Trial reportJournal of the International Society of Sports Nutrition2026
Effects of caffeine gum on same-day and subsequent neuromuscular performance under a standardized resistance-priming condition in male basketball players.
Trial report in Journal of the International Society of Sports Nutrition, 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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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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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
purposeThis study examined whether 3 mg·kg
methodsFifteen male basketball players completed three randomized, double-blind, placebo-controlled crossover conditions: PLA+RP, CAF3+RP, and CAF6+RP. After 15 min of gum chewing, participants performed a standardized warm-up followed by RP consisting of 3 × 3 back squats at 85% 1RM. Mean concentric velocity (MV) was recorded during RP. Performance tests were conducted at 1 h, 24 h, and 48 h post-RP and included isometric mid-thigh pull peak force and 200-ms rate of force development, countermovement jump height, 20-m sprint, Y-shaped reactive agility, and Lane Agility Test. Data were analyzed using linear mixed-effects models adjusted for experimental period and administration sequence.
resultsSignificant dose × time interactions were observed for all performance outcomes except the Lane Agility Test. At 1 h, CAF3+RP and CAF6+RP produced superior performance compared with PLA+RP in isometric strength, explosive power, sprint, and reactive agility outcomes. No significant differences were observed between CAF3 and CAF6. At 24 h and 48 h, no additional between-condition advantages were found for either caffeine dose compared with PLA. Barbell MV during RP was higher under caffeine conditions than PLA, indicating greater RP training output.
conclusionWithin a standardized RP context, CAF3 and CAF6 caffeine gum were associated with improved same-day neuromuscular performance and higher RP barbell velocity compared with PLA, but no additional between-condition advantages were observed at 24 h or 48 h. Because this study did not include pre-intervention baseline testing, a caffeine-only condition, or a no-RP control condition, the findings should be interpreted as caffeine-related differences within an RP context rather than direct evidence of the independent effects of caffeine, RP, or their interaction.
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