The Swedish School of Sport and Health Sciences
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Hur mycket tränar den svenska junioreliten i simning? : Finns det någon koppling mellan träningsmängd och tävlingsresultat?
No full textDet pågår ständigt diskussioner om vad det optimala träningsupplägget är för att optimera prestationerna i bassängen. Tidigare studier visar att det framför allt är två typer av upplägg som diskuteras, träning med hög volym (HVT) och träning med låg volym (LVT). Båda träningsmetoderna visar på goda resultat, vilket ledde till att syftet med denna studie var att undersöka hur den svenska junioreliten tränar. Frågeställningarna denna studie vill besvara är om det finns någon korrelation mellan olika träningsparametrar och tävlingsprestation, samt om idrottarna tränar efter Simlinjens rekommendationer. En kvantitativ forskningsmetod har använts där en digital enkät skickades ut för att besvara dessa frågor. Enkäten bestod av 12 frågor och skickades ut till föreningar med simmare kvalificerade till junior-SM, där man kunde välja att registrera upp till 3 individer. I studien valde 16 föreningar utspridda över hela Sverige att delta där totalt 49 simmare registrerades. Resultatet av studien visar på moderata till starka korrelationer mellan antalet meter, antalet timmar samt antalet pass som simmas varje vecka, till tävlingsresultat de presterade under junior-SM tävlingarna i november 2023. Resultaten från studien visar inte på korrelationer mellan de alternativa träningsformerna, som till exempel gym och landträning, och tävlingsresultat. Resultaten tyder också på att de simmare som tränar efter Simlinjens rekommendationer har i snitt högre World Aquatic-Poäng än de som inte följer dessa. There are ongoing discussions about what the optimal training method is to optimize performance in the pool. Previous studies have shown that there are mainly two types of methods that are discussed, high volume training (HVT) and low volume training (LVT). Both training methods show evidence of positive results which led to the purpose of this study, which is to investigate how the Swedish junior-elite swimmer's train. This report seeks to answer the question whether there is any correlation between different training parameters and competition performances, as well as whether the athletes train according to the recommendations of “Simlinjen”. A quantitative research method has been used where a digital survey was sent out to answer these questions. The survey consisted of 12 questions and was sent out to swimming clubs with athletes qualified for the Swedish junior national championships, you could choose to register up to 3 individuals. In this study a total of 16 clubs located all over Sweden chose to participate where a total of 49 athletes was registered. The results of this study show moderate to strong correlations between the number of meters, number of hours and number of sessions swum each week, to the competition results they performed during the junior nationals in November 2023. The results of the study show no correlations between the alternative forms of training, e.g. gym and dry-land training, and competition results. The results also indicate that the swimmers who train according to the recommendations of “Simlinjen” are averaging a higher World Aquatic-Score than those who don´t follow them
Poor knee strength is associated with higher incidence of knee injury in adolescent female football players : The Karolinska football injury cohort.
No full textPURPOSE: To investigate the association between common measures of trunk and lower extremity range of motion (ROM), strength, the results of one-leg jump tests at baseline and the incidence of subsequent substantial knee injuries in adolescent female football players. METHODS: Players were assessed at baseline regarding (1) ROM of trunk, hip, and ankle; (2) trunk, hip, and knee strength; and (3) one-leg jump tests. Players were prospectively monitored weekly for 1 year regarding knee injuries and the volume of matches and training. Hazard rate ratios (HRRs) and 95% confidence intervals (CIs) were calculated with Cox regression for the association between the baseline tests and the incidence of substantial knee injury (moderate/severe reduction in training volume or performance, or complete inability to participate in football). Exposures were categorized in tertiles (high, medium and low values). The highest tertile was used as reference. RESULTS: 376 players were included without substantial knee injury at baseline (mean age, 13.9 ± 1.1 years), and 71 (19%) reported at least one substantial knee injury during the follow-up. Several associations were found; the strongest was that players in the lowest tertile of knee extension strength had a higher incidence of knee injuries than players in the highest tertile (HRR, 2.28; 95% CI, 1.20-4.38). Players in the lowest tertile of trunk rotation ROM in lunge position half-kneeling (HRR, 0.50; 95% CI, 0.27-0.94) had lower incidence of knee injuries than players in the highest tertile. CONCLUSIONS: Poor knee strength and high trunk ROM were associated with an increased incidence of substantial knee injury in adolescent female football players. Therefore, knee-strengthening exercises during season may be recommended. LEVEL OF EVIDENCE: Level II
