ground. In many aspects, this skill is similar to passing, or bumping: overhand dig and bump are also used to distinguish between defensive actions taken with fingertips or with joined arms. It varies from passing however in that is it a much more reflex based skill, especially at the higher levels. It is especially important while digging for players to stay on their toes; several players choose to employ a split step to make sure they're ready to move in any direction.
Some specific techniques are more common in digging than in passing. A player may sometimes perform a "dive", i.e., throw his or her body in the air with a forward movement in an attempt to save the ball, and land on his or her chest. When the player also slides his or her hand under a ball that is almost touching the court, this is called a "pancake". The pancake is frequently used in indoor volleyball, but rarely if ever in beach volleyball because the uneven and infirm nature of the sand court limits the chances that the ball will make a good, clean contact with the hand. When used correctly, it is one of the more spectacular defensive volleyball plays.
Sometimes a player may also be forced to drop his or her body quickly to the floor to save the ball. In this situation, the player makes use of a specific rolling technique to minimize the chances of injuries.
Player specialization
There are 5 positions filled on every volleyball team at the elite level. Setter, Outside Hitter/Left Side Hitter, Middle Hitter, Opposite Hitter/Right Side Hitter and Libero/Defensive Specialist. Each of these positions plays a specific, key role in winning a volleyball match.
  • Setters have the task for orchestrating the offense of the team. They aim for second touch and their main responsibility is to place the ball in the air where the attackers can place the ball into the opponents' court for a point. They have to be able to operate with the hitters, manage the tempo of their side of the court and choose the right attackers to set. Setters need to have swift and skillful appraisal and tactical accuracy, and must be quick at moving around the court.
  • Liberos are defensive players who are responsible for receiving the attack or serve. They are usually the players on the court with the quickest reaction time and best passing skills. Libero means 'free' in Italian—they receive this name as they have the ability to substitute for any other player on the court during each play. They do not necessarily need to be tall, as they never play at the net, which allows shorter players with strong passing and defensive skills to excel in the position and play an important role in the team's success. A player designated as a libero for a match may not play other roles during that match. Liberos wear a different color jersey than their teammates.
  • Middle blockers or Middle hitters are players that can perform very fast attacks that usually take place near the setter. They are specialized in blocking, since they must attempt to stop equally fast plays from their opponents and then quickly set up a double block at the sides of the court. In non-beginners play, every team will have two middle hitters.
  • Outside hitters or Left side hitters attack from near the left antenna. The outside hitter is usually the most consistent hitter on the team and gets the most sets. Inaccurate first passes usually result in a set to the outside hitter rather than middle or opposite. Since most sets to the outside are high, the outside hitter may take a longer approach, always starting from outside the court sideline. In non-beginners play, there are again two outside hitters on every team in every match.
  • Opposite hitters or Right-side hitters carry the defensive workload for a volleyball team in the front row. Their primary responsibilities are to put up a well formed block against the opponents' Outside Hitters and serve as a backup setter. Sets to the opposite usually go to the right side of the antennae.
Volleyball Officials
Duties of Referees in Volleyball
The first referee is the official on the referee stand. Of the volleyball officials, this is the referee that's in charge of the match.
The first referee is also referred to as the R1. R1 is the head official of the match. The R1 has final say on all calls.
Think of the R1 as the facilitator. The R1 facilitates the match.
The R1 is the most important of volleyball officials and has various duties
.

First Referee Pre-match Duties include...
Inspects equipment/identifies ground rules
Directs informative Captain's meeting
Briefs officiating team
Observes setters during Warm-Up
Mechanics...
Scans court prior to each beckon
Is approachable but assertive
Communicates effectively with captains/coaches
Gives scorekeeper enough time to record subs
Judgment...
Call prolonged contact power dinks
Call prolonged contact 2nd or 3rd hit
Calls lifts out of net correctly (not automatically)
Judges setter/non-setter ball handling the same
Recognizes and calls back row fouls
Recognizes and calls overlaps and screens
Is preventative whenever possible
Assesses penalties appropriately
Poise...
Confident and alert appearance
Is aware of entire court/playing area
Has good reaction time on calls
Directs/Controls when necessary

Critical Elements...
Has whistle, cards and coin
Whistle is clear, sharp and authoritative
Signals are correct, visible, held
Whistles ball dead immediately, then signals
Ability to stay with the play
Uses R2 & lines people effectively
Good eye contact with R2
Calls 1st hit, prolonged contact vs multiple contact
Calls multiple contacts on 2nd & 3rd hit
Consistent judgment calls
Volleyball Officials Second Referee
The second referee is the down referee. Also referred to as the R2.

