Before revision: Leisure centres are staffed by attendants who carry out a range of tasks to help and supervise the people using the leisure centre facilities, and act as swimming pool lifeguards, gym instructors and coaches, offering advice, motivation, and expertise to users.
After revision: 'sLeisure centres are staffed by attendants who carry out a range of tasks to help and supervise the people using the leisure centre facilities, and act as swimming pool lifeguards, gym instructors and coaches, offering advice, motivation, and expertise to users.