Effekterna på akut sinnesstämning efter ett högintensivt träningspass : En interventionsstudie med unga kvinnor
No full textSyfte och frågeställningar: Psykisk ohälsa är ett växande hälsoproblem i samhället där unga kvinnor mellan 16-29 år är överrepresenterade. Fysisk aktivitet är bevisat effektivt för att förbättra exempelvis psykosomatiska besvär bland unga vuxna. Dock finns det en kunskapslucka kring den kortvariga effekten på upplevd sinnesstämning och vilken träningsintensitet som anses påverka detta mest. Syftet med denna studie var att undersöka om högintensiv träning kan fungera som en effektiv mekanism för att påverka och förbättra sinnesstämning hos unga kvinnor. Metod: Detta är en pre-poststudie. 21 (24 ± 3,92 år) unga kvinnor deltog i ett fysiskt HIIT träningspass under 45 minuter vid ett tillfälle. Positiv och negativ affektskalan (PANAS) mättes direkt före och efter HIIT interventionen för att bedöma sinnesstämning. General Anxiety Disorder-7 (GAD-7) användes för utvärdering av ångestsymtom och i relation till PANAS för att se om effekten av träningspasset var relaterat till initial upplevd ångestnivå. För att jämföra sinnesstämning pre och postintervention analyserades data med parat T-test. Två linjära regressionsanalyser utfördes för att se om initial upplevd ångest var relaterat till post poängen på PANAS. Resultat: Deltagarnas genomsnittliga positiva affekter ökade med 12,5% (39,71 ± 3,78) efter träningen och genomsnittliga negativa affekter minskade med 3,4% (13 ± 2,89). Träningsinterventionen inducerade signifikanta ökningar av (PANAS) positiva affekter (p= <0,0001) och signifikanta minskningar av negativa affekter (p= <0,008). Högre ångestnivå korrelerade med högre nivåer av positiva affekter efter interventionen men detta samband var svagt (0,317) och inte signifikant (p= <0,081). För negativa affekter var riktningen på sambandet negativt (-0,121) men inte heller detta var signifikant (p= <0,3). Slutsats: Denna studie undersökte effekterna av högintensiv träning på unga kvinnors sinnesstämning samt eventuella kopplingar mellan upplevd ångest och sinnesstämning efter träning. Resultaten indikerar att HIIT träning i grupp har en positiv inverkan på sinnesstämningen på kort sikt, och en trend observerades mellan högre initial ångestnivå och högre positiv sinnesstämning efter träning, trots ett svagt samband. Dessa resultat antyder att fysisk aktivitet kan främja känslor av välbefinnande på kort sikt. Aim: Mental illness is a growing health problem in society where young women between 16-29 years are overrepresented. Physical activity has been proven effective in improving, for example, psychosomatic complaints among young adults. However, there is a knowledge gap regarding the short-term effect on perceived mood and which training intensity is considered to influence this the most. The aim of this study was to investigate whether high-intensity exercise can act as an effective mechanism to influence and improve mood in young women. Method: This is a pre-post study. 21 (24 ± 3.92 years) young women participated in a physical HIIT training session for 45 minutes on one occasion. The Positive and Negative Affect Scale (PANAS) was measured directly before and after the HIIT intervention to assess mood. The General Anxiety Disorder-7 (GAD-7) was used for the evaluation of anxiety symptoms and in relation to the PANAS to see if the effect of the training session was related to initial perceived anxiety level. To compare mood pre- and post-intervention, data were analyzed with paired T-test. Two linear regression analyzes were performed to see if initial perceived anxiety was related to post scores on the PANAS. Results: Participants' mean positive affect increased by 12.5% (39.71 ± 3.78) after the training and mean negative affect decreased by 3.4% (13 ± 2.89). The exercise intervention induced significant increases in (PANAS) positive affect (p= <0.0001) and significant decreases in negative affect (p= <0.008). Higher levels of anxiety correlated with higher levels of post-intervention positive affect but this relationship was weak (0.317) and not significant (p= <0.081). For negative affect, the direction of the relationship was negative (-0.121) but this was also not significant (p= <0.3). Conclusion: This study examined the effects of high-intensity exercise on young women's mood and possible associations between perceived anxiety and post-exercise mood. The results indicate that HIIT training in a group has a positive effect on mood in the short term, and a trend was observed between higher initial anxiety level and higher positive mood after exercise, although a weak relationship. These results suggest that physical activity can promote feelings of well-being in the short term
The relationship between benevolence and attitudes towards preventive behaviour during the COVID-19 pandemic in Sweden
