<![CDATA[Wearable and monitoring can pair physiological signals with subjective reports, yet convergence between these channels remains unclear. This review synthesized evidence on (1) technologies paired with instruments; (2) convergence and divergence between physiological and subjective measures; and (3) interventions and strategies for optimizing athlete state. Following PRISMA 2020, Scopus was searched with TITLE-ABS-KEY strategy for studies during 2021 to 2026. After screening, 22 studies were included. Data used thematic synthesis and bibliometric analysis. Reporting quality was appraised using FICO, with retention at ≥12/16. No meta-analysis was conducted because designs, modalities, instruments, timing, and outcomes lacked an estimand. Four themes emerged: autonomic load, sleep and recovery, self-regulation, and individualized monitoring. HRV dominated. Physiological and subjective measures were often concordant but differed in magnitude and timing. Person-specific models were informative than group-level approaches. Dual-channel monitoring is more defensible. Future studies should use longer monitoring, standardized psychometrics, independent validation, and adequately powered interventions.]]>
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