A Reliable and Robust Method of Measuring Male Pelvic Floor Muscle Volume Using Three-dimensional Computed Tomography.

Objectives: The pelvic floor muscle (PFM) plays a major role in sexual and urinary functions. No objective method exists to measure the PFM in male. This study evaluated the reliability of male PFM volume using three-dimensional computed tomography (3D-CT).

Association between exercise habits in adolescence and old age and the risk of mild cognitive impairment: the Bunkyo health study.

Background: Exercise in adolescence and old age improves cognitive function in older adults, but the combined effect of exercise habits in both periods is controversial. This study aimed to clarify the relationship between exercise habits in adolescence and old age and mild cognitive impairment (MCI) and to compare regional brain volumes and blood biochemical markers associated with cognitive function in older adults.

Methods: Baseline data of 1615 participants aged 65-84 years from the Bunkyo Health Study were analyzed.

Masseter Muscle Volume and Its Association with Sarcopenia and Muscle Determinants in Older Japanese Adults: the Bunkyo Health Study.

Aim: Sarcopenia has been with a decrease in masseter muscle (MM) thickness in high-risk older populations. However, the relationship between sarcopenia and determinants of MM volume (MMV) in the general elderly population remains unclear.

Method: In a cross-sectional study of 1,484 older adults in Tokyo, we evaluated MMV using 3D MRI scanning, appendicular skeletal muscle mass (ASMM), handgrip strength, dietary intake, smoking, insulin-like growth factor 1 (IGF-1) levels, and the ACTN3 R577X polymorphism.

Sex-specific impact of rs1260326 polymorphism on metabolic traits in an older Japanese population: the Bunkyo Health Study.

Background: Metabolic syndrome involves health problems influenced by aging and genetics. The glucokinase regulatory protein () rs1260326 polymorphism (Leu446) is associated with metabolic traits. This study explores the impact of the GCKR rs1260326 polymorphism on metabolic traits in older Japanese with focusing on sex-specific differences.

Dietary characteristics of urban community-dwelling older adults with low muscle mass: the bunkyo health study: a cross-sectional study.

Background: With the aging of the population worldwide, extending healthy life expectancy is an urgent issue. Muscle mass has been reported to be associated with physical independence and longevity. This study aimed to investigate the characteristics of food intake in urban community-dwelling older adults with low muscle mass.

Evaluation of mitral chordae tendineae length using four-dimensional computed tomography.

Background: Mitral valvuloplasty using artificial chordae tendineae represents an effective surgical approach for treating mitral regurgitation. Achieving precise measurements of artificial chordae tendineae length (CL) is an important factor in the procedure; however, no objective index currently exists to facilitate this measurement. Therefore, preoperative assessment of CL is critical for surgical planning and support.

Playing basketball and volleyball during adolescence is associated with higher bone mineral density in old age: the Bunkyo Health Study.

Exercise is beneficial for increasing areal bone mineral density (aBMD) in adolescence and maintaining it in old age. Moreover, high-impact sports are more effective than low-impact sports in increasing aBMD. This study aimed to determine the types of adolescent sports played in school-based sports clubs associated with aBMD in old age.

Effects of exercise habits in adolescence and older age on sarcopenia risk in older adults: the Bunkyo Health Study.

Background: Sarcopenia, defined as an age-associated loss of skeletal muscle mass and function, is a major risk factor for requiring long-term care. Because physical activity in adolescence and older age enhances peak muscle function in youth and prevents muscle function decline in older age, older adults with exercise habits during both periods may be at a lower risk for sarcopenia. We investigated the relationship between exercise habits in adolescence and older age and sarcopenia and its components in community-dwelling older Japanese adults.

Association of Genotypes and Alcohol Intake with Dietary Patterns: The Bunkyo Health Study.

Dietary habits are associated with various diseases and assessed by dietary patterns (DPs). Since the genotype is correlated with alcohol and several food preferences, this genotype is probably associated with DPs. In this cross-sectional study of 1612 elderly adults, we investigated the effects of the genotype on DPs and the mediating role of alcohol intake.

Validity of Diaphragm Volume Measurements Using Three-Dimensional Computed Tomography.

Objectives: The aim of this study was to measure the diaphragm volume using three-dimensional computed tomography (3D-CT) and verify its validity.

Design: This was a retrospective study of existing samples.

Methods: Participants comprised five male patients, aged 65-70 years, who underwent preoperative chest CT (with a slice thickness of 0.

Associations of Exercise Habits in Adolescence and Old Age with Risk of Osteoporosis in Older Adults: The Bunkyo Health Study.

We investigated effects of exercise habits (EHs) in adolescence and old age on osteoporosis prevalence and hip joint and lumbar spine bone mineral density (BMD). Body composition and BMD in 1596 people aged 65-84 years living in Bunkyo-ku, Tokyo, were measured using dual-energy X-ray absorptiometry. We divided participants into four groups by a combination of EHs in adolescence and old age: none in either period (None-None), only in adolescence (Active-None), only in old age (None-Active), and in both periods (Active-Active).