No full textAim. The COVID-19 pandemic initially required sustainable behavioural changes to mitigate the spread of the infection. Thus, people were requested to comply with the recommendations given by the authorities. However, adherence to the recommendations varied considerably. Therefore, it is important to understand the driving forces behind such behavioural change. This study aims to investigate how people's willingness to comply with preventive behaviour, including vaccination, during a pandemic is related to the prosocial emotion of benevolence, the inclination to do well. Subject and methods. An online cross-sectional study was performed (N = 1014). Result. The result showed a significant correlation for the whole study population between how well they followed the recommendations (M = 4.16, S = 0.92) and the levels of benevolence (M = 3.58, S = 0.74) r = 0.22, p = < 0.001. Conclusion. Further, there was a significant correlation between altruistic motives and compliance with recommendations, including the view on taking the vaccine. Our findings add to the concept that prosocial orientation during the COVID-19 pandemic increases compliance with preventive behaviour
Långvarig Smärta och Fysisk Aktivitet : En kvantitativ tvärsnittsstudie om förändringar i fysisk aktivitet och dess samband med stillasittande, trötthet och upplevd smärta
No full textSyfte och frågeställningar Syftet med uppsatsen var att undersöka om den fysiska aktivitetsnivån förändrats efter att man fått en diagnos som innebär långvarig smärta. Samt om det finns något samband mellan förändrad fysisk aktivitetsnivå och stillasittande, trötthet respektive upplevd smärta. Två frågeställningar har undersökts: Har den fysiska aktivitetsnivån förändrats efter att man fått en diagnos som innebär långvarig smärta? Finns det något samband mellan stillasittande, trötthet, upplevd smärta och förändrad fysisk aktivitetsnivå för denna grupp? Metod En kvantitativ tvärsnittsstudie genomfördes för att besvara frågeställningarna. Data samlades in genom en webbenkät. Studien riktade sig till individer som lever med någon typ av långvarig smärta och var bosatt i Sverige. Enkäten bestod av olika delar som syftade till att fråga om individernas fysiska aktivitetsnivå (Socialstyrelsen), upplevda smärta (RAND-36), trötthet (Fatigue Assesment Scale), och stillasittande (Socialstyrelsen). Data sammanställdes samt analyserades i statistikprogrammet IBM SPSS. För att analysera skillnader mellan fysisk aktivitetsnivå innan och efter diagnos genomfördes ett t-test. Korrelationsanalyser genomfördes för att studera samband. Resultat Resultatet baserades på 275 enkätsvar. Det fanns en statistisk signifikant minskning i den fysiska aktivitetsnivån efter att man fått en diagnos inom långvarig smärta (p <0,001, r = 0,375). Resultaten visade att det fanns ett negativt signifikant samband mellan ökat stillasittande och minskad fysisk aktivitetsnivå (p <0,001, r = -0,213). Negativt signifikant samband sågs även mellan ökad trötthet och minskad fysisk aktivitetsnivå (p <0,001, r = -0,285). Ett signifikant positivt samband fanns mellan ökad fysisk aktivitetsnivå och minskad smärta (p <0,001, r = 0,282). Slutsats En diagnos inom långvarig smärta förändrar den fysiska aktivitetsnivån. Denna förändring var en statistisk signifikant minskning. Stillasittande, trötthet och upplevd smärta är variabler som alla korrelerar med en förändrad fysisk aktivitetsnivå. Purpose The purpose of this study was to investigate whether the level of physical activity changes after receiving a diagnosis involving chronic pain, and if there is any correlation between changes in physical activity level and sedentary behavior, fatigue, and perceived pain. Two research questions were explored: Has the level of physical activity changed after receiving a diagnosis involving chronic pain? Is there any correlation between sedentary behavior, fatigue, perceived pain, and changes in physical activity level for this group? Method A quantitative cross-sectional study was conducted to address the research questions. Data were collected through an online survey targeting individuals living with chronic pain in Sweden. The survey consisted of various sections aimed at querying individuals’ physical activity levels (Socialstyrelsen), perceived pain (RAND-36), fatigue (Fatigue Assessment Scale), and sedentary behavior (Socialstyrelsen). Data were compiled and analyzed using the statistical software IBM SPSS. A t-test was conducted to analyze differences in physical activity levels before and after diagnosis. Correlation analyses were performed to study associations. Results The results were based on 275 survey responses. There was a statistically significant decrease observed in physical activity level after receiving a diagnosis of chronic pain (p <0.001, r = 0.375). The results indicated a negative significant correlation between increased sedentary behavior and decreased physical activity levels (p <0.001, r = -0.213). Negative significant correlations were also observed between increased fatigue and decreased physical activity levels (p <0.001, r = -0.285). A significant positive correlation was found between increased physical activity levels and decreased perceived pain (p <0.001, r = 0.282). Conclusion A diagnosis involving chronic pain changes the level of physical activity, with a statistically significant decrease observed. Sedentary behavior, fatigue, and perceived pain are variables all correlating with changes in physical activity level.
