The aim of the study is to investigate the relationship between motor performances of children aged 10-14 years and ball striking speeds made by specific technique and to determine motor performance differences between the branches. A total of 64 children (football = 22, volleyball = 19, tennis = 23) aged 10-14 years participated in the study. The…

This study aims to design a mechanism with which the density of any solid or liquid can be determined without measuring its mass and volume in order to help students comprehend the concept of density more easily. The "solidensimeter" comprises of two scaled and nested glass containers (graduated cylinder or beaker) and sufficient water.…

Repetitive sensory motor behaviors are a direct target for clinical treatment and a potential treatment endpoint for individuals with intellectual or developmental disabilities. By removing the burden associated with video annotation or direct observation, automated detection of stereotypy would allow for longer term monitoring in ecologic…

Many undergraduate students in kinesiology are interested in clinical careers and seek research opportunities for advanced study and unique learning experiences. This article describes a process of engaging undergraduate students in a multi-disciplinary, National Institutes of Health (NIH)-funded program project investigating factors that may…

To recognize and assess the job stressors that teachers face in daily practice is essential. One of the most used objective measures of stress is the heart rate (HR). This pilot study explored the use of a wearable device (smartwatch) to monitor the HR of two teachers over two weeks in the classroom. Educational context variables (subject, class…

A science café and a concert with a panel discussion were held with public audiences to communicate information about global change and ecosystem soundscapes. Both events were evaluated through: (i) post-event surveys to measure global change perceptions, awareness, and attitudes; (ii) skin biosensors to measure the engagement levels of a…

Teacher educators use various measures to gauge pre-service teachers' knowledge, skills, and attitudes, including behavioral measures, self-report questionnaires, and interviews. These measures often fail to capture the granularities of the teaching and learning processes. As such, there has been a burgeoning and recent interest in the use of…

Purpose: The aim of this study was to determine the changes in neuromuscular contractile properties in elite cyclists associated to the peripheral fatigue produced in a maximal incremental test in cycle ergometer. Methods: Forty-eight volunteers' well-trained male cyclists were evaluated during the competition season within a recovery microcycle.…

Evidence is growing that physical activity can impact cognitive functioning. This study examined the associations between physical activity, sedentary behavior and attitude toward physical activity on measures of literacy. Community literacy center participants (n = 20, mean age = 9.5 yrs.) wore accelerometers for three days and completed the…

The IOLab is a versatile and inexpensive data acquisition device in a cart that can roll on its three wheels. It has numerous sensors for a variety of physical quantities. We adapted "RealTime Physics, Module 1: Mechanics" active learning labs for use with the IOLab. We tested these labs both on campus and with distance learners at…

In recent years, nanotechnology has been one of the major subjects of scientific and technological research. Currently, several applications of nanotechnologies are already available on the market. Particularly relevant are the fields of new materials and sensors, which have excellent potential future applications in the biomedical field. This…

Three-dimensional (3D) body scanning is becoming an increasingly popular tool for research in the field of family and consumer sciences (FCS) because it quickly and accurately measures constructs that describe the human form. This study compared viewing a 3D body representation to viewing a two-dimensional (2D) representation and whether the…

In this article, a low-cost and pocket-sized setup for measuring CO[subscript 2] is presented. This setup is based on Arduinos, making it economic and open to modifications or improvements that satisfy other needs. It is composed of an Arduino board, a CO[subscript 2] sensor, an SD-card module, and a control panel. The device has been tested in…

Since children spend a large proportion of their time in institutional settings such as schools, health promotion researchers have identified this as an important setting to promote physical activity (PA). Apart from physical education, PA could be integrated into the school curriculum in other ways. Therefore, the aim of this study was to examine…

The basic physics of the flute is presented from the perspective of a professional flutist. The flutist can control loudness, pitch and to some extent timbre. Oscilloscope images are provided to compare changes in these three fundamental sound characteristics. Readers can view a video (Ruiz 2017 "Video: The Flute"…