Search results for "human [supplementary concept]"

Assessment of aerobic and anaerobic thresholds in five different technique specific incremental treadmill tests in cross country skiers

2016

The use of incremental tests to exhaustion is widely accepted in the field of exercise physiology in the assessment of athletes. These tests which can measure a number of physiological parameters can help coaches and athletes optimize training. Blood lactate concentrations (bLa) corresponding to heart rate (HR) provides insight on the athlete’s aerobic threshold (AerT) and anaerobic threshold (AnT). Cross country skiing is a sport where the selection of technique may influence the HR at which AerT and AnT occurs, eliciting higher bLa corresponding to lower HR depending on technique. Because of this, laboratory testing is crucial to provide coaches and athletes with the necessary information…

Heart rate recovery after maximal and submaximal exercise

2012

Pasi Karjalainen (2012). Heart rate recovery after maximal and submaximal exercise. Department of Biology of Physical Activity, University of Jyväskylä, Master thesis in exercise physiology, 76 pages. Heart rate recovery (HRR) after exercise reflects autonomic control of the heart. Heart rate recovery (HRR) has shown to have prognostic value among asymptomatic populations and patients with diseases. In addition, changes in HRR may reflect the effects of training load. The role of parasympathetic reactivation in decrease of heart rate (HR) is known to be strong immediately after the cessation of exercise. It is also shown that HRR is affected by the activity of the sympathetic system that is…

Heart rate variability as a physiological indicator or mental toughness

2016

Mental toughness is gaining prominence in sport psychology since athletes themselves, coaches, members of the press, sports commentators and sports psychologists have cited mental toughness as one of the most important psychological characteristics in elite sports. Even so, an extensive review of the available literature leads to the conclusion that there is a lack of a precise and widely accepted definition of mental toughness, while its conceptualization remains challenging. Therefore, based on the existing literature concerning physiological toughness (Dienstbier, 1989), this study examines through an innovative psychophysiological perspective how mental toughness operates, and thus cont…

Physiological and autonomic stress responses after prolonged sleep restriction and subsequent recovery sleep in healthy young men

2018

Purpose Sleep restriction is increasingly common and associated with the development of health problems. We investigated how the neuroendocrine stress systems respond to prolonged sleep restriction and subsequent recovery sleep in healthy young men. Methods After two baseline (BL) nights of 8 h time in bed (TIB), TIB was restricted to 4 h per night for five nights (sleep restriction, SR, n = 15), followed by three recovery nights (REC) of 8 h TIB, representing a busy workweek and a recovery weekend. The control group (n = 8) had 8 h TIB throughout the experiment. A variety of autonomic cardiovascular parameters, together with salivary neuropeptide Y (NPY) and cortisol levels, were assessed.…

Positive Computing as Paradigm to Overcome Barriers to Global Co-authoring of Open Educational Resources

2018

The adoption of Open Educational Resources (OER) can support collaboration and knowledge sharing. One of the main areas of the usage OER is the internationalization, i.e., the use in a global context. However, the globally distributed co-creation of digital materials is still low. Therefore, we identify essential barriers, in particular for co-authoring of OER in global environments. We use a design science research method to introduce a barrier framework for co-authoring OER in global settings and propose a wellbeing-based system design constructed from the barrier framework for OER co-authoring tool. We describe how positive computing concepts can be used to overcome barriers, emphasizing…

The Dynamics of the Organizational Culture in a Municipality

2013

A System Dynamics approach to improve clinical risk management effectiveness in an italian hospital ward: a case study.

Transcranial Alternating Current Stimulation (tACS) Does Not Affect Sports People’s Explosive Power: A Pilot Study

2021

Purpose: This study is aimed to preliminary investigate whether transcranial alternating current stimulation (tACS) could affect explosive power considering genetic background in sport subjects.Methods: Seventeen healthy sports volunteers with at least 3 years of sports activities participated in the experiment. After 2 weeks of familiarization performed without any stimulation, each participant received either 50 Hz-tACS or sham-tACS. Before and after stimulation, subjects performed the following tests: (1) the squat jump with the hands on the hips (SJ); (2) countermovement jump with the hands on the hips (CMJ); (3) countermovement jump with arm swing (CMJ-AS); (4) 15-s Bosco’s test; (5) s…

Interactive map interface for controlling bridge crane automation A cognitive-affective approach

2016

This study outlines the development process of a new touch screen based user interface for controlling bridge crane automation in industrial environments. A user study of existing situation (n1 = 11) was used to develop an understanding of the cognitive and emotional design goals for crane operation. Conceptualization of these goals in the context of automation produced a set of requirements, which were used to develop a map-based touch screen user interface. Two field tests (n2 = 5, n3 = 5) revealed how bridge crane operators cognise and emotionally experience the increasing automation and how the user interface should be designed to support the operator’s spatial mental representation as …

Open-ended projects opened up — aspects of openness

2017

Abstract—One of the most important areas of competence for professional engineers is the ability to function well in project work, in particular they need to be able to efficiently solve open-ended problems in different collaborative settings. The development of this ability is however not prominent in engineering education despite numerous authors suggesting openended problems as a pedagogical tool to promote development of collaborative problem solving competence by including elements of group or project work in courses. In our own long experience of using open-ended problems in collaborative student projects, we have identified a lack of systematic progression in learning outcomes and sk…