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1. The Swedish physical activity and fitness cohort born in 1958 - dropout analysis and overview at 36-year follow-up.

Author

Aasa, U., Lundell, S., Barnekow‐Bergkvist, M., Jansson, E., and Westerståhl, M.

Subjects
*BODY composition, *ECOLOGY, *ANTHROPOMETRY, *CHI-squared test, *CONFIDENCE intervals, *EXERCISE tests, *GENETICS, *HEALTH, *LONGITUDINAL method, *MUSCLE strength, *PHYSICAL fitness, *PROBABILITY theory, *QUESTIONNAIRES, *REGRESSION analysis, *RESEARCH funding, *STATISTICAL hypothesis testing, *STATISTICS, *T-test (Statistics), *LOGISTIC regression analysis, *DATA analysis, *SOCIOECONOMIC factors, *STATISTICAL reliability, *AEROBIC capacity, *LIFESTYLES, *HUMAN research subjects, *PHYSICAL activity, *DATA analysis software, *DESCRIPTIVE statistics, *ODDS ratio, *MANN Whitney U Test
Abstract

The main aim of the Swedish physical activity and fitness cohort study ( SPAF-1958) was to describe physical fitness, physical activity, health, and lifestyle across part of the lifespan, and to assess the influences on these factors from the environment, personal factors, and genetics. There is inevitable dropout from longitudinal studies, and it may be systematic. The aim of this first paper of the second follow-up of SPAF-1958 was to provide a dropout analysis to consider to what extent the participants, at 52 years of age, remain a representative sample of the original adolescent study population. Additional aims were to provide an overview of the study protocol and the ongoing study population. Ongoing study participants in SPAF born in 1958 were, at the second follow-up at the age of 52, still representative of the study cohort in terms of sex, adolescent geographical area, upper secondary school program, adolescent body composition, muscular strength, and muscular endurance. However, a higher physical activity and, among women, a higher aerobic capacity in adolescence decreased the risk for dropout. It is important when interpreting results from longitudinal studies to adjust for the systematic dropout that could bias the conclusions drawn from the results. [ABSTRACT FROM AUTHOR]

Published
2017
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2. Prevalence and severity of hip and groin pain in sub-elite male football: a cross-sectional cohort study of 695 players.

Author

Thorborg, K., Rathleff, M. S., Petersen, P., Branci, S., and Hölmich, P.

Subjects
*CONFIDENCE intervals, *FOOTBALL, *HIP joint, *PAIN, *PROBABILITY theory, *QUESTIONNAIRES, *STATISTICS, *SAMPLE size (Statistics), *DATA analysis, *PAIN measurement, *CROSS-sectional method, *SEVERITY of illness index, *DISEASE duration, *GROIN pain, *MANN Whitney U Test, *KRUSKAL-Wallis Test, *ONE-way analysis of variance
Abstract

The purpose of this study was twofold: (a) to investigate the prevalence of hip and groin pain in sub-elite male adult football in Denmark and (b) to explore the association between prevalence and duration of hip and groin pain in the previous season with the Copenhagen Hip and Groin Outcome Score ( HAGOS) in the beginning of the new season. In total 695 respondents from 40 teams (Division 1-4) were included. Players completed in the beginning of the new season (July-Sept 2011) a self-reported paper questionnaire on hip and/or groin pain during the previous season and HAGOS. In total 49% (95% CI: 45-52%) reported hip and/or groin pain during the previous season. Of these, 31% (95% CI: 26-36%) reported pain for >6 weeks. Players with the longest duration of pain during the previous season had the lowest HAGOS scores, when assessed at the beginning of the new season, P < 0.001. This study documents that half of sub-elite male adult football players report pain in the hip and/or groin during a football season. The football players with the longest duration of pain in previous season displayed the lowest HAGOS scores in the beginning of the new season. [ABSTRACT FROM AUTHOR]

Published
2017
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