STUDY DESIGN: Retrospective case series. PURPOSE: To calculate the prevalence of L5-S1 intervertebral disc degeneration (IDD) by evaluating gynecological disease findings, obtained by pelvic magnetic resonance imaging (MRI), and reveal the risk factors for IDD by analyzing its relationship with age, sacral structure, body mass index (BMI), number of deliveries, and intrapelvic space-occupying lesions. OVERVIEW OF LITERATURE: Age, obesity, height, smoking history, occupation, and lumbosacral structure are reportedly the main factors of lumbar IDD. However, in women, the relationship of IDD with obstetric and gynecological history is unclear. METHODS: The presence of L5-S1 IDD was evaluated on sagittal T2-weighted pelvic MRI during gynecological evaluations in 660 Japanese women. We measured the sacral table angle (STA), sacral kyphosis angle (SKA), and intrapelvic space-occupying lesion size. Age, height, weight, BMI, number of deliveries, lumbosacral structure, size of space-occupying lesions, and presence of uterine leiomyoma based on medical records were compared between the IDD-positive and IDD-negative groups. RESULTS: Lumbosacral IDD was observed in 405 cases (61.4%), and its prevalence increased with age. Differences in age, height, weight, BMI, and number of deliveries between the IDD-positive and -negative groups were significant, but differences in STA, SKA, and presence of uterine leiomyoma and space-occupying lesion size were not. Logistic regression analysis indicated that age, BMI, and STA were risk factors for lumbosacral IDD. CONCLUSIONS: Age is the biggest risk factor for lumbosacral IDD in Japanese women, with BMI and STA also contributing to its development. However, SKA and obstetric and gynecological history were not significantly involved.
Asian Continental Ancestry Group* ; Body Mass Index ; Female ; Humans ; Intervertebral Disc Degeneration* ; Kyphosis ; Leiomyoma ; Logistic Models ; Magnetic Resonance Imaging* ; Medical Records ; Obesity ; Occupations ; Prevalence ; Reproductive History ; Retrospective Studies ; Risk Factors ; Smoke ; Smoking

This cross-sectional study examines the association between coping with past ankle sprain, and current physical activity levels and sedentary times. It included a total of 1,464 male soccer players, who participated in the 6th Senior Soccer Festival in Shizuoka in 2017. A self-administered questionnaire was conducted on the day of the festival and 567 subjects responded (38.7% response rate). Participants answered questions regarding the coping with past ankle sprain, such as whether they had first aid treatment (yes/no), the type of initial treatment facilities (6 categories), and their most frequented facilities (5 categories). Additionally, the International Physical Activity Questionnaire Short Form was used to obtain information on current physical activity level and sedentary time. We compared the mean values of physical activity levels and sedentary times with the first aid treatment, initial treatment facilities and most frequented facilities answers, respectively. The mean age was 64.7 years. Physical activity level was associated with first aid treatment (yes: 3860.3 Metabolic equivalents (METs)/min/week; no: 3082.0 METs/min/week) (p=0.033). Sedentary time was also associated with first aid treatment (yes: 265.4 min/day; no: 321.3 min/day) (p=0.014). Initial treatment facilities and most frequented facilities were not associated with physical activity levels or sedentary times. Our study showed that those who had received first aid treatment had high physical activity levels and low sedentary time.