Kan plyometrisk träning påverka riktningsförändringar på ishockeymålvakter? : En åtta veckors träningsintervention på juniorishockeymålvakter
No full textAim The purpose of this study is to investigate whether plyometric training improves ice hockey goalies' change of direction (COD) at junior level on-ice. The study is based on the following question: Does the COD of ice hockey goalies improve after an eight-week training intervention consisting of plyometric training?Null hypothesis: Plyometric training does not improve COD for junior ice hockey goaltenders. Method The questions in the study were by conducting a training study with male ice hockey goalies (n=13) at the junior level (born 2004-2008). Based on randomization, the participants in the study were be divided into two groups, a training group (n-7) and a control group (n-6). Before and after the training intervention, an on-ice test will be carried out by all participants. After that, the intervention group will perform plyometric training, twice per week during an eight-week period. The effect of the training intervention will be evaluated by comparing the groups' results (before and after the intervention) to investigate whether there are differences between the intervention and control groups. Result The results showed that the training group's mean value (3.82 seconds) improved more than the control group's mean value (4.03 seconds), however, the difference between the groups was not statistically significant (p=0.05), thus the null hypothesis is retained in the study. The results show that there is a tendency for improvement (p=0.082), thus a low assumption of the null hypothesis. The significance level was set at p <0.05 and the tendency level values were set at 0.05<p<0.1. Conclusion There was a tendency towards improvement in COD for the training group, however, the differences between the training group and the control group were not significant at post-test. The results show that plyometric training tends to have a positive effect on COD, which can be used as a framework for players and coaches as well as useful as a basis for future training planning for ice hockey goalies at junior level.Syfte Syftet med denna studie är att undersöka om plyometrisk träning förbättra rishockeymålvakters change of direction (COD) på juniornivå on-ice. Studien utgår ifrånföljande frågeställning: Förbättras ishockeymålvakters COD efter en åtta veckorsträningsintervention bestående av plyometrisk träning? Nollhypotes; Plyometrisk träning förbättrar inte COD för ishockeymålvakter på juniornivå. Metod Frågeställningarna i studien besvarades genom att en träningsstudie genomfördes med manliga ishockeymålvakter (n=13) på juniornivå (födda 2004–2008). Utifrån randomiseringkommer deltagarna i studien delas in i två grupper, en träningsgrupp (n-7) och en kontrollgrupp (n-6). Innan och efter träningsinterventionen kommer ett on-ice test genomförasav samtliga deltagare. Därefter kommer träningsgruppen genomföra plyometrisk träning, två gånger per vecka under en åttaveckorsperiod. Effekten av träningsinterventionen kommer attutvärderas genom att jämföra gruppernas resultat (före och efter interventionen) för att undersöka eventuella skillnader mellan tränings-, och kontrollgruppen. Resultat Resultaten visade att träningsgruppens medelvärde (3,82 sekunder) förbättrades mer än kontrollgruppens medelvärde (4,03 sekunder), dock var skillnaden mellan grupperna inte statistisk signifikant (p=0,05). Resultaten visar att det finns tendens till förbättring (p=0,082),d ärmed ett lågt antagande om nollhypotesen. Signifikants nivån sattes till p <0,05 och värdenaför tendensnivån sattes till 0,05<p <0,1. Slutsats Det fanns tendens till förbättring av COD för träningsgruppen, dock var skillnaderna mellanträningsgruppen och kontrollgruppen inte statistiskt signifikanta vid eftertestet. Resultatenvisar att plyometrisk träning har tendens till positiv påverkan på COD, vilket kan användassom ett ramverk för spelare och tränare samt vara användbara som grund i framtida träningsplanering för ishockeymålvakter på juniornivå
Ledares syn på att ungdomar slutar med ishockey i tidig ålder