The R2 has specific duties.

Pre-match Duties...
Ensures game ball is ready
Attends Captain's meeting
Informs Scorekeeper of coin flip result
Times Warm-Up
Collects line-up sheets on time
Verifies line-ups/player position on courts
Identifies captains to R1

Mechanics...
Whistles/signals to begin & end time-out
Whistles/signals substitutions
Whistles/signal to end time between games

Teamwork...
Communicates effectively with scorekeeper
Assists R1; Discreet signals (4 hits, etc.)
Is approachable but assertive
Judgment...
Recognizes and calls overlap
Whistles ball outside or over antenna (R2 side)
Whistles ball outside playing area behind R1
Calls/Assists the back row fouls
Bench Management...
Pays attention/communicates with bench/coach
Anticipates, recognizes, controls subs/time-outs
Manages time-outs (subs off court, spills, etc)
Critical Elements
Has whistle, watch and coin
Whistle is clear, sharp and authoritative
Signals are correct, visible, holds/steps out
Mimics R1, signals (not service beckon)
Calls net fouls and centerline fouls
Stands away from net pole/standard
Good eye contact with R1
Check receiving team on each service
Focuses on defensive team side
Transitions (side to side) quickly
Scorekeeper
The scorekeeper keeps track of the match on paper. The scorekeeper is responsible for such things as filling out the pre-match heading information, recording subs, points, and timeouts.
Libero Tracker
The libero tracker tracks each teams libero on the libero tracking sheet.
Line Judges
The line judges are responsible for assisting the volleyball officials with calls.

Calls include the ball lands in, the ball lands out, the ball hits an object out of play, the ball crosses the net outside the antennae, the ball hits the antennae, and server foot faults.
Basic fouls in Volleyball
Consecutive Contacts. A player may not hit the ball 2 times consecutively except when blocking, provided the contacts take place simultaneously. However, a player may make consecutive contacts on the teams first team contact, provided the contacts occur during one action.
Four Hits. It's a fouls for a team to hit the ball 4 times before returning it.
Assisted Hit. It's illegal for a player or any object to assist a teammate in playing the ball.
Catch. It's illegal to catch or throw the ball. The ball must rebound from the hit.
Ball Crossing the Net Outside the Crossing Space. The ball must cross the net within the crossing space. The ball must cross over the net, between the antennaes and their imaginary extension, and without contacting the ceiling.
Reaching Over the Net. There are official rules for playing the ball at the net.

Penetration Under the Net. It's permitted for a player to step under the net into the opponents court provided that some part of the penetrating hand or foot is in contact with or is directly above the center line.
Contact with the Net. Contact with the net is only a fault if contact is made during the action of playing the ball or if it interferes with play.
Foot Fault. At the moment of service contact or take off for a jump serve, the server must not touch the court or the ground outside the service zone. After contact, he/she may step or land outside the service zone or inside the court.
Attacking Faults. The following are volleyball foulss for attacking...
A back row player completes an attack hit from the front zone, if at the moment of contact, the ball is entirely above the top of the net.
An opponent completes an attack hit on a served ball, when the ball is in the front zone and the ball is entirely above the top of the net.
The libero completes an attack hit, if at the moment of contact, the ball is entirely above the top of the net.
A player completes an attack hit from higher than the top of the net when the ball is coming from an overhand finger pass by a libero in the front zone.
Blocking within the Opponents Space. A blocker may place his/her hands beyond the net provided this action doesn't interfere with the opponents play. It's legal to block beyond the net, provided...

The ball would have crossed the net if not touched by a player and no member of the attacking team was in position to make a play.
The ball is falling near the net and no member of the attacking team is in position to make a play.





Contact with the ball is made after 3 team contacts.

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