"Renewed vigor" means gaining a fresh burst of energy, enthusiasm, or strength to continue or approach something with more determination and intensity than before. Full definition
The GRG thinks so and Brolin is just barely holding onto his # 5 placement with renewed vigor from Christoph Waltz in Big Eyes. (awardswatch.com)
And a change in positions can provide a spark of renewed vigor. (edutopia.org)
The successful implementation of ESSA, however, will depend on renewed vigor from the nation's principals to ensure that states and districts fulfill their obligations. (naesp.org)