The effect of music on submaximal cycling

Student Number : 9601456A - MSc research report - School of Therapeutic Sciences - Faculty of ScienceINTRODUCTION: Athletes frequently report training to music yet there have been relatively few studies that have addressed the benefit of exercising with music. PURPOSE: This study examined the effects of popular music on submaximal cycling. METHOD: Volunteer men and women (N=30), aged between 18 and 40 years, underwent an initial familiarisation session. Part of this session involved the measurement of maximal oxygen consumption (V02max). This was then followed by two twenty-minute submaximal cycling sessions, both at 80% of maximal oxygen consumption. Subjects were randomly divided into two groups. Group A cycled without any music and Group B cycled with music for the first submaximal cycling session. A few days later the subjects underwent the same testing procedure, however this time group A cycled to music and group B cycled without music. Subjects served as their own control. During the submaximal procedure heart rate, Borg Scale and lactate responses were assessed. Subjects completed a post-test questionnaire once both submaximal cycling sessions were completed. The differences between the sessions with and without music with respect to heart rate, Borg Scale and change in lactate were analysed using an appropriate analysis of variance (ANOVA) for the two-period crossover design adjusting for relevant baselines. Testing was set at the 0.05 level of significance. RESULTS: It was found that listening to music, while cycling, resulted in no significant changes in physiological variables (change in lactate concentration and heart rate). The average, as well as the instantaneous two-minute intervals of the 10-point Borg scale also yielded no significant difference. However, 66.7% of the subjects, according to the post-test questionnaire, perceived the cycling session with music to be easier than the session without music. CONCLUSION: Listening to music, while cycling, may allow individuals to alter their overall, subjective perception of cycling. According to the post-test questionnaire, subjects perceived their overall experience of cycling with music to be easier than cycling without music. This could suggest that cycling to music could act as a positive distracter and motivating force that could thereby increase adherence to training, allowing the cyclist to train longer and harder and thus in the long run perform better in races. However, from a physiological viewpoint, listening to music, while performing submaximal cycling, resulted in no physiological benefit

Determination of 2D implanted ion distributions using inverse radon transform methods

Two methods are presented for the experimental determination of 2D implanted ion distribution resulting from implantations with a line source into amorphous targets. It is shown that the relation between the 2D distribution and the depth profiles resulting from tilted angle implantations is described by the Radon transformation. The inverse transformation has been applied to accurately measured depth profiles. The first method uses a digitization of the 2D distribution and the second method uses a parameterized function for the 2D distribution. The methods are tested for a 400 keV boron implantation in an amorphous layer of silicon. The experimental obtained 2D distributions are compared with a TRIM Monte Carlo simulation. A good agreement between experiment and simulation is observed

The Influence of Genetic Variation on Von Willebrand Factor levels and the Risk of Stroke

__Abstract__ Cardiovascular disease (CVD), primarily due to arterial thrombus formation resulting in vascular occlusion, is one of the most important causes of morbidity and mortality in the world]. In the Netherlands, every day on average 51 males and 57 females die as a result of CVD. Every year, CVD is responsible for nearly one third of total deaths. The pathogenesis of CVD is highly complex. Both genetic factors and environmental factors contribute, via complex interactions, to the pathogenesis of atherosclerosis, plaque rupture and subsequent thrombus formation and vascular occlusion. In the past, several risk factors for cardiovascular disease, such as smoking, hypercholesterolemia and hypertension, have been identified. As coagulation factors, including von Willebrand factor (VWF), are of major importance in the regulation of thrombus formation, their role in CVD has also been investigated

Власть и управление

В современных условиях все больше внимания уделяется поискам оптимальной управленческой структуры. В статье рассматриваются общие и особенные моменты власти и управления; в частности, рассматриваются проблемы управления человеческими ресурсами предприятия.У сучасних умовах усе більше уваги приділяється пошукам оптимальної управлінської структури. У статті розглядаються загальні й особливі моменти влади і керування; зокрема, розглядаються проблеми керування людськими ресурсами підприємства.In modern conditions of more and more attention it is given searches of optimum administrative structure. In this article the general and especial moments of authority and management are considered; in particular, problems of management are considered by human resources of the enterprise

