Dataset Information

MRI analysis of and factors related to knee injuries in amateur marathon runners.

ABSTRACT:

Background

Marathons are the most challenging form of running, and amateur athletes may be more prone to injury due to a lack of professional knowledge and instruction in running.

Purpose

To analyze the MRI manifestations of and factors related to knee injuries in amateur marathon runners.

Subjects

Data were collected from a hospital database of 105 qualified amateur marathon athletes (65 males,40 females), between May 2018 and December 2021.

Field strength/sequence

1.5T MR: sagittal fs-PDWI, sagittal T1WI and sagittal 3D-DESS sequence.

Assessment

The MRI manifestations of knee joint injury were analyzed and evaluated by two radiologists.

Statistical tests

The inter-observer agreement on MRI readings was analyzed using the kappa coefficient, and binary logistic regression analysis was employed to identify factors associated with knee injuries.

Results

The overall prevalence of knee cartilage lesions, meniscus lesions and bone marrow edema among amateur marathon runners was 45.7%, 72.4%, and 49.5% respectively. Our analysis revealed that older age (OR = 1.135, P<0.001), higher BMI (OR = 1.236, P = 0.044), and slower pace (OR = 2.305, P = 0.017) were associated with increased risk of articular cartilage disease. Furthermore, older age (OR = 1.425, P<0.001) was identified as a risk factor for meniscal lesions, while older age (OR = 1.088, P = 0.002) was bone marrow edema. Notably, no significant correlation was observed between knee joint injuries of amateur marathon athletes and gender or the monthly running distance (P>0.05).

Conclusions

The occurrence of knee injuries among amateur marathon athletes was highly prevalent, with the patellofemoral joint cartilage and posterior horn of medial meniscus being frequently affected areas. Moreover, age, BMI, running years and pace were significant risk factors of knee joint injury.

SUBMITTER: Shen Y

PROVIDER: S-EPMC11232983 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

MRI analysis of and factors related to knee injuries in amateur marathon runners.

Shen Yiying Y Yao Wanzhen W Huang Yi Y Ye Lingxiao L Liu Jie J Liu Mengxiao M Ding Jianping J Zhang Yanjing Y

PloS one 20240709 7

<h4>Background</h4>Marathons are the most challenging form of running, and amateur athletes may be more prone to injury due to a lack of professional knowledge and instruction in running.<h4>Purpose</h4>To analyze the MRI manifestations of and factors related to knee injuries in amateur marathon runners.<h4>Subjects</h4>Data were collected from a hospital database of 105 qualified amateur marathon athletes (65 males,40 females), between May 2018 and December 2021.<h4>Field strength/sequence</h4> ...[more]

PMID: 38980846

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Project description:ContextMale amateur marathon runners represent a unique subset of the population who may be at increased risk of cardiovascular disease (CVD) due to their underlying risk factors and their involvement in vigorous exercise such as marathon running.ObjectiveTo assess the modifiable risk factors (MRFs) of CVD in experienced male amateur marathon runners and health interventions on CVD risk factors.Data sourcesCINAHL, Cochrane Library, Embase, Medline, and SPORTDiscus.Study selectionStudies selected according to the inclusion criteria.Study designSystematic review.Level of evidenceLevel 3.Data extractionThe publication dates included were from June 1, 2008 to February 29, 2020.Published primary epidemiological, observational, randomized controlled trial (RCT) and/or non-RCT studies assessing the MRFs of CVD and health interventions on CVD risk factors in male amateur marathon runners aged ≥18 years and written in the English language were included in the review.ResultsFive studies met the inclusion criteria for analysis. These included male amateur marathon runners (n = 862), aged 42 to 77 years. Hypertension, hyperlipidemia, smoking, and alcohol use were MRFs positively associated with an increased risk of coronary atherosclerosis found in a subset of male marathon runners. No studies examined health interventions on CVD risk factors in any of the included studies. All 5 studies were of good quality from the National Heart, Lung, and Blood Institute quality assessment tools used. The risk of bias was low to moderate.ConclusionThere is a paucity of observational studies evaluating the CVD MRFs. Negative lifestyle behaviors exist within this population despite their engagement in physical exercise through marathon running. Marathon running does not negate the long-term effects caused by past negative lifestyle behaviors. This systematic review identifies that this population may not be aware of their possible risk of atherosclerosis and, consequently, CVD.

