ArticleSports (Basel, Switzerland)2024
Diurnal Variations in Upper and Lower Body Power in Adolescent Volleyball Players: Exploring Time-of-Day Effects on Performance.
Article in Sports (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Muscle strength and power in young volleyball players: reference values and age group differences.BMC sports science, medicine & rehabilitation · 2026Article
- Comparative effects of high intensity interval and functional training on performance outcomes in adolescent female volleyball players.BMC sports science, medicine & rehabilitation · 2025Article
- Time-of-Day Effects on Post-Activation Potentiation Protocols: Effects of Different Tension Loads on Agility and Vertical Jump Performance in Judokas.Medicina (Kaunas, Lithuania) · 2025Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
objectivesThis study aims to investigate the daily variations in upper and lower body power performance in adolescent volleyball players.
methodsThe sample consisted of 50 young male volleyball players (14.12 ± 0.8 years), actively involved in regular training and competition. Players were tested for vertical jump tests and medicine ball throws twice, once in the morning (8:00-9:30 h) and once in the evening (18:00-19:30 h).
resultsSignificant differences (
conclusionsThis study demonstrated that lower body power, manifested in vertical jump performance, was significantly better in the evening compared to the morning. For upper body assessments, the standing medicine ball throw appears more reflective of volleyball-specific movements, while the lying and sitting throw may be less applicable. These findings suggest that volleyball training and testing, especially for leg power, may be more effective later in the day, while upper body performance appears less affected by time.
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Registered trials
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