Imitation of hand and tool actions is effector-independent

Following the theoretical notion that tools often extend one's body, in the present study, we investigated whether imitation of hand or tool actions is modulated by effector-specific information. Subjects performed grasping actions toward an object with either a handheld tool or their right hand. Actions were initiated in response to pictures representing a grip at an object that could be congruent or incongruent with the required action (grip-type congruency). Importantly, actions could be cued by means of a tool cue, a hand cue, and a symbolic cue (effector-type congruency). For both hand and tool actions, an action congruency effect was observed, reflected in faster reaction times if the observed grip type was congruent with the required movement. However, neither hand actions nor tool actions were differentially affected by the effector represented in the picture (i.e., when performing a tool action, the action congruency effect was similar for tool cues and hand cues). This finding suggests that imitation of hand and tool actions is effector-independent and thereby supports generalist rather than specialist theories of imitatio

Emotional and non-emotional memories are suppressible under direct suppression instructions

Research on retrieval suppression has produced varying results concerning whether negatively valenced memories are more or less suppressible than neutral memories. This variability may arise if, across studies, participants adopt different approaches to memory control. Cognitive and neurobiological research points to two mechanisms that achieve retrieval suppression: thought-substitution and direct suppression (Benoit & Anderson, 2012; Bergström, de Fockert, & Richardson-Klavehn, 2009). Using the Think/No-think paradigm, this study examined whether participants can inhibit neutral and negatively valenced memories, using a uniform direct suppression strategy. Importantly, when strategy was controlled, negative and neutral items were comparably inhibited. Participants reported high compliance with direct suppression instructions, and success at controlling awareness predicted forgetting. These findings provide the first evidence that direct suppression can impair negatively valenced events, and suggest that variability in forgetting negative memories in prior studies is unlikely to arise from difficulty using direct suppression to control emotionally negative experiences

Celebrating Economies of Change: Brave Visions for Inclusive Futures

This issue has been inspired by a path-breaking conference held by the Canadian Society for Ecologi-cal Economics (CANSEE), which took place this past May 2019 in Waterloo, Ontario. Entitled Engaging Economies of Change, the conference aimed to ex-pand existing research networks in the economy-environment nexus by building connections beyond the academy in order to meaningfully engage with the practicalities of building and implementing change. This issue captures the rich content shared during the event, as well as descriptions of the pro-cesses and efforts made to create a welcoming and respectful space where academics and community activists could build alliances and discuss common challenges. The conference organizers – all graduate students and activists themselves -- called this ‘building a brave space’.This research was supported by the Social Sciences and Humanities Research Council of Canad

Научно-практический семинар "Трансфер биотехнологий вторичных метаболитов"

биотехнологияметаболитыконференци

Motor-cortical beta oscillations are modulated by correctness of observed action

Contains fulltext : 73550.pdf (Publisher’s version ) (Closed access)How humans understand the intention of others’ actions remains controversial. Some authors have suggested that intentions are recognized by means of a motor simulation of the observed action with the mirror-neuron system [1–3]. Others emphasize that intention recognition is an inferential process, often called ‘‘mentalizing’’ or employing a ‘‘theory of mind,’’ which activates areas well outside the motor system [4–6]. Here, we assessed the contribution of brain regions involved in motor simulation and mentalizing for understanding action intentions via functional brain imaging. Results show that the inferior frontal gyrus (part of the mirror-neuron system) processes the intentionality of an observed action on the basis of the visual properties of the action, irrespective of whether the subject paid attention to the intention or not. Conversely, brain areas that are part of a ‘‘mentalizing’’ network become active when subjects reflect about the intentionality of an observed action, but they are largely insensitive to the visual properties of the observed action. This supports the hypothesis that motor simulation and mentalizing have distinct but complementary functions for the recognition of others’ intentions