Madders began working as a physiotherapist. She published her first book in 1955: a short collection of exercises for women entitled
Before and After Childbirth. During the 1950s, Madders also did occasional radio broadcast work, first under the pseudonym "Mary Orchard" and then under her own name. She was the introducer of the regular Women's Hour programme serving the
Midlands, and she also contributed items to the English Magazine programme for overseas listeners. Around 1952, Madders organized a "family club" in Birmingham, where mothers could learn relaxation techniques and bring their children to play together. They also operated a clothing and toy exchange and organized an on-call "flying squad" of members who could help out mothers in need of emergency childcare or other assistance. Within 18 months of the club's creation, its funding and financial responsibility was taken on by the local government
education authority, The Family Club was later credited by Madders as being the earliest formal children's play group in Britain. The course, which was unique within British education at the time, provided school teachers with improved skills for helping students navigate physical, mental, and social health issues. During the 1960s, Madders also taught relaxation techniques to patients referred to her by a
migraine clinic in Birmingham. She spent six years conducting research for a study on migraines. Madders and Hay reported that 69 of their patients had demonstrated improvement by experiencing fewer or milder cases of migraines after the treatment. In the early 1970s, Madders supported the establishment of
Relaxation for Living, the first relaxation charity in Britain. Working with the organization's founder, Amber Lloyd, Madders spearheaded training for Relaxation for Living teachers, provided technical advice and national publicity for their work, and eventually served as chairwoman for the organization. In 1982, Madders was working as a physiotherapist at
Charing Cross Hospital and giving talks on stress at seminars for medical professionals, and in 1988 she presented a six-part television series for
ITV entitled
Stress. She continued to teach relaxation classes after retirement. == Personal life ==