Abstract
Baseball has one of the highest impact injury rates of all sports. These injuries are primarily attributed to impact by a ball after it has been hit, pitched or thrown. This paper will review the incidence and causal factors for impact injuries in baseball. Attention is given to the design and material properties of bats, in light of evidence suggesting balls hit into the infield from metal bats can reach velocities potentially lethal to defensive players. The distribution of bat mass along the long axis of the implement appears a major factor in the greater performance potential of metal bats over wooden bats of equal length and mass. The dynamic behaviour of baseballs has also been implicated in the severity of head and chest injuries experienced by players. Balls of greatly reduced stiffness have been introduced for junior play, but debate still remains over their performance and impact characteristics. The behaviour of the ball during high-speed impact with the bat has been the subject of relatively limited research, and the effect of manipulating baseball material properties to decrease batted-ball velocity is unclear. The value of batting helmets is evident in the observed reduction of head injuries in baseball, but the use of protective vests to decrease the incidence and severity of cardio-thoracic trauma appears to be contraindicated.
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References
Janda DH, Viano DC, Andrzejak DV, et al. An analysis of preventive methods for baseball-induced chest impact injuries. Clin J Sport Med 1992; 2: 172–9
Mueller FO, Marshall SW, Kirby DP. Injuries in Little League baseball from 1987 through 1996: implications for prevention. Phys Sportsmed 2001; 29(7): 41–9
Viano DC, McCleary JD, Andrzejak DV, et al. Analysis and comparison of head impacts using baseballs of various hardness and a hybrid III dummy. Clin J Sport Med 1993; 3: 217–28
Rutherford Jr GW, Kennedy J, McGhee L. Hazard analysis: base and softball related injuries to children 5–14 years of age. Washington, DC: U.S. Consumers Product Safety Commission, Epidemiology and Health Services, Division of Hazard Analysis, 1984
National Center for Catastrophic Sports Injury Research (NCC-SIR). 19th annual report: Fall 1982–Spring 2001. Chapel Hill (NC): University of North Carolina, 2002
Adler P, Monticone Jr RC. Injuries and deaths related to baseball (children ages 5 to 14). In: Kyle S, editor. Youth baseball protective equipment: final report. Washington, DC: US Consumer Product Safety Commission, Epidemiology and Health Services, Hazard Analysis Division, 1996: 1–43
Pasternack JS, Veenema KR, Callahan CM. Baseball injuries: a Little League survey. Pediatrics 1996; 98 (3 Pt 1): 445–8
van Amerongen R, Rosen M, Winnik G, et al. Ventricular fibrillation following blunt chest trauma from a baseball. Pediatr Emerg Care 1997; 13(2): 107–10
Dick RW. A discussion of the baseball bat issue related to injury from a batted ball. NCAA News 1999; Apr 12: 4
Viano DC, Andrzejak DV, King AI. Fatal chest injury by baseball impact in children: a brief review. Clin J Sport Med 1992; 2: 161–5
Bryant FO, Burkett LN, Chen SS, et al. Dynamic and performance characteristics of baseball bats. Res Q Exerc Sport 1979; 48: 505–10
Greenwald RM, Penna LH, Crisco JJ. Differences in batted-ball speed with wood and aluminium baseball bats: a batting cage study. J Appl Biomech 2001; 17(3): 241–52
Nicholls RL, Elliott BC, Miller K. Bat design and ball exit velocity in baseball: implications for player safety. In: Ackland T, Goodman C, editors. A sports medicine Odyssey: challenges, controversies and change. Perth: Australian Conference of Science and Medicine in Sport, 2001 Oct
Crisco JJ, Hendee SP, Greenwald RM. The influence of baseball modulus and mass on head and chest impacts: a theoretical study. Med Sci Sports Exerc 1997; 29(1): 26–36
Giacobbe PA, Scarton HA, Lee Y-S. Dynamic hardness (SDH) of baseballs and softballs. In: Hoerner EF, Cosgrove FA, editors. International Symposium on Safety in Baseball/Softball (ASTM STP 1313). Philadelphia (PA): American Society for Testing Materials, 1997: 47–66
Heald JH, Pass DA. Ball standards relevant to risk of head injury. In: Hoerner EF, editor. Head and neck injuries in sports (ASTM STP 1229). Philadelphia (PA): American Society for Testing Materials, 1994: 223–38
Hendee SP, Greenwald RM, Crisco JJ. Static and dynamic properties of various baseballs. J Appl Biomech 1998; 14: 390–400
Khalil TB, Viano DC. Critical issues in finite element modeling of head impact. In: Backaitis SH, editor. Biomechanics of impact injury and injury tolerances of the head-neck complex. Philadelphia (PA): Society of Automotive Engineers, 1993: 1107–22
Vinger PF, Duma SM, Crandall J. Baseball hardness as a risk factor for eye injuries. Arch Ophthalmol 1999; 117(3): 354–8
Vincent GM, McPeak H. Commotio cordis: a deadly consequence of chest trauma. Phys Sportsmed 2000; 28(11): 31–9
Ashley S. Wood-composite baseball bats take the field. Mech Eng 1991; 113(8): 43–5
Brody H. Models of baseball bats. Am J Phys 1990; 58(8): 756–8
Nicholls RL, Miller K, Elliot BC. Constitutive modelling of baseball behaviour. In: Milburn P, Walmsley A, editors. Proceedings of the XIXth International Society of Biomechanics Congress; 2003 Jul 6–12; Dunedin. Dunedin: University of Otago
Fleisig GS, Zheng N, Stodden DF, et al. Relationship between bat mass properties and bat velocity. Sports Eng 2002; 5(1): 1–8
Chauvin DJ, Carlson LE. A comparative test method for dynamic response of baseballs and softballs. In: Hoerner EF, Cosgrove FA, editors. International symposium on safety in baseball and softball (ASTM STP 1313). Philadelphia (PA): American Society for Testing Materials, 1997: 38–46
Zagelbaum BM, Hersh PS, Donnenfeld ED, et al. Ocular trauma in major-league baseball players. N Engl J Med 1994; 330(14): 1021–3
Kyle SB, Adler P, Monticone RC. Reducing youth baseball injuries with protective equipment. Consumer Product Saf Rev 1996; 1(1): 1–4
Link MS, Wang PJ, Pandian NG, et al. An experimental model of sudden death due to low-energy chest-wall impact (commotio cordis). N Engl J Med 1998; 338(25): 1805–11
Link MS, Maron BJ, Wang PJ, et al. Reduced risk of sudden death from chest wall blows (commotio cordis) with safety baseballs. Pediatrics 2002; 109(5): 873–8
Viano DC, Andrzejak DV, Polley TZ, et al. Mechanism of fatal chest injury by baseball impact: development of an experimental model. Clin J Sport Med 1992; 2: 166–71
Viano DC, Lau IV. A viscous tolerance criterion for soft tissue injury assessment. J Biomech 1988; 21(5): 387–99
Viano D, Bir CA, Cheney AK, et al. Prevention of commotio cordis in baseball: an evaluation of chest protectors. J Trauma 2000; 49(6): 1023–8
American Academy of Pediatrics Committee on Sports Medicine and Fitness. Risk of injury from baseball and softball in children 5 to 14 years of age. Pediatrics 1994; 93(4): 690–2
Baseball committee agrees on standards for nonwood bats. NCAA News 1996; Jul 22: 10
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Nicholls, R.L., Elliott, B.C. & Miller, K. Impact Injuries in Baseball. Sports Med 34, 17–25 (2004). https://doi.org/10.2165/00007256-200434010-00003
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DOI: https://doi.org/10.2165/00007256-200434010-00003