ArticleAnnals of medicine2026
Early-season changes in concentric-only, long and short stretch-shortening cycle jump performance in highly trained youth basketball players.
Article in Annals of medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundIn basketball, most studies analysing seasonal variations in neuromuscular performance through vertical jump testing rely solely on the countermovement jump (CMJ), a slow stretch-shortening cycle (SSC) test. This study aimed to analyse early-season changes in jumping performance in highly-trained youth basketball athletes, utilizing a comprehensive jump test battery to determine the time-course of adaptations in concentric-only qualities (using the squat jump, SJ), and slow (through the CMJ) and fast SCC function ( MATERIALS AND
methodsTwenty-six players (under-16:
resultsSJ and CMJ height improved only from T1 to T2 (both
conclusionsReactive strength qualities and fast SSC performance peaked during the early in-season, while changes in concentric-only and slow SSC function (assessed with SJ and CMJ, respectively) occurred exclusively during the pre-season.KEY MESSAGESDifferent vertical jump tests showed distinct early-season changes in youth basketball.Squat (SJ) and Countermovement Jump (CMJ) performance improved only during the pre-season, while reactive strength qualities assessed via the Drop Jump (DJ) and Repeated Jumps peaked during the early in-season.DJ reactive strength index and ground contact times might be more sensitive than CMJ or SJ height to detect changes in neuromuscular capabilities in-season.
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