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Annotation: Jumping (plyometric) work can improve power, rate of force development, and jump performance, with some studies finding improvements comparable to the effects of traditional strength training/weightlifting for a range of speed-strength parameters. For strength athletes, the key question is not "should I jump?" but "how much should I jump" to achieve a stimulus without overloading the tendons or impairing recovery after lifting. This article proposes a practice-oriented model of "optimal volume" using clear metrics (contacts, intensity, frequency, weekly distribution) and based on data from systematic reviews/meta-analyses and methodological recommendations on plyometric volume.

Annotation: The article examines the theoretical and methodological foundations for the formation of hybrid development strategies of enterprises in the digital economy. The necessity of integrating traditional competitive strategies with digital business models, platform solutions, and data analytics tools is substantiated. The economic essence of the concept of a “hybrid enterprise development strategy” is clarified as an integrated system of strategic decisions that ensures the synergy of classical strategic management approaches and digital value creation mechanisms. A classification of hybrid strategies is proposed according to the vectors of digital transformation, including digital differentiation strategy, platform-product strategy, data-driven strategy, ecosystem strategy, and innovation-adaptive strategy. An integrated strategic management model considering the level of digital maturity of an enterprise and a system of performance indicators for evaluating the effectiveness of hybrid strategy implementation are developed. It is proved that the implementation of hybrid strategies enhances competitiveness, adaptability, and innovativeness of enterprises in a turbulent digital environment.

Annotation: This article explores the use of hand puppets and theatrical play techniques in educational and corrective–developmental work with children with autism spectrum disorders. The study analyses the psychoemotional and communicative characteristics of this group of children, as well as the limitations of traditional pedagogical approaches. A theatrical play–based approach is substantiated, in which the puppet character functions as a mediating tool that enables indirect pedagogical interaction. The paper outlines the methodological principles for organizing a theatrical play environment and describes the key stages of working with hand puppets. Observed outcomes of the practical application of the approach and the conditions supporting the sustainability of its effects in educational practice are also presented.

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