Previous findings support that cardiovascular markers of challenge/threat reflect one's relative balance of resource versus demand evaluations during task performance. We report a novel investigation of the effects of performance outcome framing (potential for gain vs. loss) on these cardiovascular markers. Before completing a test, participants learned they could gain or lose money, or neither, based on performance. Results revealed that during the test, gain and loss framings led to higher heart rate and lower pre-ejection period than no incentive, consistent with greater task engagement; gain framing led to lower total peripheral resistance and higher cardiac output than loss framing, consistent with relative challenge. Implications for challenge/threat and related research and theories are discussed.
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http://dx.doi.org/10.1016/j.ijpsycho.2009.05.006 | DOI Listing |
Am J Sports Med
January 2025
Department of Orthopaedic Surgery, Division of Physical Medicine and Rehabilitation, Stanford University, Stanford, California, USA.
Background: A bone stress injury (BSI) is a common overuse injury in collegiate athletes, particularly cross-country and track and field runners. Limited work describes the seasonality of BSIs or the differences in rates and anatomic locations of BSIs in collegiate runners.
Purpose: To describe seasonally related trends in anatomic locations of BSIs in National Collegiate Athletic Association (NCAA) Division I male and female middle- and long-distance runners.
Front Psychol
January 2025
Department of Physical Education and Spor, Yasar Dogu Faculty of Sport Sciences, Ondokuz Mayis University, Samsun, Türkiye.
Introduction: Athletes competing in weight-class sports often seek to gain an advantage by competing at lower weights. Athletes competing in weight-class sports often seek to gain an advantage by competing at lower weights. To achieve this, they aim to lose weight during the competition period, leading to various physiological and psychological changes.
View Article and Find Full Text PDFNeurosurg Rev
January 2025
Department of Neurosurgery, King's College Hospital Foundation Trust, London, UK.
Minimally invasive parafascicular surgery (MIPS) with the use of tubular retractors achieve a safe resection in deep seated tumours. Diffusion changes noted on postoperative imaging; the significance and clinical correlation of this remains poorly understood. Single centre retrospective cohort study of neuro-oncology patients undergoing MIPS.
View Article and Find Full Text PDFPhysiol Rev
January 2025
University of Zurich, Vetsuise Faculty, Institute of Veterinary Physiology, Zurich, Switzerland.
Metabolic energy stored mainly as adipose tissue is homeostatically regulated. There is strong evidence that human body weight () is physiologically regulated, i.e.
View Article and Find Full Text PDFJ Biol Chem
January 2025
Genomics Research Center, Academia Sinica, Taipei, Taiwan; Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan; Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan; Chemical Biology and Molecular Biophysics Program, Taiwan International Graduate Program, Institute of Biological Chemistry, Academia Sinica; Institute of Biochemical Sciences, National Taiwan University; Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Taiwan University and Academia Sinica, Taipei, Taiwan. Electronic address:
Tauopathies cover a range of neurodegenerative diseases in which natively unfolded tau protein aggregates and spreads in the brain during disease progression. To gain insights into the mechanism of tau structure and spreading, here, we examined the biochemical and cellular properties of human full-length wild-type and familial mutant tau, ΔK280, with a deletion at lysine 280. Our results showed that both wild-type and mutant tau are predominantly monomeric by analytical ultracentrifugation.
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