Question: What was the nickname of the footballer whose brain injuries got significant attention in the film League of Denial ?

Context articles: Tapping rate
Focal and diffuse brain injury
Brain injury
Brain Trauma Foundation
Walter Reed Army Medical Center neglect scandal
League of Denial
Closed head injury
Sports injury
Mike Webster
Brain damage

The tapping rate is a psychological test given to assess the integrity of the neuromuscular system and examine motor control.
 The finger tapping test has the advantage of being a relatively pure neurologically driven motor task because the inertial and intersegmental interactions are so small that biomechanical influences on movement are reduced.
 Finger tapping involves three important features: time, spatial amplitude, and frequency.
 Studies have reported that the average number of taps per 10-second interval can be used to distinguish between patients with mild traumatic brain injury and healthy controls, is slower in people one month after sustaining a mild traumatic brain injury, and in experienced boxers and soccer players who frequently "headed" the ball.
 The speed of finger tapping has also been found to be related to severity of initial traumatic brain injury, and can be used to help assess recovery from mild and moderate traumatic brain injuries.
Focal and diffuse brain injury are ways to classify brain injury: focal injury occurs in a specific location, while diffuse injury occurs over a more widespread area.
 It is common for both focal and diffuse damage to occur as the result of the same event; many traumatic brain injuries have aspects of both focal and diffuse injury.
 Focal injuries are commonly associated with an injury in which the head strikes or is struck by an object; diffuse injuries are more often found in acceleration/deceleration injuries, in which the head does not necessarily contact anything, but brain tissue is damaged because tissue types with varying densities accelerate at different rates.
 In addition to physical trauma, other types of brain injury, such as stroke, can also produce focal and diffuse injuries.
 There may be primary and secondary brain injury processes.
A brain injury is an injury to the brain of a living organism, and can be categorized by many properties.
Primary and secondary brain injuries identify the processes involved, while focal and diffuse brain injury describe the severity and localization.
For over 30 years, Brain Trauma Foundation has been conducting innovative clinical research and developing evidence-based guidelines that improve outcomes for the millions of people who suffer from traumatic brain injuries every year.
 From concussion to coma, Brain Trauma Foundation’s expertise allows us to better educate and train myriad audiences that encounter traumatic brain injuries in situations ranging from the battlefield to an athletic arena to a hospital.
 Brain Trauma Foundation, a 501c3 non-profit, was founded in 1986 by Dr. Jam Ghajar, MD, PhD, FACS and has its headquarters in Campbell, CA.
 Current research projects include EYE-TRAC Advance, which tests normal and concussed subjects using a novel goggle eye tracking technology that assesses visual attention focus precisely, and BTEC (Brain Trauma Evidence-Based Consortium), which is developing an evidence-based classification for the spectrum of traumatic brain injury and modeling post-TBI trajectories and outcomes.
The Walter Reed Army Medical Center neglect scandal refers to a series of allegations of unsatisfactory conditions, treatment of patients, and management at the Walter Reed Army Medical Center (WRAMC) in Washington, D.C. culminating in two articles published by "The Washington Post" in February 2007.
 Several cases of patient neglect and shoddy living conditions were reported as early as 2004.
 "Soldiers suffering from traumatic brain injuries or stress disorders, others with amputated limbs, have languished for weeks and months on end in vermin-infested quarters waiting for a decision on their military status and a ruling on the level of benefits they will receive if they are discharged and transferred to the civilian-run Veterans Administration (VA) healthcare system."
 When the scandal broke, soldiers were pressured to keep quiet and punished with daily inspections for speaking to the press.
 Significant public and media attention was generated, which in turn prompted a number of congressional and executive actions, including resignations of several high-ranking officers.
 CPT Micheal Dake did not implement any changes that rectified the disrepair of Building 18.
 The initiatives of the following Command Team lead to Building 18 being repaired and made livable.
 It was when the building was left dormat during the summer that mold became a problem.
League of Denial is a 2013 book, initially broadcast as a documentary film, about traumatic brain injury in the National Football League (NFL), particularly concussions and chronic traumatic encephalopathy (CTE).
 The documentary, entitled "League of Denial: The NFL's Concussion Crisis", was produced by "Frontline" and broadcast on PBS.
 The book was written by ESPN reporters Mark Fainaru-Wada and Steve Fainaru.
 The book and film devote significant attention to the story of Mike Webster and his football-related brain injuries, and the pathologist who examined Webster's brain, Bennet Omalu.
 The film also looks closely at the efforts of researchers led by Ann McKee at Boston University's Center for the Study of Traumatic Encephalopathy, where the brains of a number of former NFL athletes have been examined.
Closed head injury is a type of traumatic brain injury in which the skull and dura mater remain intact.
 Closed-head injuries are the leading cause of death in children under 4 years old and the most common cause of physical disability and cognitive impairment in young people.
 Overall, closed-head injuries and other forms of mild traumatic brain injury account for about 75% of the estimated 1.7 million brain injuries that occur annually in the United States.
 Brain injuries such as closed-head injuries may result in lifelong physical, cognitive, or psychological impairment and, thus, are of utmost concern with regards to public health.
Sports injuries are injuries that occur in athletic activities or exercising.
 In the United States there are about 30 million teenagers and children alone that participate in some form of organized sport.
 About 3 million avid sports competitors 14 years of age and under experience sports injuries annually, which causes some loss of time of participation in the sport.
 The leading cause of death involving sports-related injuries, although rare, is brain injuries.
 When injured the two main systems affected are the nervous and vascular systems.
 The origins in the body where numbness and tingling occurs upon sports injuries are usually the first signs of the body telling you that the body was impacted.
 Thus, when an athlete complains of numbness and especially tingling, the key to a diagnosis is to obtain a detailed history of the athlete’s acquired symptom perception, determine the effect the injury had on the body and its processes, and then establish the prime treatment method.
 In the process to determine what exactly happened in the body and the standing effects most medical professionals choose a method of technological medical devices to acquire a credible solution to the site of injury.
 Prevention helps reduce potential sport injuries.
 It is important to establish participation in warm-ups, stretching, and exercises that focus on main muscle groups commonly used in the sport of interest.
 Also, creating an injury prevention program as a team, which includes education on rehydration, nutrition, monitoring team members “at risk”, monitoring behavior, skills, and techniques.
 Season analysis reviews and preseason screenings are also beneficial reviews for preventing player sport injuries.
 One technique used in the process of preseason screening is the functional movement screen.
 The functional movement screen can assess movement patterns in athletes in order to find the at risk players.
 Following various researches about sport injuries shows that levels of anxiety, stress, and depression are elevated.
 A study in 2010 found that athletes with severe sports injuries would display higher levels of post-traumatic distress and the higher the levels of post-traumatic distress are linked with avoidant coping skills.
Michael Lewis Webster (March 18, 1952September 24, 2002) was an American football player who played as a center in the National Football League from 1974 to 1990 with the Pittsburgh Steelers and Kansas City Chiefs.
 He is a member of the Pro Football Hall of Fame, class of 1997.
 Nicknamed "Iron Mike", Webster anchored the Steelers' offensive line during much of their run of four Super Bowl victories from 1974 to 1979 and is considered by some as the best center in NFL history.
Brain damage or brain injury (BI) is the destruction or degeneration of brain cells.
 Brain injuries occur due to a wide range of internal and external factors.
 In general, brain damage refers to significant, undiscriminating trauma-induced damage, while neurotoxicity typically refers to selective, chemically induced neuron damage.