LOW BACK PAIN ESTIMATES IN PROFESSIONAL SOCCER: A SYSTEMATIC REVIEW AND META-ANALYSIS.

Objective: To evaluate the epidemiological and clinical characteristics of low back pain (LBP) in adult professional soccer players. Methods: Systematic review and meta-analysis. Results: The review included 44 studies. The pooled prevalence of LBP during ≤ 1 season was 1% (95%CI = 0-4%) in men. The pooled point prevalence of LBP was 25% (95%CI = 16-36%) in men and 28% (95%CI = 20-37%) in women. The pooled past-year prevalence of LBP was 34% (95%CI = 24-44%) in men. The pooled lifetime prevalence of LBP was 32% (95%CI = 25-39%) in men and 50% (95%CI = 32-69%) in women. The pooled frequency of LBP/total number of injuries was 2% (95%CI = 1-3%) in men and 4% (95%CI = 2-5%) in women. The pooled incidence rate of LBP/1,000 player-hours of exposure was 0.30 (95%CI = 0.17- 0.53) in men and 0.32 (95%CI = 0.06 -1.87) in women. The recurrence of LBP ranged from 3% to 63% in men. The intensity of LBP ranged from 1.68 (2.39) to 4.87 (2.14) points on a 0-10 scale (minimum = 0 and maximum = 8 points). The severity of LBP (days absent from professional activities due to pain) ranged from 2 (0) to 10 (19) days (minimum = 1 and maximum = 28 days). Conclusion: Adult elite soccer players have a substantial prevalence of LBP. The frequency and incidence of LBP (compared with other conditions and sports) seems to be low. Estimates of the recurrence, intensity, and severity of LBP are uncertain. Level of Evidence II, Systematic Review of Level II Studies.

Objetivo: Investigar as características epidemiológicas e clínicas da lombalgia em jogadores profissionais de futebol. Métodos: Revisão sistemática e metanálise. Resultados: A revisão incluiu 44 estudos. A prevalência combinada de lombalgia em até uma temporada foi de 1% (IC95% = 0-4%) em homens. A prevalência pontual combinada de lombalgia foi de 25% (IC95% = 16-36%) em homens e 28% (IC95% = 20-37%) em mulheres. A prevalência combinada de lombalgia no último ano foi de 34% (IC95% = 24-44%) em homens. A prevalência combinada de lombalgia ao longo da vida foi de 32%(IC95% = 25-39%) em homens e 50% (IC95% = 32-69%) em mulheres. A frequência combinada de lombalgia/número total de lesões foi de 2% (IC95% = 1-3%) em homens e 4% (IC95% = 2-5%) em mulheres. A taxa de incidência combinada de lombalgia/1.000 jogador-horas de exposição foi de 0,30 (IC95% = 0,17-0,53) em homens e 0,32 (IC95% = 0,06-1,87) em mulheres. A recorrência de lombalgia variou entre 3-63% em homens. A intensidade da lombalgia variou entre 1,68 (2,39)-4,87 (2,14) pontos em uma escala de 0-10 (mínimo = 0; máximo = 8 pontos). A gravidade da lombalgia (ausência das atividades profissionais devido à dor) variou entre 2 (0)-10 (19) dias (mínimo = 1; máximo = 28 dias). Conclusão: Jogadores de futebol profissional apresentam alta prevalência de lombalgia substancial. A frequência e a incidência da lombalgia parecem ser baixas comparadas a outros esportes e condições. As estimativas de recorrência, intensidade e gravidade da lombalgia são incertas. Nível de Evidência II, Revisão Sistemática de Estudos de Nível II.

Low back pain estimates in professional soccer: a systematic review and meta-analysis / Estimativas da dor lombar no futebol profissional: revisão sistemática e metanálise

