4-point player

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Women competing in wheelchair basketball
Australian Liesl Tesch is a 4-point player

4-point player is a disability sport classification for wheelchair basketball. Players in this class have normal trunk function but have a reduced level of functioning in one or both of their lower limbs. They may have difficulty with sideways movements. People in this class include ISOD classified A1, A2 and A3 players.

Because of their high point number, players in this class may see fewer minutes than lower-point players. Their increased functionality means they can move faster on the court then lower-point players. This means they can pick up a lot more rebounds but are also prone to having more turnovers.

The class includes people with amputations. Amputees are put into this class depending on the length of their stumps and if they play using prosthetic legs. Classification into this classes has four phases. They are a medical assessment, observation during training, observation during competition and assessment. Observation during training may include a game of one on one. Once put into this class, it is very difficult to be classified out of it.

People in this class include Australia's Cobi Crispin, Bridie Kean, Liesl Tesch and Leanne Del Toso.

Definition

This classification is for

Australian Paralympic Committee defines this classification as: "Players with normal trunk movement, but usually due to limitations in one lower limb they have difficulty with controlled sideways movement to one side."[4] The International Wheelchair Basketball Federation defines a 4-point player as "Normal trunk movement, but usually due to limitations in one lower limb they have difficulty with controlled sideways movement to one side."[5] The Cardiff Celts, a wheelchair basketball team in Wales, explain this classification as, "able to move the trunk forcefully in the direction of the follow-through after shooting. Class 4 players are able to flex, extend and rotate the trunk maximally while performing both one-handed and two-handed passes and can lean forward and to at least one side to grasp an over-the-head rebound with both hands. Class 4 players are able to push and stop the wheelchair with rapid acceleration and maximal forward movement of the trunk. Typical Class 4 Disabilities include : L5-S1 paraplegia, with control of hip abduction and extension movements on at least one side. Post-polio paralysis with one leg involvement. Hemipelvectomy. Single above- knee amputees with short residual limbs. Most double above-knee amputees. Some double below-knee amputees."[6]

Strategy and on court ability

4-point players and 4.5-point players receive less playing time than 1-point players because of their higher point value.[7] 4-point players can move their wheelchairs at a significantly faster speed than 1-point players.[8] There is a significant difference in special endurance between 2-point players, and 3- and 4-point players, with 2-point players having less special endurance.[8] In games, 4-point players steal the ball three times more often than 1-point players.[8] 4-point players generally have the greatest number of rebounds on the court because of competitive advantage when under the basket in terms of height, stability and strength.[8] 4-point players turn over the ball with much greater frequency than 1-point players.[8]

Disability groups

Amputees

Profile of an A1 wheelchair basketball player who may be classified as a 4-point player.

People with amputations may compete in this class. This includes A1, A2, A3, A4 and A9 ISOD classified players.[9] Because of the potential for balance issues related to having an amputation, during weight training, amputees are encouraged to use a spotter when lifting more than 15 pounds (6.8 kg).[10]

Lower limb amputees

Wheelchair basketball profile of an A2 player
ISOD A3 classified player profile as a 4-point player

ISOD classified A1 players may be found in this class.[11] This ISOD class is for people who have both legs amputated above the knee.[10] There is a lot of variation though in which IWBF class these players may be put into. Those with hip articulations are generally classified as 3-point players, while those with slightly longer leg stumps in this class are 3.5-point players. Those above the knee amputees with the longest stumps who use prosthetic legs may be classified as 4-point players.[11] Lower limb amputations effect a person's energy cost for being mobile. To keep their oxygen consumption rate similar to people without lower limb amputations, they need to walk slower.[12] A1 basketball players use around 120% more oxygen to walk or run the same distance as someone without a lower limb amputation.[12]

ISOD classified A2 players can be classified a 4-point players, especially if the amputation type is a hip disarticulation. A2 players can have issues with controlling their sideways movements.[13][14] A2 players use around 87% more oxygen to walk or run the same distance as someone without a lower limb amputation.[12]

ISOD classified

4.5-point players, though they could also be classified as 3.5-point players. The cutoff point between the three classes is generally based on the location of the amputations. People with amputations longer than 2/3rds the length of their thigh are generally 4.5-point players. Those with shorter amputations are 4-point players.[13][15] A3 players use around 41% more oxygen to walk or run the same distance as someone without a lower limb amputation.[12] Players in this class can have issues with controlling their sideways movements.[13]

ISOD classified

4.5-point players. The cutoff point between the two classes is generally based on the location of the amputations. People with amputations longer than 2/3rds the length of their thigh are generally 4.5-point players. Those with shorter amputations are 4-point players.[13][16] A4 basketball players use around 7% more oxygen to walk or run the same distance as someone without a lower limb amputation.[12]

Upper and lower limb amputees

Type of amputation for an A9 classified sportsperson.

ISOD classified A9 players may be found in this class.[17] The class they play in will be specific to the location of their amputations and their lengths. Players with hip disarticulation in both legs are 3.0 point players while players with two slightly longer above the knee amputations are 3.5-point players. Players with one hip disarticulation may be 3.5-point players or 4-point players. People with amputations longer than 2/3rds the length of their thigh when wearing a prosthesis are generally 4.5-point players. Those with shorter amputations are 4-point players. At this point, the classification system for people in this class then considers the nature of the hand amputation by subtracting points to assign a person to a class. A wrist disarticulation moves a player down a point class, while a pair of hand amputations moves a player down two-point classes, with players with upper limb amputations ending up as low as a 1-point player.[18]

Spinal cord injuries

People with spinal cord injuries compete in this class, including F6 or F7 sportspeople.[19][20]

F6