04/27/2026
Durability +1 is a strength-and-endurance workout built around one simple idea: stay solid. Squat holds and squats work the quads, glutes, and core, helping the legs build staying power as well as strength. Then the focus shifts to the upper body with plank holds, shoulder taps, and push-ups, which train the chest, shoulders, arms, and deep core muscles to stay stable under pressure. This routine is especially good for building muscular endurance, posture, joint stability, and full-body control!