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Background Longitudinal studies demonstrate that physical activity (PA) declines on average from adolescence to early adulthood. However, some subgroups of adolescents increase activity while others decrease or maintain high or low activity. Determinants of change or maintenance of (in)activity may differ between subgroups and are valuable information for targeted health promotion. The purpose of this study was to identify PA patterns from adolescence to early adulthood, and also to explore how different activity domains and Sedentary Behaviour (SB) are associated with PA patterns. Methods The data of this observational cohort study (collected in 2013/2014 and 2017/2018) consisted of 254 Finns at age 15 and 19 participating the Health Promoting Sports Club study. K-means cluster analysis for longitudinal data was performed to identify participant clusters (patterns) based on their accelerometry-measured moderate-to-vigorous PA (MVPA). Associations of sports club participation (SC), active commuting (AC), and SB with PA patterns were examined by logistic regression analysis. Results (preliminary) Five MVPA patterns were identified: inactivity maintainers (n = 71), activity maintainers (n = 70), decreasers from moderate (to low) PA (n = 61), decreasers from high (to moderate) PA (n = 32), and increasers (n = 20). At age 15, SC participation (41-97%) and AC (47-75%) were common in all the patterns. By age 19, clear dropout from these activities was prevalent (SC participation mean 32%, AC 31-63%). Maintained SC participation was associated with a higher likelihood of belonging to the decreasers from high PA (OR = 11.2, CI = 1.4-90.0) and to the combined group of increasers and activity maintainers (OR = 3.6, CI = 1.8-7.4); also with a lower likelihood of being an inactivity maintainer (OR = 0.1, CI = 0.02-0.2). Dropout from SC was related to a higher likelihood of being a decreaser from high PA (OR = 10.9, CI = 1.3-90.7). Maintenance/adoption of AC was associated with a lower likelihood of being an inactivity maintainer (OR = 0.3, CI = 0.1-0.7). Decreased SB was related to a higher likelihood of belonging to the activity maintainers and increasers (OR = 0.96, CI = 0.93-0.98). Conclusions PA patterns diverge greatly over the transition to adulthood. Changes in SC participation, AC, and SB show different associations with diverging PA patterns. Hence, tailored PA promotion is recommended. nonPeerReviewed

Background Sports club participation begins to decrease in adolescence. There is a lack of knowledge, how sports club participation changes from adolescence to early adulthood in Finland, and how goal orientation influences on it. Therefore, the aim of this study is to examine if goal orientation is associated to changes in sports club participation during afore mentioned critical years. Methods The study design is longitudinal. A sample of 366 (140 boys, 226 girls) adolescents were followed from age 15 (year 2014) to age 19 (year 2018). Sports club participation (yes/no) and goal orientation (no competitive goal, sports for hobby or physical development/regional, national or international success in adolescence/national, international or professional success in adulthood) were measured using questionnaires. In order to study changes in sports club participation, and goal orientation, descriptive statistics were performed. Gender differences were estimated using Chi-squared tests. A binary logistic regression analysis was carried out to examine the association between sports club participation, goal orientation and gender. Results By the age 19, 33% of boys and 43% of girls had dropped out from sports club, 45% of boys and 26% of girls had continued participation, and 21% of boys and 31% of girls never participated (p > 0.01). More boys (57%) than girls (31%) had a success in adulthood as a goal, and more girls (48%) than boys (27%) had a success in adolescence as a goal (p > 0.001). Adolescents with success in adulthood as a goal continued participation in sports club more likely than adolescents without competitive goal (OR = 4.81; 95% CI 2.26-10.23). Furthermore, boys were more likely to continue participation than girls (OR = 1.75; 95% CI 1.02-3.01). Conclusions The dropout from sports club activities from adolescence to early adulthood is obvious. Especially the adolescents without a competitive goal and girls are in danger to drop out. This indicates that contemporary forms of sports club activities support adolescents with strong competitive orientation. Therefore, there is a need for sports clubs to develop activities suitable for adolescents with less competitive orientation to ensure their continuous participation in sports club. nonPeerReviewed

