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T42 is a disability sport classification for disability athletics (track and jump events only), applying to athletes with single above the knee amputations or a disability that is comparable. This class includes ISOD classified A2 and A9 competitors.

Definition

This classification is for disability athletics competing in track and jump events. This classification is one of several classifications for athletes with ambulant related disabilities. Similar classifications are T43, T44, T45 and T46. The International Paralympic Committee defined this class in 2011 as: "Single above knee amputees and athletes with other impairments that are comparable to a single above knee amputation. This includes athletes with loss of muscle power in the lower limbs consistent with Class F57 or F58 class." The International Paralympic Committee defined the T42 to T44 classifications on their website in July 2016 as, "Lower limb affected by limb deficiency, leg length difference, impaired muscle power or impaired range of movement".

• Colour guide for understanding full body diagrams
• Disability type for some T42 classified competitors

Disability groups

Amputees

People who are amputees compete in this class, including ISOD A2 and A9.

Lower limb amputees

This class includes ISOD A2 classified athletes. People in this class use a prosthetic limb when competing in athletics. It has four parts: a socket, a knee, a shank and a foot. Above the knee amputees have difficulty using standard able-bodied splint actions because of the differences in their functional muscle mass. As a result, they often use a specialized sprinting technique called “Leg-Over-Leg”. This technique involves using hip extensions to avoid deceleration caused by the prosthetic leg hitting the ground. Use of a specially made carbon fibre running prosthetic leg assists runners in this class in lowering their heart rate compared to using a prosthetic not designed for running. Runners in this class can have lower metabolic costs compared to elite runners over middle and long distances.

A study was done comparing the performance of athletics competitors at the 1984 Summer Paralympics. It found there was no significant difference in performance in times between women in A1, A2 and A3 in the 100 meter race, men in A1, A2 and A3 in the 100 meter race, and men in A1, A2, A3 and A4 in the 400 meter race.

Upper and lower limb amputees

Members of the ISOD A9 class compete in T42, T43, T44, F42, F43, F44, F56, F57, and F58. The shank length of people in this class can differ dramatically, and is not uniform across the class.

The nature of an A9 athlete's amputations can effect their physiology and sports performance. Because they are missing a limb, amputees are more prone to overuse injuries in their remaining limbs. Common problems with intact upper limbs for people in this class include rotator cuffs tearing, shoulder impingement, epicondylitis and peripheral nerve entrapment.

Performance and rules

In relay events involving T40s classes, no baton is used. Instead, a hand off takes place via touch in the exchange zone. People in this class who are lower limb amputees are required to wear their leg prosthesis when they are on the track, and they must run. They cannot hop.

People with arm amputations in this class can have elevated padded blocks to place their stumps on for the start of the race. These blocks need to be in a neutral color or a color similar to that of the track, and they must be placed entirely behind the starting line. Their location needs to be such that they do not interfere with the start of any other athlete.

In throwing events, implement weights are as follows:

Events

There are a number of different events open to people in this class internationally. Many competitions have their own minimum qualifying standards.

History

The classification was created by the International Paralympic Committee and has roots in a 2003 attempt to address "the overall objective to support and co-ordinate the ongoing development of accurate, reliable, consistent and credible sport focused classification systems and their implementation."

Becoming classified

For this class, classification generally has four phases. The first stage of classification is a health examination. For amputees in this class, this is often done on site at a sports training facility or competition. The second stage is observation in practice, the third stage is observation in competition and the last stage is assigning the sportsperson to a relevant class. During the observation phase involving training or practice, all athletes in this class may be asked to demonstrate their skills in athletics, such as running or jumping. A determination is then made as to what classification an athlete should compete in. Classifications may be Confirmed or Review status. For athletes who do not have access to a full classification panel, Provisional classification is available; this is a temporary Review classification, considered an indication of class only, and generally used only in lower levels of competition.

Competitors

Notable current competitors in this class include Kelly Cartwright, Scott Reardon, Heinrich Popow, Earle Connor, Wojtek Czyz and Martina Caironi. Double above knee amputees Vanessa Low and Richard Whitehead also compete in the T42 classification, both achieved T42 world records and won T42 Paralympic Gold medals.

