Yoga poses tend to focus more on hip opening than hip stability. But developing functional strength in the hip adductors, flexors, extensors (hamstrings), abductors, and internal and external rotators is important to prevent sacroiliac (SI) and pelvic floor dysfunction. But the adductors, or inner thighs, are a particularly common weak link in the hip joint. In yoga, you often stretch the inner thighs in poses like Upavistha Konasana and Baddha Konasana, but have few opportunities to strengthen them. Sliding Side Splits are a wonderful way to strengthen your inner thighs and build hip stability. You could do a version of this using the Pilates reformer or the adductor machine at the gym. At home or in a yoga studio, you can use a blanket.
Yoga + Weights: Build Whole-Body Strength in Warrior III
Work your triceps and strengthen your core with this amplified take on Warrior III.