Concurrent training associated with moderate walnut consumption improved isokinetic strength, subjective sleep quality, cognitive performance and postural balance in elderly active men: a randomized controlled trial.

"Declarations Conflict of interestThe authors declare that they have no conflict of interest. Ethical standardsThe authors declare that the experiments comply with the current laws of the country in which they were performed. The study was conducted according to the guidelines laid down in the Declaration of Helsinki and all procedures were approved by the local Institutional Review Board of Protection of Persons (CPP SUD 0033/2017). The study was registered at the Pan African Clinical Trial Registry (PACTR202004543859924) and performed between March 2017 and May 2017 at the research laboratory of evaluation and management of musculoskeletal system pathologies, LR20ES09 University of Sfax, Sfax Tunisia. Conflict of interest The authors declare that they have no conflict of interest."

"Declarations: Conflict of interestThe authors declare that they have no conflict of interest.: Ethical standardsThe authors declare that the experiments comply with the current laws of the country in which they were performed. The study was conducted according to the guidelines laid down in the Declaration of Helsinki and all procedures were approved by the local Institutional Review Board of Protection of Persons (CPP SUD 0033/2017). The study was registered at the Pan African Clinical Trial Registry (PACTR202004543859924) and performed between March 2017 and May 2017 at the research laboratory of evaluation and management of musculoskeletal system pathologies, LR20ES09 University of Sfax, Sfax Tunisia. Ethical standards: The authors declare that the experiments comply with the current laws of the country in which they were performed. The study was conducted according to the guidelines laid down in the Declaration of Helsinki and all procedures were approved by the local Institutional Review Board of Protection of Persons (CPP SUD 0033/2017). The study was registered at the Pan African Clinical Trial Registry (PACTR202004543859924) and performed between March 2017 and May 2017 at the research laboratory of evaluation and management of musculoskeletal system pathologies, LR20ES09 University of Sfax, Sfax Tunisia."