Gisele Bündchen, 46, swears by this plank variation for full-body strength and better posture, so I tried it (and wow)

Gisele Bündchen, the 46-year-old supermodel, credits this plank variation for her full-body strength and better posture. After seeing her perform a one-legged plank on Jimmy Fallon's show, reporter tried the exercise and felt a noticeable difference. This plank variation targets multiple muscle groups simultaneously, including the abs, arms, glutes, and upper body, while also enhancing balance and stability.

To perform the variation, start in a high plank position, lift one leg behind you, hold, then lower and repeat. The leg lift and push-up add instability, challenging your core and glutes to work harder to maintain alignment. Bündchen swears by this move, claiming it's "basically good for everything."