Agreement between 2D Visual- and 3D Motion Capture-based Assessment of Foot Strike Pattern.

Background: Foot strike patterns during running are typically categorized into two types: non-rearfoot strike (NRFS) and rearfoot strike (RFS), or as three distinct types: forefoot strike (FFS), midfoot strike (MFS), and RFS, based on which part of the foot lands first. Various methods, including two-dimensional (2D) visual-based methods and three-dimensional (3D) motion capture-based methods utilizing parameters such as the strike index (SI) or strike angle (SA), have been employed to assess these patterns. However, the consistency between the results obtained from each method remains debatable.

Descriptive epidemiology of prevalence of exercise habits among participants with hypertension: The National Health and Nutrition Survey 2013-2018.

Background: The current Japanese hypertension management guidelines (2019) recommend regular exercise for all patients with hypertension. However, limited evidence is available regarding the prevalence of exercise habits in these patients. Therefore, we examined the proportion of participants who met the recommendations on exercise in the Japanese hypertension management guidelines (2019) using a nationally representative sample.

The Validity and Reliability of a Smartphone Application for Break-Point Angle Measurement during Nordic Hamstring Exercise.

Background: A recently developed smartphone application (Nordic Angle) allows the automatic calculation of the break-point angle (BPA) during Nordic hamstring exercise (NHE) without transferring the collected data to a computer. The BPA is the point at which the hamstrings are unable to withstand force. However, the validity of the BPA values obtained by this method has not been examined.

Interlimb and Intralimb Coordination of Rectus Femoris and Biceps Femoris Muscles at Different Running Speeds.

Purpose: The purpose of this study was to investigate the relationship between spatiotemporal variables and the muscle activity of the rectus femoris (RF) and biceps femoris (BF) in both legs at various running speeds.

Methods: Eighteen well-trained male athletes (age: 20.7 ± 1.

Barriers and Facilitators of Research in Pediatric Sports Medicine Practitioners: A Survey of the PRiSM Society.

Background: Barriers and facilitators to research in sports medicine (SM) by physicians and allied health (AH) professions such as physical therapists and athletic trainers are understudied. The purpose of this research was to examine and compare research barriers, facilitators, and other research related facets including interests, comfort, knowledge, and resources among SM physicians and AH practitioners.

Study Design: Cross-sectional survey.

The Timing of Thigh Muscle Activity Is a Factor Limiting Performance in the Deceleration Phase of the 100-m Dash.

Purpose: We aimed to examine the timing of electromyography activity of the rectus femoris (RF) and biceps femoris (BF) in both legs, as well as spatiotemporal variables (running speed (RS), step frequency (SF), step length (SL)) between the maximal speed (Max) phase (50-70 m) and the deceleration (Dec) phase (80-100 m) of the 100-m dash.

Methods: Nine track and field athletes performed the 100-m dash with maximal effort. Spatiotemporal variables of each 10-m section were measured.

Activities of medical centers for athletes and spectators at cycling track events in the Tokyo 2020 Olympic and Paralympic Games.

Aim: We focused on the preparation and activities of clinics for spectators and athletes in the Izu Velodrome in Shizuoka Prefecture, which was managed by the Tokyo Organizing Committee of the Olympic and Paralympic Games (TOC).

Methods: Two medical clinics were established for the track cycling competition: one for Olympians and their associates, and one for spectators, TOC-related individuals, and volunteers. Each medical clinic had two separate buildings.

Timing of Rectus Femoris and Biceps Femoris Muscle Activities in Both Legs at Maximal Running Speed.

Purpose: The purpose of this study was to investigate the relationship between spatiotemporal variables of running and onset/offset timing of rectus femoris (RF) and biceps femoris (BF) muscle activities in both legs.

Methods: Eighteen male well-trained athletes (age = 20.7 ± 1.

Local-Area Walkability and Socioeconomic Disparities of Cardiovascular Disease Mortality in Japan.

Background There are spatial disparities in cardiovascular disease (CVD) mortality related to area-level socioeconomic status (SES) disadvantage, but little is known about the spatial distribution of CVD mortality according to built environment factors. We examined joint associations of neighborhood walkability attributes and SES with CVD mortality rates through linkage of Japanese national data sets. Methods and Results National data were used from the 1824 municipalities (of the 1880 potentially eligible municipalities) across Japan.

The prevalence of anemia in Japanese Universiade athletes, detected with longitudinal preparticipation medical examinations.

Background: No reports have evaluated the long-term trends of the prevalence of anemia in Universiade athletes using preparticipation medical examinations (PPMEs). We aimed to investigate the prevalence of anemia among Japanese Universiade athletes, using longitudinal PPMEs.

Methods: In this retrospective, observational study, athletes with published data from official reports of the Japanese delegation of the summer Universiade games between 1977 and 2011 were included, as were similar-aged nonathletes with published health data, extracted from official national reports from the Japanese Ministry of Health, Labour and Welfare.