Navigation Links
Sleep preference can predict performance of Major League Baseball pitchers
Date:6/8/2010

WESTCHESTER, IL A Major League Baseball pitcher's natural sleep preference might affect how he performs in day and night games, according to a research abstract that will be presented Wednesday, June 9, 2010, in San Antonio, Texas, at SLEEP 2010, the 24th annual meeting of the Associated Professional Sleep Societies LLC.

Results indicate that pitchers who were morning types performed statistically better overall than those who were evening types. In early games that started before 7 p.m., the earned run average (ERA) of pitchers who were morning types (3.06) was lower than the average ERA of pitchers who were evening types (3.49); however, in games that started at 7 p.m. or later, pitchers who were evening types performed slightly better (4.07 ERA) than morning types (4.15 ERA).

"We were surprised to see that chronotype did affect pitching," said principal investigator and lead author W. Christopher Winter, MD, medical director of the Martha Jefferson Hospital Sleep Medicine Center in Charlottesville, Va. "We were also surprised to see that pitchers who were more 'morning type' seemed to do better overall."

Individual pitchers showed a trend toward higher ERAs in the late games. According to Winter, this supports previous research showing that the peak performance time for most athletes is between mid-afternoon and early evening.

The study involved 18 pitchers from five MLB teams: the Los Angeles Dodgers, New York Mets, Philadelphia Phillies, San Francisco Giants and Tampa Bay Rays. Sleep preference was determined using a modified version of the Morningness-Eveningness Questionnaire (MEQ). It identifies a person's tendency to be either a morning type who prefers to go to bed and wake up early, or an evening type who prefers to stay up late at night and wake up late in the day. Ten participants were found to be evening types, and eight were morning types.

The study used the players' statistics from the 2009 season, which provided about 728 early innings and 845 late innings for analysis. Game start times were adjusted for travel using the principle that for every time zone crossed, it takes 24 hours to adjust.

"These results are important as they are potentially giving insight into an entirely new way to grade or classify an athlete, in this specific case a pitcher," said Winter. "This study may provide insight as to which pitchers would be best in a given situation based upon when the game is being played. For example, a critical game being played in the evening might be a better situation to pitch an evening-type pitcher versus a day-type pitcher."

Winter also has studied the effect of travel across time zones on the performance of MLB teams. At SLEEP 2008 he presented the initial findings of a 10-year retrospective study that was later published in the September 2009 issue of the International Journal of Sports Physiology and Performance. He found that teams traveling from Western time zones to Eastern time zones were 14 percent more likely to win than teams traveling from east to west. Teams also won more than 60 percent of the games in which they had a three-hour "circadian advantage."


'/>"/>

Contact: Kathleen McCann
kmccann@aasmnet.org
708-492-0930
American Academy of Sleep Medicine
Source:Eurekalert

Related medicine news :

1. First-time parents daily sleep duration predicts their relationship satisfaction
2. CPAP therapy provides a memory boost for adults with sleep apnea
3. The best and worst work schedules: Shift start times can impact sleep and alertness
4. Getting extra sleep improves the athletic performance of collegiate football players
5. Study finds a seasonal variance in sleep-disordered breathing in young children
6. Childhood parasomnias such as sleepwalking and bedwetting may persist into adolescence
7. US dental schools leave graduates unprepared to screen for sleep disorders
8. Sleep-disordered breathing is common but hard to detect in pediatric patients
9. Nasendoscopy proves useful in predicting treatment success in sleep apnea patients
10. Sleep apnea patients using oral appliance therapy show high efficacy and compliance
11. Questionnaires help dentists screen for sleep-disordered breathing in children
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th Annual Kids Fun ... NJ. This free event, sponsored by Global Healthcare Management’s CEO, Jon Letko, is ... is geared towards children of all ages; it is a non-competitive, non-timed event, which ...
(Date:10/13/2017)... ... 13, 2017 , ... “The Journey: From the Mountains to the Mission Field”: ... souls in the Philippines. “The Journey: From the Mountains to the Mission Field” is ... Bible. She has taught all ages and currently teaches a class of ladies at ...
(Date:10/12/2017)... ... October 12, 2017 , ... Planet Fitness, one of the ... today its plans to open a flagship location in Covington, LA at 401 N. ... To Go store next to Office Depot in the Holiday Square shopping center. Its ...
(Date:10/12/2017)... ... 2017 , ... Asante, a nationally recognized health system in ... existing home health joint venture through an agreement, effective October 1, 2017, to ... home health company with Asante, delivering clinically integrated care, for the past eight ...
(Date:10/12/2017)... ... October 12, 2017 , ... Leading pediatric oncology experts at ... for the 49th Congress of the International Society of Paediatric Oncology (SIOP) ... Center for Cancer and Blood Disorders at Children’s National, and Stephen P. ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... -- Caris Life Sciences ® , a leading innovator in ... medicine, today announced that St. Jude Medical Center,s Crosson ... as its 17 th member. Through participation with ... Institute will help develop standards of care and best ... cancer treatment more precise and effective. ...
(Date:10/10/2017)... , Oct. 10, 2017  NDS received FDA 510(k) clearance in ... medical-grade battery-powered display stand specifically designed for endoscopy environments. An innovative ... into a clinical solution to support the improvement of patient outcomes, ... Design ... Solution ...
(Date:10/5/2017)... Oct. 5, 2017  In response to the ... and Maxillofacial Surgeons (AAOMS) released prescribing recommendations that ... be used as a first-line therapy to manage ... Recognizing the value and ... Paper "Opioid Prescribing: Acute and Postoperative Pain Management" ...
Breaking Medicine Technology: