Navigation Links
Fatigue Affects Baseball Players' Strike-Zone Judgment: Study
Date:6/4/2013

TUESDAY, June 4 (HealthDay News) -- Major League Baseball players may be struck out by fatigue as the 162-game season progresses, according to a new study.

In 24 of 30 teams, players' strike-zone judgment was much better when the season began in April than when coming to an end in September. A separate study found a significant link between sleepiness and MLB players' longevity in the league.

The findings recently appeared in an online supplement of the journal Sleep and will be presented this week at the annual meeting of the Associated Professional Sleep Societies, in Baltimore.

"Plate discipline -- as measured by a hitter's tendency to swing at pitches outside of the strike zone -- got progressively worse over the course of a Major League Baseball season, and this decline followed a linear pattern that could be predicted by data from the six previous seasons," principal study investigator Dr. Scott Kutscher, an assistant professor of sleep and neurology at Vanderbilt University Medical Center, said in an American Academy of Sleep Medicine news release.

How does sleep deprivation tie into to this worsening performance?

"We theorize that this decline is tied to fatigue that develops over the course of the season due to a combination of frequency of travel and paucity of days off," Kutscher said.

The researchers tracked how often MLB batters swung at pitches outside of the strike zone during the 2012 season. They sorted the data by month for all 30 teams and compared the first month with the last month of the season.

The information collected on each team was also compared to a statistical model based on the 2006 through 2011 MLB seasons, which predicted a linear decline in strike-zone judgment each month. The researchers noted that their findings contradict the belief that plate discipline should improve over the course of the season due to frequent practice.

"Teams on the East or West Coast, with good or bad records, they all follow the same pattern of worsening plate discipline," Kutscher said. "This study suggests hitters always demonstrate the best judgment when at bat in the first month of the season."

The researchers suggested that teams could gain a competitive advantage from focusing on how to manage fatigue among their players.

"A team that recognizes this trend and takes steps to slow or reverse it -- by enacting fatigue-mitigating strategies, especially in the middle and late season, for example -- can gain a large competitive advantage over their opponent," Kutscher said. "This may have already occurred, as the San Francisco Giants -- an outlier in the study in that their plate discipline improved during the 2012 season -- went on to win the World Series."

Meanwhile, the other study revealed that as players' self-reported sleepiness increased, the likelihood that they would still be in the league three seasons later decreased linearly. The greater their sleepiness score, the less likely they would still be playing at the time of the follow-up.

For instance, 72 percent of players with a score of 5 on a sleepiness-rating scale were still in the league at the follow-up point. In contrast, only 39 percent of players with a score of 10, and 14 percent of players with a score of 15 were also still playing three seasons later.

"We were shocked by how linear the relationship was," study principal investigator Dr. W. Christopher Winter, medical director of the Martha Jefferson Hospital Sleep Medicine Center in Charlottesville, Va., said in the news release. "It is a great reminder that sleepiness impairs performance. From a sports perspective, this is incredibly important. What this study shows is that we can use the science of sleep to predict sports performance."

Winter said that MLB teams could easily implement sleepiness screening as part of their player evaluations.

"I can envision simple questions about sleep being a part of the battery of tests professional organizations use to evaluate prospects," Winter noted. He added that a player with a sleep disorder that causes excessive daytime sleepiness could benefit from treatment with a sleep specialist.

"That player may suddenly become far more valuable," Winter said.

More information

The U.S. National Library of Medicine has more about fatigue.

-- Mary Elizabeth Dallas

SOURCE: American Academy of Sleep Medicine, news release, May 30, 2013


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Short Walks May Ease Fatigue in Pancreatic Cancer Patients
2. Surgical Residents Often Fatigued, Study Confirms
3. Iron supplements can reduce fatigue in nonanemic women
4. Nursing researcher uses Nintendo Wii to fight cancer-related fatigue
5. Chronic fatigue syndrome is not linked to suspect viruses
6. New Study Debunks Virus Theory for Chronic Fatigue Syndrome
7. Moffitt Researchers find genetic predictors of fatigue for some prostate cancer patients
8. Acupuncture Might Ease Fatigue Linked to Breast Cancer
9. The image of mental fatigue
10. FDA Panel Considers 1st Drug for Chronic Fatigue Syndrome
11. FDA Panel Recommends Against 1st Drug for Chronic Fatigue Syndrome
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fatigue Affects Baseball Players' Strike-Zone Judgment: Study
(Date:1/17/2017)... ... January 17, 2017 , ... Kevin Harrington (one of the ... be featuring DRTV campaigns regarding the topic of Beauty and Personal Care. ... of themselves. What better way to commit to these changes than beginning with personal ...
(Date:1/17/2017)... ... January 17, 2017 , ... ... for EMS and firefighting professionals, has released four new continuing education courses as ... are taught live in an online classroom and meet the requirements of the ...
(Date:1/17/2017)... ... January 17, 2017 , ... Neil H. Greco Insurance Agency, a ... communities throughout the region, is launching a charity drive to raise awareness of heart ... the deadliest killer in America, and is responsible for 1 in every 4 deaths ...
(Date:1/17/2017)... ... 17, 2017 , ... Physicians Education Review®, LCC (PER®) announces ... for the 34th Annual Miami Breast Cancer Conference®, on March 9-12, 2017 at ... Talamo, said, “We are delighted to have Sandra Lee join us as our ...
(Date:1/17/2017)... ... January 17, 2017 , ... ... Montclair State University’s Athletic Training Education program forged a relationship built upon the ... Education Program, which is consists of both student members and certified members of ...
Breaking Medicine News(10 mins):
(Date:1/17/2017)... BALTIMORE , Jan. 17, 2017 Paragon ... to provide product development services for a variety ... Diseases (NIAID) medical product development activities. The ... a contractor pool for task order awards up ... global leader in manufacturing and process development of ...
(Date:1/17/2017)... Jan. 17, 2017  Pennsylvania Secretary of Health ... for medical marijuana growers/processors and dispensaries are now ... website . Permit applications will be accepted from ... "This is an important step forward in getting ... it," Secretary Murphy said. "We,ve developed a thorough ...
(Date:1/17/2017)... 2017  Edwards Lifesciences Corporation (NYSE: EW ... heart disease and critical care monitoring, plans to announce ... 2016 after the market closes on Wednesday, February 1, ... p.m. ET that day to discuss those results. ... 407-8037 or (201) 689-8037.  For 72 hours following the ...
Breaking Medicine Technology: