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Purpose– The aim of the paper is to investigate social sustainability by focussing on the stakeholder theory and by presenting specific levers and capabilities for building more socially sustainable organizations.Design/methodology/approach– The paper is based on the analysis of recent academic and managerial literature. Through comparing theoretical and methodological perspectives from multiple authors, a specific theoretical and methodological viewpoint based on the stakeholder theory is proposed.Findings– The paper discusses the idea that building socially sustainable organisations requires the management of multi-stakeholder processes that are physiologically conflicting and that often create paradoxical tensions. Participative settings of action and reflection and capabilities as reflexivity and "paradoxical thinking" are proposed as key levers for dealing with multi-stakeholders processes towards a more socially sustainable organizing.Research limitations/implications– This paper raises reflections focussed on the "social pillar" of sustainability and does not consider different types of organizations in different multi-stakeholders processes. Such a perspective does not exhaust the variety of cases and research studies that could be considered in the field and further developed.Originality/value– The value of the paper is in its construction of a framework for both research and practical purposes in the domain of management and sustainability. The work also attempts to link the concepts of reflexivity and paradox to a methodological proposal for leading the organizational journey towards social sustainability.

Background: The bench press exercise (BP) is commonly practiced in both recreational and professional training. The weight is lowered from a position where the elbows are at a 90° angle at the start and <90° at the end of eccentric phase, and then returned to the elbows extended position. In order to focus the exercise more on the triceps brachii (TB) rather than the pectoralis major (PM), the inter-handle distance (IHD) is decreased diminishing the involvement of the PM in favor of the TB. Purpose: To improve performance of the exercise by reducing force dissociation and transmitting 100% of the external load to the muscle tissue we propose a prototype of the barbell with a bar on which two sleeves are capable of sliding. The dynamic modifications of the IHD keep the elbow flexion angle constant at 90°. Results: Analysis of the inter-handle distance (IHD) signals of the upper body muscles showed a marked increase in muscle activity using the experimental barbell for the PM (19.5%) and for the biceps brachii (173%). Conclusions: The experimental barbell increased the muscle activity typical of the bench press exercise, obtaining the same training induction with a lower load and consequently preventing articular stress.