Background Longitudinal studies demonstrate an average decline in physical activity (PA) from adolescence to young adulthood. However, while some subgroups of adolescents decrease activity, others increase or maintain high or low activity. Activity domains may differ between subgroups (exhibiting different PA patterns), and they offer valuable information for targeted health promotion. Hence, the aim of this study was to identify PA patterns from adolescence to young adulthood; also to explore the associations of (i) changes in PA domains and in sedentary time, (ii) sociodemographic factors, and (iii) self-rated health with diverging PA patterns. Methods The observational cohort study data encompassed 254 adolescents at age 15 and age 19. K-means cluster analysis for longitudinal data was performed to identify participant clusters (patterns) based on their accelerometry-measured moderate-to-vigorous PA (MVPA). Logistic regressions were applied in further analysis. Results Five PA patterns were identified: inactivity maintainers (n = 71), activity maintainers (n = 70), decreasers from moderate (to low) PA (n = 61), decreasers from high (to moderate) PA (n = 32), and increasers (n = 20). At age 15, participation in sports clubs (SC, 41–97%) and active commuting (AC, 47–75%) was common in all the patterns. By age 19, clear dropout from these activities was prevalent (SC participation mean 32%, AC 31–63%). Inactivity maintainers reported the lowest amount of weekly school physical education. Dropout from SC – in contrast to non-participation in SC – was associated with higher odds of being a decreaser from high PA, and with lower odds of being an inactivity maintainer. Maintained SC participation was associated with higher odds of belonging to the decreasers from high PA, and to the combined group of activity maintainers and increasers; also with lower odds of being an inactivity maintainer. Maintenance/adoption of AC was associated with decreased odds of being an inactivity maintainer. Self-reported health at age 19 was associated with the patterns of maintained activity and inactivity. Conclusions PA patterns diverge over the transition to adulthood. Changes in SC participation and AC show different associations with diverging PA patterns. Hence, tailored PA promotion is recommended. Supplementary Information The online version contains supplementary material available at 10.1186/s12966-021-01130-x.

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Vain joka seitsemäs lukiolainen liikkuu reippaastti päivittäin vähintään tunnin. Lukiolaisille kertyy keskimäärin 6 178 askelta päivässä. Heidän vanhemmilta ja kaverilta saamansa liikunnallinen tuki oli vähäisempää kuin nuoremmilla ikäluokilla ja vaihteli suuresti nuorten välillä. Lukiolaiset pitivät liikuntaa tärkeänä ja opiskelukykyä edistävänä oppiaineena. Oppilaitosten ja internetin jälkeen liikunta- ja urheiluharrastuksissa koettiin kolmanneksi eniten syrjintää ja kiusaamista. nonPeerReviewed

peer-reviewed The objective of this study was to analyze the associations of various individual- and environmental- related factors with subgroups of daily, frequent, moderate and low moderate-to vigorous physical activity (MVPA) among children and adolescents. Data were obtained from the Finnish School-age Physical Activity (FSPA) study 2016 from 4677 national representative 11-, 13-, and 15-year-old children and adolescents. MVPA and individual- and environmental-related factors were assessed by a questionnaire and analyzed by two-level logistic regression. Seventeen of the twenty-one variables were statistically significantly associated with MVPA. However, only three variables were statistically significant in all MVPA subgroups, whereby self-directed PA at least twice a week, fewer perceived barriers, and higher peer support increased the odds of participating in more MVPA. The results from this study showed essential differences among the MVPA subgroups, also supporting previous findings, whereby various individual- and environmental-based factors are associated with children and adolescents’ levels of MVPA. Challenges to designing and implementing effective interventions are based on the need to account for individual differences within the population, as well as the varied connections between PA with different social and physical environments where children and adolescents’ PA takes place. PA interventions with various actions at multiple levels are warranted

Hieman reilu kolmasosa suomalaislapsista ja -nuorista liikkui suosituksen mukaan – toimintarajoitteita kokevista joka neljäs. Lasten ja nuorten liikunnalle antamien merkitysten kirjo oli kaventunut ja esteet vahvistuneet, vaikka koettu pätevyys ja liikuntamotivaatio olivat korkealla. Suurin osa lapsista ja nuorista kannatti urheilun eettisten sääntöjen noudattamista. Säännöllinen liikkuminen oli myönteisesti yhteydessä koettuun terveyteen. Säännöllisesti liikkuvilla oli myös vähemmän yksinäisyyden kokemuksia. nonPeerReviewed

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Participation in organized sports is a popular and important part of the lives of children and adolescents and is associated with improved psychological and social health, as well as an increased likelihood of meeting physical activity (PA) recommendations. Changes in modern society, including increased car ownership and use of technology and electronic media, have led to an additional focus on the importance of health‐enhancing PA among children and adolescents. The aim of this article was to study the secular changes in self‐reports of participation in organized sports clubs and leisure‐time vigorous physical activity (LVPA), and whether the relationship between participation in organized sports clubs and LVPA has changed from 1985 to 2014. Questionnaire data were collected in two cross‐sectional samples of Finnish and Norwegian 11‐, 13‐ and 15‐year‐olds in 1985/1986 (n = 7137) and 2014 (n = 9218). Overall, participation in organized sports clubs and level of LVPA appears to have changed in the same direction in the two Nordic countries. The proportion of 11‐year‐olds reporting to be participants in organized sports clubs increased from 1985/1986 to 2014. There was an overall increase in self‐reported LVPA. The association between participation in sports clubs and LVPA was stronger in 2014 than in 1985/1986. The findings indicated subgroup differences, in particular with regard to a steeper increase in LVPA and participation in sports clubs among Finnish girls. We suggest that attention should be given to the role of organized sports to better understand secular changes in PA. peerReviewed