No full textSyfte Syftet med studien är att få en inblick i ledarnas syn på vilka faktorer som påverkar att ungdomar slutar med hockeyn i tidig ålder. Frågeställningarna har varit: - Hur ser ledare på att ungdomar slutar med ishockey i unga år? - Vad tror ledare är orsaken till att unga lämnar ishockeyn? - Hur arbetar ledare för att behålla ungdomarna? Metod Fem ledare med lång erfarenhet inom ungdomsishockeyn har intervjuats med öppna frågor. Ledarna finns inom stora ishockeyföreningar i olika delar av landet. Analysen har baserats på flera teoretiska ramverk som KASAM om människans behov att känna sammanhang för att fungera bra som person, Self-determination Theory (SDT) som försöker förklara vad som krävs för att människor skall prestera bra samt teorin hur ungdomar sätter mål (Achievement Goal Theory, AGT) som skiljer på uppgiftsorienterade mål som bedöms efter egen framgång och egoorienterade mål som bedöms efter andras framgångar. Analysen har strukturerats efter vad som är centralt för att en människa skall må bra - kompetens, relationer och autonomi. Resultat Studien visade att ledarna vill att spelarna skall stanna kvar och för samtal med den spelare som har tankar på att sluta för att finna ut skälet till avhoppet och om något i lagets verksamhet bör ändras. Ledaren anser också att olika skäl finns för att spelare lämnar laget som till exempel att de har kommit in i ett nytt skede i livet med nya kamrater och nya intressen eller att de inte känner att de har tillräcklig kompetens. Många nämner att den årliga uttagningen till TV-pucken påverkar genom att de som inte blir uttagna känner sig mindre kompetenta. Ledarna har Ishockeyförbundets riktlinjer i Hemmaplansmodellen som vägledning och arbetar med ett transformativt ledarskap för att behålla och utveckla spelarna. Teman i ledarnas arbete är behovet av kompetens, goda relationer och autonomi hos spelarna. Slutsats Ledarna vill behålla spelarna och det är olika orsaker till att vissa spelare slutar som brist på kompetens och andra intressen. Ledarna arbetar med ett transformativt ledarskap för att behålla spelarna. Om en spelare börja fundera på att lämna laget anstränger sig ledarna för att de skall stanna kvar. Om spelaren ändå beslutar att sluta har de respekt för det. Ledarna strävar efter en lugn och trygg miljö samt främjar i sitt arbete kompetens hos spelarna, goda relationer - i laget och mellanmänskligt- samt spelarnas autonomi.The aim of this study was to find out how leaders in youth ice hockey in Sweden feel about dropouts, what the reason for dropouts are and how the leaders act to make the players stay in the team. Five experienced leaders in youth ice hockey in different clubs in Sweden were interviewed in semi-structured interviews. The answers were analyzed based on three theoretical frameworks; KASAM, Self-determination Theory and Achievement Goal Theory. The study shows that the leaders want to keep the players in the team and have talks with those who have thoughts about leaving the team to find out reasons for this, including possible wishes for changes in the teamwork. The leaders have found that the players have different reasons for their decision to leave the team such as a new stage in life with new mates and new interests or lack of feeling competent enough. Many leaders mention that the yearly selection of players to a big competition in Sweden for 15-year-old players make those, who are not selected, feel less competent. The leaders work according to guidelines from the Swedish Ice Hockey Association with a transformative leadership style to foster competence, relatedness and autonomy. The conclusion is that the leaders want to keep the players and that there are various reasons for dropouts including other interests and lack of competence. If a player shows interest to dropout the leaders try to keep them but if the player persists in leaving this is respected by the leaders. The leaders strive towards a safe and secure environment in the team and foster competence, relatedness and autonomy.Ämneslärarprogrammet, Specialidrott</p
Plasma markers of neurodegeneration, latent cognitive abilities and physical activity in healthy aging.
