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Exercise reinforcement predicts physical activity of children. Repeated exposures of physical activity may increase physical activity reinforcement (incentive sensitization). Active videogame (AVG) play produces light-to-moderate-intensity physical activity. Ideally, AVG play would transition to nonscreen-based active play through incentive sensitization of traditional active play (TAP), providing AVG does not increase sedentary videogame (SVG) reinforcement. Greater autonomy increases motivation toward traditional physical activity, but whether autonomy enhances incentive sensitization has not been studied. To determine whether autonomy over AVG play promotes incentive sensitization of TAP or SVG. Inactive children (ages 8-12; 5th-97th body mass index percentile) were provided with AVG and SVG for 6 weeks and assigned to either a high autonomy ( = 25) or low autonomy ( = 24) group, differentiated by AVG choice and more freedom over amount of play. Both groups played AVG 3 days per week. SVG were played ad libitum. Participants completed an operant responding task to measure the relative reinforcing value (RRV) of AVG versus SVG (RRV) and AVG versus TAP (RRV) at baseline, 6 weeks, and 10 weeks. RRV increased over time ( = 0.056) but did not differ by autonomy or autonomy × time ( = 0.184). RRV decreased over time ( = 0.033) but did not differ by autonomy or autonomy × time ( = 0.73). AVG play does not increase motivation toward SVG and increases motivation to play AVG relative to TAP. Providing higher autonomy did not promote incentive sensitization of play.
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http://dx.doi.org/10.1089/g4h.2019.0040 | DOI Listing |
BMC Med Educ
September 2025
Department of Prosthodontics, University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany.
Background: Bridge preparation skills are a vital component of dental education and require specific techniques. This study aimed to develop and evaluate 3D printed teeth for use in defect-oriented bridge preparation and pre-prosthetic exercises in dental training, addressing the limited customization and lack of integrated workflows found in commercial typodont teeth. The null hypothesis stated that 3D printed teeth offered no advantage over established typodont training methods for bridge preparation.
View Article and Find Full Text PDFBMC Rheumatol
September 2025
Department of Environment and Biosciences, School of Business, Innovation and Sustainability, Halmstad University, Halmstad, Sweden.
Geroscience
September 2025
NUS Bia-Echo Asia Centre for Reproductive Longevity and Equality, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
In the past century, the human Lifespan has doubled. However, this is not equivalent to Healthspan which refers to the number of years spent healthy and free from disease. Women have an additional level of complexity on the path to optimal healthspan where health resilience dramatically decreases following menopause and this is due to their ovaries aging by midlife.
View Article and Find Full Text PDFObes Surg
September 2025
Department of Experimental Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, Netherlands.
Background: Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) are common bariatric procedures that lead to substantial and sustained weight loss. Although both procedures induce hormonal and physiological effects, RYGB includes both a restrictive and malabsorptive component due to anatomical rerouting, whereas SG is considered primarily restrictive. This study aimed to quantify differences in energy and fat absorption between both procedures using near-infrared spectroscopy (NIRS).
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