Vammaisista henkilöistä puhutaan usein yhtenäisenä ryhmänä ikään kuin vamma olisi kaikilla samanlainen tai sen vaikutukset toimintakykyyn samankaltaiset. Vaikka erilaisten vammojen ja pitkäaikaissairauksien tiedetään rajoittavan ihmisten tekemistä eri lailla, liikunta-aktiivisuutta mittaavissa tutkimuksissa tai tilastoinneissa niitä ei ole useinkaan eroteltu. Syinä ovat voineet olla esimerkiksi pienet tutkittavien määrät tai liian yleiset mittausmenetelmät. Tämän tutkimuksen tavoitteena on tarkastella vuoden 2016 ”Lasten ja nuorten liikuntakäyttäytyminen Suomessa” (LIITU) -tutkimuksen aineistossa toimintarajoitteisuutta, liikunta-aktiivisuutta, liikuntaseuraan kuulumista ja istumisen määrää ja verrata niitä vammattomiin nuoriin. LIITU-tutkimuksessa 11–15-vuotiaita nuoria (n=4724) pyydettiin raportoimaan kokemansa toimintarajoitteet (nähdä, kuulla, puhua sujuvasti, liikkua tai käsitellä esineitä, hengittää tai muistaa asioita/ keskittyä). Lisäksi selvitettiin toimintarajoitteisuuden yhteyksiä liikuntakäyttäytymiseen, urheiluseurassa harrastamiseen ja istumiseen. Noin 15 prosenttia nuorista raportoi kokemansa toimintarajoitteen, joka häiritsee heidän arkeaan. Erilaisista toimintarajoitteista liikkumisen vaikeudet vaikuttavat liikunta-aktiivisuuteen eniten. Erityisesti liikkumisen vaikeuksia kokevat nuoret raportoivat tilastollisesti merkitsevästi vähemmän reipasta/rasittavaa liikuntaa, vähemmän urheiluseura-aktiivisuutta ja enemmän istumista viikonloppuisin kuin ne nuoret, joilla ei ollut toimintarajoitteita. Liikkumisen vaikeuksia koke vat pojat harrastivat myös selvästi vähemmän reipasta liikuntaa verrattuna muihin toimintarajoitteita kokeviin nuoriin. Enemmän huomiota tulisi kiinnittää olosuhteiden ja palveluiden esteettömyyteen ja saavutettavuuteen, jotta kaikilla olisi mahdollisuus liikkua omien edellytystensä sallimissa rajoissa ja osallistua urheiluseuratoimintaan. Often people with disabilities are referred to as a heterogeneous group of people, with the same ability to function. Rather than use the term ‘disability’, it would be best to use terms that describe functional limitations, because functions can restrict performance in physical activity tasks. Many studies or statistics that measure physical activity do not distinguish various types of functional limitations, such as visual, hearing or moving impairments. Therefore, the purpose of this study was to explore differences in physical activity, sports club membership, and sitting time in adolescents with and without disabilities through the Finnish School-aged Physical Activity (SPA) study (in Finnish LIITU). All adolescents aged between 11–15 years old (n=4724) were asked to report levels of functional difficulties as indicators of disability and their physical in/activity behaviours during the spring of 2016. About 15 % of adolescents had one kind of functional limitation that affects their daily activities. More specifically adolescents with moving difficulties reported significantly less days of moderate to vigorous physical activities, fewer were sports club members, and sat for more hours during the weekend than adolescents without disabilities. Moreover, boys with moving difficulties clearly fell behind their peers with other functional limitations when examining their moderate to vigorous physical activities. More effort is needed to create accessible services and space needed to allow everybody to be active within their own capabilities, and to participate in physical activities, join sports clubs, and spend less time sitting. peerReviewed

Liikunta-aktiivisuuden drop-off -ilmiö eli liikkumisen väheneminen iän myötä on edelleen kansallinen erityispiirteemme. Samalla lapset ja nuoret käyttävät noin puolet valveillaoloajastaan istuen tai makuulla. Paikallaanolo lisääntyy selvästi iän myötä. Päivittäistä ruutuaikaa kertyy paljon. Suositellun korkeintaan kaksi tuntia ruudun ääressä vietti vain viisi prosenttia 9–15-vuotiaista. nonPeerReviewed

Lasten ja nuorten tavoitteellinen valmennus alkoi urheiluseuroissa 1970-luvulla (Itkonen 2003, 340). Urheiluseuratoiminnan suosio on ollut näihin päiviin asti kasvava. Suosituimpia urheilulajeja ovat joukkuepalloilulajit. (Kansallinen liikuntatutkimus 2009–2010, 16.) Urheilun ja liikunnan parissa muodostuu myös jokaiselle harrastajalle oma harrastushistoriansa, jossa on sekä yksilöllisiä että yhteisiä piirteitä. Urheileminen ja liikunnan harrastaminen muodostavatkin elämänkulkuun oman, kyseiseen elämänalueeseen rajatuvan polun. Tätä voidaan kutsua urheilupoluksi. (Aarresola 2015) Tässä artikkelissa pureudumme joukkueurheilulajeja harrastavien nuorten urheilupolkuihin. Aineistona käytämme sekä laajaa, harrastajille suunnattua kyselyä (n=2013), että tavoitteellisesti urheilevien nuorten haastatteluja (n=11). peerReviewed