“…( Van Het Reve et al, 2014 ; Park and Yim, 2016 ; Neumann et al, 2018 ; Yerrakalva et al, 2019 ; Gao et al, 2020 ; Van den Helder et al, 2020 ; Geraedts et al, 2021 ; Jungreitmayr et al, 2021 ; Netz et al, 2021 ). Findings point toward an promising but often not significant ( Yerrakalva et al, 2019 ; Van den Helder et al, 2020 ; Geraedts et al, 2021 ), increase in lower body strength, balance, and flexibility, whereas others show significant effects on these markers ( Van Het Reve et al, 2014 ; Park and Yim, 2016 ; Neumann et al, 2018 ; Jungreitmayr et al, 2021 ; Netz et al, 2021 ). In these studies, measurement of muscle strength, balance, and flexibility was mostly performed via stand-alone tests, such as chair rise ( Geraedts et al, 2021 ; Jungreitmayr et al, 2021 ; Netz et al, 2021 ) or uni-pedal stance ( Jungreitmayr et al, 2021 ; Netz et al, 2021 ), via short physical performance battery ( Van Het Reve et al, 2014 ; Treacy and Hassett, 2018 ; Van den Helder et al, 2020 ) or Senior Fitness Test, respectively, ( Rikli and Jones, 2013 ; Neumann et al, 2018 ).…”