Project description:BackgroundMarathon training can reverse bone marrow conversion; however, little is known about the normal bone marrow whole-body diffusion-weighted imaging (WB-DWI) signal characteristics of amateur marathon runners. If marathon training can cause diffuse hyperintensity of bone marrow on WB-DWI is essential for correctly interpreting the diffusion-weighted (DW) images. This study sought to evaluate the WB-DWI signal characteristics of normal bone marrow in amateur marathon runners.MethodsIn this prospective cross-sectional study, 30 amateur marathon runners who had trained for over 3 years for regular or half-marathon races and had a running frequency of more than 20 days a month at a distance of more than 100 km per month from the Chengde Marathon Outdoor Sports Association in Hebei, China, and 30 age- and gender-matched, healthy volunteers (the control group) who had no long-term heavy-load sports history were recruited between April 2021 to September 2021. All the subjects underwent WB-DWI (b-value: 0, 800 s/mm2) and lumbar vertebral transverse relaxation time (T2) mapping. The bone marrow WB-DWI signal characteristics were analyzed visually and statistically by chi-square (χ2) tests. The apparent diffusion coefficient (ADC), DWI signal intensity, and T2 values of the bone marrow were quantitatively and statistically analyzed by the independent sample t-test and Mann-Whitney U test.ResultsNo subjects were excluded from the study. The bone marrow of 30 of the 60 subjects (aged 30-50 years) showed diffuse hyperintensity in the DW images. However, in all 60 subjects, the humeral heads, femoral heads, and great trochanters had low signals. The frequency of diffuse bone marrow DWI hyperintensity was significantly higher in the male amateur marathon runners (50%) than the male controls (5%, P=0.003), but no such significant difference was found between the female amateur marathon runners (100%) and female controls (90%, P>0.99). The DW signal intensity ratios of bone marrow to muscle (SIRBM-muscle) were significantly higher in the male amateur marathon runners than the male controls in the thoracic vertebrae (4.68 vs. 3.57, P=0.021), lumbar vertebrae (4.49 vs. 3.01, P<0.001), sacrum (3.67 vs. 2.62, P=0.002), and hip (3.45 vs. 2.50, P=0.002), but were only significantly higher in the female amateur marathon runners than the female controls in the thoracic vertebrae (7.69 vs. 5.87, P=0.029) and hip (4.76 vs. 3.92, P=0.004). The mean T2 values of the lumbar vertebrae were significantly higher in the male amateur marathon runners than the male controls (116.76 vs. 97.63 ms, P=0.001), but no such significant difference was observed between the female amateur marathon runners and the corresponding controls (118.58 vs. 124.10 ms, P=0.386).ConclusionsMarathon training resulted in diffuse hyperintensity in the bone marrow based on WB-DWI in 50% of the male amateur marathon runners aged 30-50 years. Thus, when WB-DWI is used for bone marrow disease screening, marathon training history should be considered to avoid false-positive diagnoses.