No full textBlood-based biomarkers of neurodegeneration demonstrate great promise for the diagnosis and prognosis of Alzheimer's disease. Ultra-sensitive plasma assays now allow for quantification of the lower concentrations in cognitively unimpaired older adults, making it possible to investigate whether these markers can provide insight also into the early neurodegenerative processes that affect cognitive function and whether the markers are influenced by modifiable risk factors. Adopting an exploratory approach in 93 healthy older adults (65-75 years), we used structural equation modelling to investigate cross-sectional associations between multiple latent cognitive abilities (working memory, episodic memory, spatial and verbal reasoning) and plasma amyloid beta (Aβ42/Aβ40 ratio), phosphorylated-tau 181 (ptau-181), glial fibrillary acidic protein (GFAP), and neurofilament light (NfL), as well as the influence of device-measured habitual physical activity on these associations. The results showed that NfL was negatively associated with working memory, and that NfL interacted with moderate-to-vigorous physical activity in its association with episodic memory. The study has thereby demonstrated the potential of neurodegenerative plasma markers for improving understanding of normative cognitive aging and encourages future research to test the hypothesis that high levels of NfL, indicative of white matter pathology, limit the beneficial effect of physical activity on episodic memory in healthy aging
Reliability in Novel Field-Based Fitness Measurements and Postexercise Scores from a Physical Fitness Test Battery in Older Adults.
No full textINTRODUCTION: Physical fitness is strongly associated with daily physical function, health, and longevity in older adults. Field-based tests may provide a reasonable alternative compared to advanced laboratory testing. Separating postexercise test scores from reactivity measurements requires sufficient test-retest reliability. Postexercise test scores with reliability analyses of field-based fitness tests in older adults are lacking. The present study aimed to examine the test-retest reliability of some novel easily accommodated fitness test measurements and compare pretest scores with postexercise results in these tests along with other field-based fitness tests in older adults. METHODS: Totally 1,407 community-dwelling older adults (69% female), x̄ = 71.5 ± 5.0 (65-84 years), performed twelve field-based fitness tests at pretest 1, pretest 2 and a posttest after an 8-week exercise period (twice weekly 1 h of combined strength and aerobic training). T tests, intra-class correlation, limits of agreement, standard error of measurement, and coefficient of variance were performed between pre-1 and pre-2 tests, and repeated measures ANOVA and partial eta squared effect size for postexercise differences for men and women in 5-year age groups ranging from 65 to 84 years. RESULTS: Between pre-1 and pre-2 tests a significant difference was noted in some of the novel fitness test measurements but generally not, e.g., in isometric trunk flexion and step-up height on either leg among all sex and age groups. In most of these novel fitness test measurements, no significant differences occurred between the two pretests. Examples of results from the pre-2 test to the posttest were isometric trunk flexion 45° endurance and isometric trunk extension endurance improved significantly for both sexes in age groups 65-74 years. Women, but not men, improved the maximal step-up height for both legs in most age groups. The speed in the 50 sit-to-stand improved significantly for most age groups in both sexes. Six-min walk distance improved significantly for most age groups in women but among men only in 65-69 years. In the timed-up-and-go test, significant improvements were seen for all age groups in women and in men 70-79 years. No postexercise improvements were generally observed for grip strength or balance. CONCLUSIONS: In most of the novel fitness test measures, no significant difference was noted between the two pretests in the assessed sex and age groups. Results after the 8-week exercise period varied between sex and age groups, with significant improvements in several of the twelve studied fitness tests. These findings may be valuable for future projects utilizing easily accommodated physical fitness tests in older adults
Negative associations between step-up height and waist circumference in 8-year-old children and their parents.
No full textAIM: To study cross-sectional relationships between step-up height and waist circumference (WC), a potential proxy for sarcopenic obesity, in Swedish children and parents. METHODS: Participants were recruited from Swedish schools in disadvantaged areas in 2017. Height, body weight, WC and maximal step-up height were measured in 67 eight-year-old children and parents: 58 mothers, with a mean age of 38.5 and 32 fathers, with a mean age of 41.3. Sedentary time and physical activity were registered by an accelerometer. Associations between maximal step-up height and WC were analysed using Pearson's correlation and adjusted linear regression. RESULTS: Abdominal obesity, WC ≥ 66 centimetres (cm) in children, ≥88 cm in women and ≥102 cm in men, was observed in 13% and 35% of girls and boys, and in 53% and 34% among mothers and fathers, respectively. Negative associations between maximal step-up height and WC were found for children (r = -0.37, p = 0.002) and adults (mothers r = -0.58, p < 0.001, fathers r = -0.48, p = 0.006). The associations remained after adjustments for height, body mass index (BMI) and physical activity in adults. Reduced muscle strength clustered within families (r = 0.54, p < 0.001). CONCLUSION: Associations between reduced muscle strength and abdominal obesity were observed in children and parents. Sarcopenic obesity may need more attention in children. Our findings support family interventions