ABSTRACT Objective: To evaluate the epidemiological and clinical characteristics of low back pain (LBP) in adult professional soccer players. Methods: Systematic review and meta-analysis. Results: The review included 44 studies. The pooled prevalence of LBP during ≤ 1 season was 1% (95%CI = 0-4%) in men. The pooled point prevalence of LBP was 25% (95%CI = 16-36%) in men and 28% (95%CI = 20-37%) in women. The pooled past-year prevalence of LBP was 34% (95%CI = 24-44%) in men. The pooled lifetime prevalence of LBP was 32% (95%CI = 25-39%) in men and 50% (95%CI = 32-69%) in women. The pooled frequency of LBP/total number of injuries was 2% (95%CI = 1-3%) in men and 4% (95%CI = 2-5%) in women. The pooled incidence rate of LBP/1,000 player-hours of exposure was 0.30 (95%CI = 0.17- 0.53) in men and 0.32 (95%CI = 0.06 -1.87) in women. The recurrence of LBP ranged from 3% to 63% in men. The intensity of LBP ranged from 1.68 (2.39) to 4.87 (2.14) points on a 0-10 scale (minimum = 0 and maximum = 8 points). The severity of LBP (days absent from professional activities due to pain) ranged from 2 (0) to 10 (19) days (minimum = 1 and maximum = 28 days). Conclusion: Adult elite soccer players have a substantial prevalence of LBP. The frequency and incidence of LBP (compared with other conditions and sports) seems to be low. Estimates of the recurrence, intensity, and severity of LBP are uncertain. Level of Evidence II, Systematic Review of Level II Studies.

RESUMO Objetivo: Investigar as características epidemiológicas e clínicas da lombalgia em jogadores profissionais de futebol. Métodos: Revisão sistemática e metanálise. Resultados: A revisão incluiu 44 estudos. A prevalência combinada de lombalgia em até uma temporada foi de 1% (IC95% = 0-4%) em homens. A prevalência pontual combinada de lombalgia foi de 25% (IC95% = 16-36%) em homens e 28% (IC95% = 20-37%) em mulheres. A prevalência combinada de lombalgia no último ano foi de 34% (IC95% = 24-44%) em homens. A prevalência combinada de lombalgia ao longo da vida foi de 32%(IC95% = 25-39%) em homens e 50% (IC95% = 32-69%) em mulheres. A frequência combinada de lombalgia/número total de lesões foi de 2% (IC95% = 1-3%) em homens e 4% (IC95% = 2-5%) em mulheres. A taxa de incidência combinada de lombalgia/1.000 jogador-horas de exposição foi de 0,30 (IC95% = 0,17-0,53) em homens e 0,32 (IC95% = 0,06-1,87) em mulheres. A recorrência de lombalgia variou entre 3-63% em homens. A intensidade da lombalgia variou entre 1,68 (2,39)-4,87 (2,14) pontos em uma escala de 0-10 (mínimo = 0; máximo = 8 pontos). A gravidade da lombalgia (ausência das atividades profissionais devido à dor) variou entre 2 (0)-10 (19) dias (mínimo = 1; máximo = 28 dias). Conclusão: Jogadores de futebol profissional apresentam alta prevalência de lombalgia substancial. A frequência e a incidência da lombalgia parecem ser baixas comparadas a outros esportes e condições. As estimativas de recorrência, intensidade e gravidade da lombalgia são incertas. Nível de Evidência II, Revisão Sistemática de Estudos de Nível II.

The association between cardiovascular risk factors and major cardiovascular diseases decreases with increasing frailty levels in geriatric outpatients.

BACKGROUND: Frailty marks a process of increasing dysregulation of physiological systems which increases the risk of adverse health outcomes. This study examines the hypothesis that the association between multiple cardiovascular risk factors (CVRF) and cardiovascular diseases (CVD) becomes stronger with increasing frailty severity. METHODS: Cross-sectional analysis of 339 older adults (55.2% women; aged 75.2 ±â€¯9.1 years) from an outpatient geriatric clinic from a middle-income country. The frailty index (FI) was calculated as the proportion of 30 possible health deficits. We assessed hypertension, diabetes, obesity, dyslipidemia, sedentarism and smoking as CVRF (determinants) and myocardial infarction, stroke, heart failure as CVD. Poisson regression models adjusted for age, sex, and education was applied to estimate the association between frailty as well as CVRF (independent variables) with CVD (dependent variable). RESULTS: Of the 339 patients, 18,3% were frail (FI ≥ 0.25) and 32.7% had at least one CVD. Both frailty and CVRF were significantly associated with CVD (PR = 1.03, 95% CI 1.01 to 1.05; p = 0.001, and PR = 1.46, 95% 1.24 to 1.71; p < 0.001, respectively) adjusted for covariates. The strength of the association between CVRF and CVD decreased with increasing frailty levels, as indicated by a significant interaction term of frailty and CVRF (p < 0.001). CONCLUSION: Frailty and CVRF are both associated with CVD, but the impact of CVRF decreases in the presence of frailty. When confirmed in longitudinal studies, randomized controlled trials or causal inference methods like Mendelian randomization should be applied to assess whether a shift from traditional CVRF to frailty would improve cardiovascular outcome in the oldest old.