Project description:Endurance athletes have an increased risk of atrial remodeling and atrial arrhythmias. However, data regarding atrial adaptation to physical exercise in non-elite athletes are limited. Even less is known about atrial performance in women. We aimed to elucidate exercise-induced changes in atrial morphology and function in female amateur marathon runners using three-dimensional (3D) echocardiography and two-dimensional (2D) speckle tracking echocardiography (STE). The study group consisted of 27 female (40 ± 7 years) amateur athletes. Right (RA) and left atrial (LA) measures were assessed three times: 2–3 weeks before the marathon (stage 1), immediately after the run (stage 2), and 2 weeks after the competition (stage 3). Directly after the marathon, a remarkable RA dilatation, as assessed by RA maximal volume (RAVmax, 31.3 ± 6.8 vs. 35.0 ± 7.0 ml/m2; p = 0.008), with concomitant increase in RA contractile function [RA active emptying fraction (RA active EF), 27.7 ± 8.6 vs. 35.0 ± 12.1%; p = 0.014; RA peak atrial contraction strain (RA PACS) 13.8 ± 1.8 vs. 15.6 ± 2.5%; p = 0.016] was noticed. There were no significant changes in LA volumes between stages, while LA active EF (34.3 ± 6.4 vs. 39.4 ± 8.6%; p = 0.020), along with LA PACS (12.8 ± 2.1 vs. 14.9 ± 2.7%; p = 0.002), increased post race. After the race, an increase in right ventricular (RV) dimensions (RV end-diastolic volume index, 48.8 ± 11.0 vs. 60.0 ± 11.1 ml/m2; p = 0.001) and a decrease in RV function (RV ejection fraction, 54.9 ± 6.3 vs. 49.1 ± 6.3%; p = 0.006) were observed. The magnitude of post-race RV dilatation was correlated with peak RA longitudinal strain deterioration (r = −0.56, p = 0.032). The measured parameters did not differ between stages 1 and 3. In female amateur athletes, apart from RV enlargement and dysfunction, marathon running promotes transient biatrial remodeling, with more pronounced changes in the RA. Post-race RA dilatation and increment of the active contraction force of both atria are observed. However, RA reservoir function diminishes in those with post-race RV dilation.

Project description:BackgroundFor non-professionally trained athletes, the hyperphysiological stress response induced by marathon exercise may lead to heart fatigue and even cause organic changes such as abnormal ventricular septal thickening. Early detection of abnormal cardiac function in athletes can help prevent adverse cardiovascular events. The purpose of this study was to analyze the left ventricular systolic function (LVSF) of amateur marathon runners using a novel technique called the left ventricular (LV) pressure-strain loop (PSL).MethodsA total of 35 amateur marathon runners and 33 age-matched healthy controls from Hangzhou were enrolled in this cross-sectional study from October 2021 to August 2023. The LV myocardial work (MW) parameters were calculated as the area of the PSL by two-dimensional speckle-tracking echocardiography (2D-STE) and blood pressure. The differences between the structural and functional data of the two groups and the predictive efficacy of each of the MW parameters for LV systolic function were analyzed using receiver operating characteristic (ROC) curves. The correlations between the PSL parameters and conventional echocardiographic parameters were analyzed.ResultsGlobal wasted work (GWW) was higher and global work efficiency (GWE) was lower in the amateur marathon runner group than the control group (P<0.05). The ROC curve analysis showed that the maximum area under the curve (AUC) for GWE was 0.681 [95% confidence interval (CI): 0.551-0.812] with an optimal cut-off value of 96.14%, and a sensitivity and specificity of 75.8% and 62.9%, respectively. The correlation analysis results showed that GCW was associated with increased diastolic interventricular septal thickness (IVSTd) (P<0.05, r=0.379). GWE was related to all conventional echocardiography parameters (P<0.05, r=-0.416, -0.674, -0.393, 0.406, 0.502, and -0.424, respectively). While GWW was correlated with increased IVSTd, LV diastolic posterior wall thickness (LVPWTd), and decreased global longitudinal strain (GLS) (all P<0.05, r=0.352, 0.395, and -0.344, respectively).ConclusionsAmateur marathon runners show potential changes in cardiac structure and systolic function after a period of endurance exercise, which can be assessed using non-invasive MW to evaluate LVSF. LV MW, which incorporates the GLS and afterload conditions, is more sensitive than GLS, and has emerged as a promising parameter for LV systolic functional evaluation.

Dataset Information

MRI analysis of and factors related to knee injuries in amateur marathon runners.

Background

Purpose

Subjects

Field strength/sequence

Assessment

Statistical tests

Results

Conclusions

Publications

MRI analysis of and factors related to knee injuries in amateur marathon runners.

Similar Datasets

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