Reproducibility of dynamic balance and anterior tibiofibular gap measurements in men and women: A menstrual cycle-based longitudinal study.

Background: The reproducibility of dynamic balance is an essential component of athletic performance and injury prevention, although it is affected by sex differences. This study aimed to confirm the reproducibility of repeated dynamic balance measurements and ultrasonography assessments of the anterior tibiofibular gap that may contribute to changes in dynamic balance for each sex.

Methods: This was a longitudinal study involving 48 feet, with 12 men and 12 women.

Comparison of the distance between the talus and lateral malleolus during the stance phase with and without chronic ankle instability.

The level of dynamic mechanical instability between the bony parts of the ankle joint provides important information on biomechanical function. However, the dynamics of the distance between the talus and lateral malleolus during gait remain unclear. This study aimed to compare the distance between the talus and lateral malleolus and the ankle joint angles during the stance phase of gait between individuals with chronic ankle instability (CAI) and healthy adults.

Effectiveness of Metaverse Space-Based Exercise Video Distribution in Young Adults: Randomized Controlled Trial.

Background: In response to the serious lack of physical activity among young adults, recent attempts have been made to encourage young people to exercise through exercise video distribution. However, merely distributing videos does not lead to improved physical activity levels. Metaverse space, which enables web-based interaction through avatars, allows users to watch exercise videos in the same space as other avatars.

In vitro production of insulin-responsive skeletal muscle tissue from mouse embryonic stem cells by spermine-induced differentiation method.

The treatment of an embryoid body with spermine for a short duration can trigger the generation of a 3-dimensional multilayer myotube sheet (MMTS) that shows pulsatile activity. MMTS was previously characterized as a model of skeletal muscle tissue. In the present work, the insulin responsiveness of MMTS was investigated because it is an essential function for a model of skeletal muscle.

Concentration-dependent effects of spermine on apoptosis and consequent generation of multilayer myotube sheets from mouse embryoid bodies in vitro.

The concentration-dependent effect of spermine was investigated on the spermine-induced generation of multilayer myotube sheets (MMTS) from mouse embryoid bodies (EBs). During spermine treatment for 24 h, a monolayer cell sheet that had already grown radially from the periphery of an EB was exfoliated. The exfoliation was inhibited by z-VAD.