@explain.reels on Instagram: "This video shows a person performing an extreme vertical leg raise or high kick indoors, which highlights real facts about flexibility, balance, and human biomechanics. Achieving this level of leg extension requires a combination of hip joint mobility, hamstring and hip flexor flexibility, core strength, and neuromuscular control developed through consistent training such as dance, martial arts, yoga, or gymnastics. Scientifically, the hip is a ball-and-socket joint