Publications by authors named "Vartiainen Matti"

The COVID-19 crisis has disrupted when, where, and how employees work. Drawing on a sample of 5452 Finnish employees, this study explores the factors associated with employees' abrupt adjustment to remote work. Specifically, this study examines factors (i.

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Objective: In sports concussion research, the importance of an individualized approach incorporating neuropsychological assessment data has been emphasized. This study examined the impact of acute signs of concussion on post-injury cognitive functioning using reliable change methodology in a sample of Finnish, elite-level, youth ice hockey players.

Methods: From a sample of 1,823 players (all male, 14-20 years old) who completed preseason baseline testing with the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT®) battery, two subgroups were identified.

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Assessment of cognition is an important part of concussion management. The common paradigm of baseline and postinjury evaluations is recommended but due to the often lacking baseline data, reliable normative values are needed. The Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT®) battery is a widely used method of cognitive assessment offering several language options.

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Previous research has reported lower cognitive test scores on baseline testing in athletes reporting multiple previous concussions or a history of learning disability (LD). Age also has an important influence on cognitive performance. While these factors have been considered individually in previous studies, the present study is the first to explore the interaction of age, self-reported LD, and history of concussion on baseline Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT®) in a nationwide study of adolescent athletes.

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Objectives: To examine test-retest reliability of the SCAT3 for two consecutive seasons using a large sample of professional male ice hockey players, and to make recommendations for interpreting change on the test.

Design: A cross-sectional descriptive study.

Methods: Preseason baseline testing was administered in the beginning of the seasons 2013-2014 and 2014-2015 to 179 professional male hockey players in rink side settings.

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Introduction: Mild traumatic brain injuries (MTBI) or concussions often result in problems with attention, executive functions, and motor control. For better identification of these diverse problems, novel approaches integrating tests of cognitive and motor functioning are needed. The aim was to characterize minor changes in motor and cognitive performance after sports-related concussions with a novel test battery, including balance tests and a computerized multilimb reaction time test.

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Objectives: To determine normative reference values for the Sport Concussion Assessment Tool-3rd Edition (SCAT3) using a large sample of professional male ice hockey players.

Design: A descriptive cross-sectional study.

Methods: Preseason baseline testing was administered individually to 304 professional male ice hockey players.

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Objective: To explore the relationship between cognitive and motor performance in physically well-recovered men with traumatic brain injury.

Design: Cross-sectional explorative study in a national neurorehabilitation centre.

Subjects: Men with post-acute traumatic brain injury (n = 34; aged 19-55 years) who had recovered well physically.

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Objective: The primary aim of this study was to compare the motor performance of physically well-recovered men with traumatic brain injury with that of healthy men.

Design: Cross-sectional study in a national rehabilitation centre.

Methods: Static and dynamic balance, agility and rhythm co-ordination of men with traumatic brain injury (n=34) and healthy controls (n=36) were assessed.

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Personal 48-hr exposures of 15 randomly selected participants as well as microenvironment concentrations in each participant's residence and workplace were measured for 16 carbonyl compounds during summer-fall 1997 as a part of the Air Pollution Exposure Distributions within Adult Urban Populations in Europe (EXPOLIS) study in Helsinki, Finland. When formaldehyde and acetaldehyde were excluded, geometric mean ambient air concentrations outside each participant's residence were less than 1 ppb for all target compounds. Geometric mean residential indoor concentrations of carbonyls were systematically higher than geometric mean personal exposures and indoor workplace concentrations.

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