References

1. Buckley, Jane (2011). "Understanding Classification: A Guide to the Classification Systems used in Paralympic Sports". Archived from the original on 11 April 2011. Retrieved 12 November 2011.
2. "Summer Sports » Athletics". Australia: Australian Paralympic Committee. Retrieved 19 November 2011.
3. Tweedy, Sean (16 July 2010). "Research Report - IPC Athletics Classification Project for Physical Impairments" (PDF). Queensland, Australia: International Paralympic Committee. p. 42. Archived from the original (PDF) on 14 May 2012. Retrieved 19 November 2011.
4. "IPC Athletics Classification & Categories". www.paralympic.org. Retrieved 2016-07-22.
5. ^ "CLASSIFICATION SYSTEM FOR STUDENTS WITH A DISABILITY". Queensland Sport. Archived from the original on April 4, 2015. Retrieved July 23, 2016.
6. ^ "Classification 101". Blaze Sports. June 2012. Archived from the original on August 16, 2016. Retrieved July 24, 2016.
7. ^ Broad, Elizabeth (2014-02-06). Sports Nutrition for Paralympic Athletes. CRC Press. ISBN 9781466507562.
8. van Eijsden-Besseling, M. D. F. (1985). "The (Non)sense of the Present-Day Classification System of Sports for the Disabled, Regarding Paralysed and Amputee Athletes". Paraplegia. 23. International Medical Society of Paraplegia. Retrieved July 25, 2016.
9. Nolan, Lee; Patritti, Benjamin L.; Stana, Laura; Tweedy, Sean M. (2011). "Is Increased Residual Shank Length a Competitive Advantage for Elite Transtibial Amputee Long Jumpers?" (PDF). Adapted Physical Activity Quarterly. 28 (3): 267–276. doi:10.1123/apaq.28.3.267. PMID 21725118.
10. ^ Miller, Mark D.; Thompson, Stephen R. (2014-04-04). DeLee & Drez's Orthopaedic Sports Medicine. Elsevier Health Sciences. ISBN 9781455742219.
11. ^ "PARALYMPIC TRACK & FIELD: Officials Training" (PDF). USOC. United States Olympic Committee. December 11, 2013. Retrieved August 6, 2016.
12. "ATHLETICS: RIO QUALIFICATION" (PDF). International Paralympic Committee. Archived from the original (PDF) on 2016-08-18.
13. "Paralympic Classification Today". International Paralympic Committee. 22 April 2010. p. 3. {{cite web}}: Missing or empty |url= (help)
14. Tweedy, Sean M.; Beckman, Emma M.; Connick, Mark J. (August 2014). "Paralympic Classification: Conceptual Basis, Current Methods, and Research Update". Paralympic Sports Medicine and Science. 6 (85). Retrieved July 25, 2016.
15. "CLASSIFICATION Information for Athletes" (PDF). Sydney Australia: Australian Paralympic Committee. 2 July 2010. Retrieved 19 November 2011.
16. Howe, David (2008-02-19). The Cultural Politics of the Paralympic Movement: Through an Anthropological Lens. Routledge. ISBN 978-1134440825.

v t e Para-athletics classification
	Track and jump events	T11 T12 T13 T20 T32 T33 T34 T35 T36 T37 T38 T40 T41 T42 T43 T44 T45 T46 T47 T51 T52 T53 T54
	Throwing events	F11 F12 F13 F20 F31 F32 F33 F34 F35 F36 F37 F38 F40 F41 F42 F43 F44 F45 F46 F51 F52 F53 F54 F55 F56 F57

v t e Amputee sports classification
	General A1 A2 A3 A4 A5 A6 A7 A8 A9
	Wheelchair basketball 2 point player 3 point player 4 point player 4.5 point player
	Athletics T42 T43 T44 T45 T46 T47 F56 F57 F58
	Cycling LC1 LC2 LC3 LC4
	Skiing LW1 LW2 LW3 LW4 LW5/7 LW6/8 LW9 LW12
	Swimming S2 S3 S4 S5 S6 S7 S8 S9 S10

• Amputee sports classifications
• Les Autres sports classifications
• Para-athletics classifications
• Wheelchair sports classifications