Complex sentence: As a junior, Makarenko started as an individual gymnast but switched competing with the Russian Group under Russian Head Coach Irina Viner, she and the Russian Junior Group won the gold medal at the 2010 Youth Olympic Games.
Split into simpler sentences: As a junior, Makarenko competed as an individual gymnast but switched to competing in the Russian Group under Russian Head Coach Irina Viner. She and the Russian Junior Group won the gold medal at the 2010 Youth Olympic Games.