The present study was designed to investigate the influence of two different types of modeling and knowledge of performance on acquisition and retention of two volleyball skills (set and serve). Participants were 63 boys and 53 girls in elementary school, whose mean age was 11.7 yr. (SD=.5). The children were randomly assigned into two groups given the same practice method for 16 practice sessions (8 for the set and 8 for the serve) but different types of modeling. Some participants observed a videotape of an expert model performing the skills, and the second group observed a videotaped replay of their own performance. Verbal cues were provided simultaneously with the videotaped demonstration. The first group improved set and serve skills more on acquisition and on the retention test than the second group. This improvement was present when scores and form were evaluated. Modeling plus instructional cues seemed to improve children's learning of two volleyball skills (set and serve), and this procedure is suggested for use by practitioners.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.2466/pms.2002.94.3c.1131 | DOI Listing |
Rheumatology (Oxford)
January 2025
School of Management, Shanxi Medical University, Taiyuan, China.
Objectives: Rheumatoid arthritis (RA) is a chronic, destructive autoimmune disorder predominantly targeting the joints, with gut microbiota dysbiosis being intricately associated with its progression. The aim of the present study was to develop of effective early diagnostic methods for early RA based on gut microbiota.
Methods: A cohort comprising 262 RA patients and 475 healthy controls (HCs) was recruited.
Plant Cell
December 2024
Shenzhen Research Institute, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, China.
A complex regulatory network governs fruit ripening, but natural variations and functional differentiation of fruit ripening genes remain largely unknown. Utilizing a genome-wide association study (GWAS), we identified the NAC family transcription factor MdNAC18.1, whose expression is closely associated with fruit ripening in apple (Malus × domestica Borkh.
View Article and Find Full Text PDFBio Protoc
January 2025
International Institute of Food Innovation Co., Ltd., Nanchang University, Nanchang, China.
PCR-based genome walking is one of the prevalent techniques implemented to acquire unknown flanking genomic DNAs. The worth of genome walking includes but is not limited to cloning full-length genes, mining new genes, and discovering regulatory regions of genes. Therefore, this technique has advanced molecular biology and related fields.
View Article and Find Full Text PDFFront Pharmacol
January 2025
Department of Plastic and Cosmetic Surgery, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, China.
Introduction: Melanoma (MM), the deadliest form of skin cancer, originates from melanocytes. Despite advances in immunotherapy that have somewhat improved the prognosis for MM patients, high levels of resistance to treatment continue to result in poor clinical outcomes. Identifying novel biomarkers and therapeutic targets is critical for improving the prognosis and treatment of MM.
View Article and Find Full Text PDFBMC Cardiovasc Disord
January 2025
Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Background: Hypertension in young adults is often due to secondary causes, and investigating these can be resource-intensive. This study aimed to identify clinical and biochemical markers that could suggest secondary hypertension in individuals under 40 years.
Materials And Methods: A 6-year retrospective observational cohort study included 207 young adults with hypertension who were assessed for secondary causes such as hyperthyroidism, primary aldosteronism, Cushing's syndrome, pheochromocytoma, and renovascular disease.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!