Search results for "kaksostutkimus"
showing 10 items of 45 documents
Liikemittarilla mitatun fyysisen aktiivisuuden yhteys itseraportoituihin liikkumisvaikeuksiin suomalaisilla kaksosilla
2022
FinnTwin16 : A Longitudinal Study from Age 16 of a Population-Based Finnish Twin Cohort
2019
The purpose of this review is to provide a detailed and updated description of the FinnTwin16 (FT16) study and its future directions. The Finnish Twin Cohort comprises three different cohorts: the Older Twin Cohort established in the 1970s and the FinnTwin12 and FT16 initiated in the 1990s. FT16 was initiated in 1991 to identify the genetic and environmental precursors of alcoholism, but later the scope of the project expanded to studying the determinants of various health-related behaviors and diseases in different stages of life. The main areas addressed are alcohol use and its consequences, smoking, physical activity, overall physical health, eating behaviors and eating disorders, weight…
Mobility of body fat discordant older female twins
2007
Physical Activity and Academic Performance : Genetic and Environmental Associations
2020
Introduction. Physical activity and academic performance are believed to be associated. Though both traits are partially heritable, it remains unclear whether these traits also share a genetic and/or environmental background in common. We aimed to examine to what extent leisure-time physical activity and academic performance share genetic and environmental effects from early adolescence to young adulthood. Methods. Participants were Finnish twins (2543–2693 individuals/study wave) who reported their leisure-time physical activity at ages 12, 14, 17 and 24. Academic performance was assessed with teacher-reported grade point averages at ages 12 and 14 and by self-reported educational levels a…
Sustainable Working Life Patterns in a Swedish Twin Cohort : Age-Related Sequences of Sickness Absence, Disability Pension, Unemployment, and Prematu…
2022
We aimed to investigate sustainable working life via age-related sequences of sickness absence (SA), disability pension (DP), unemployment (UE), premature death, and the influence of individual characteristics, accounting for familial confounding. The sample included monozygotic (MZ) and dizygotic (DZ) same-sexed twin pairs with register data (n = 47,450) that were followed for 10 years in four age cohorts: 26–35 (n = 9892), 36–45 (n = 10,620), 46–55 (n = 12,964) and 56–65 (n = 13,974). A sequence analysis was done in a 7-element state space: 1. “Sustainable working life”: SA/DP 0–30 days and UE 0–90 days; 2. “Unemployment >90 days”: SA/DP 0–30 days and UE > 90 days; 3. “Moderate SA/DP”: SA…
Self-confidence predicts entrepreneurship and entrepreneurial success
2023
Leisure-time physical activity, weight gain and health : a prospective follow-up in twins
2011
Leisure-time physical activity habits and abdominal adiposity in young adulthood : twin cohort and co-twin control studies
2018
Twin study designs were utilized to investigate how and what types of leisure- time physical activity (LTPA) are associated with abdominal adiposity in young adulthood taking into consideration diet and other selected health factors. The data of two studies were used: the longitudinal FinnTwin16 cohort and the clinical FITFATWIN study. In FinnTwin16, questionnaire data together with self- measured waist circumference (WC) of 3 383 (1 578 men) cohort members at mean ages 24.5 y and 34 y were used to study LTPA level and waist gain. Cross- sectional data of 4 027 (1 874 men) cohort members at mean age 34 y was used to study LTPA modes and WC. In FITFATTWIN study, ten monozygotic (MZ) male twi…
Does the epigenetic clock GrimAge predict mortality independent of genetic influences : an 18 year follow-up study in older female twin pairs
2021
Background: Epigenetic clocks are based on DNA methylation (DNAm). It has been suggested that these clocks are useable markers of biological aging and premature mortality. Because genetic factors explain variations in both epigenetic aging and mortality, this association could also be explained by shared genetic factors. We investigated the infuence of genetic and lifestyle factors (smoking, alcohol consumption, physical activity, chronic diseases, body mass index) and education on the association of accelerated epigenetic aging with mortality using a longitudinal twin design. Utilizing a publicly available online tool, we calculated the epigenetic age using two epigenetic clocks, Horvath D…