Final answer:
Assessments of muscular strength and endurance should be introduced in Phase 1 of the ACE IFT Model.
Step-by-step explanation:
Assessments of muscular strength and endurance should be introduced in Phase 1 of the functional movement and resistance training component of the ACE IFT Model.
In Phase 1, the focus is on stability and mobility exercises, which are important for establishing a solid foundation before progressing to more challenging exercises. Assessing muscular strength and endurance helps determine a client's baseline fitness level and sets appropriate goals for their training program.
During Phase 1, assessments of muscular strength and endurance can include exercises such as push-ups, squats, and planks, which target major muscle groups and provide valuable information about a client's current level of strength and endurance.