Background: Maximal force plays a pivotal role in enhancing performance across various dynamic sports, particularly in sprinting biomechanics. However, muscle strength asymmetry among major muscle groups like the hamstrings and quadriceps may hinder sprint performance and raise injury risks. This study examines how intra- and inter-limb strength asymmetry relates to sprint kinematics and the power-force-velocity profile in youth athletes.
View Article and Find Full Text PDFThis systematic review and meta-analysis aims to investigate the validity and reliability of the My Jump smartphone application in measuring vertical jump height, specifically using flight-time-based measures. To identify potential studies for inclusion, a comprehensive search strategy was employed in PubMed, Web of Science, Scopus, and EBSCO host databases. Validity was assessed in two ways: (1) mean and standard deviations of My Jump measurements were compared to criterion methods to assess the agreement of raw scores; (2) correlation coefficients evaluated the within-group consistency of rankings between My Jump and criterion methods.
View Article and Find Full Text PDFUlupınar, S, Özbay, S, Gençoğlu, C, and İnce, İ. Performance differences between Greco-Roman and freestyle wrestlers: a systematic review and meta-analysis. J Strength Cond Res 35(11): 3270-3279, 2021-This systematic review and meta-analysis aims to summarize evidence on performance differences between Greco-Roman (GR) and freestyle (Fr) wrestlers.
View Article and Find Full Text PDFBackground/objective: This study aims to compare the effect of sprint distance and repetition number on performance, physiological responses, and energy systems contributions.
Methods: Eighteen male university league soccer players (age: 19.9 ± 1.
J Sports Med Phys Fitness
February 2020
Background: Previous studies were limited to physical measurements or included very few performance test batteries, which has hindered the determination of the best tests for predicting competition performance in weightlifters. This study aimed to examine the relationships between body composition, Wingate anaerobic power, vertical jump height, isokinetic strength, handgrip strength, trunk strength, and competition performance and to determine the best predictors of competition performance in male junior weightlifters.
Methods: Sixty-seven male junior weightlifters (age 16.