After completing an internship and thesis, his career led him into various hospitals in the city and suburbs, where he developed medical innovations and performed research.
As a member of the parish patronage committee, Michaux's moral and religious beliefs led him to establish a type of gymnastics specifically intended for Christian Patriots.
Following the end of the First World War, Michaux organised a gymnastic competition in his hometown of Metz.
At his funeral in November 1923, many representatives of both the military and the medical profession as well as over 3,000 gymnasts were in attendance.
His involvement in the fields of sports and business earned him many accolades, including being appointed as a Knight of the National Order of the Legion of Honour by Marshal Ferdinand Foch.
Michaux was awarded the Cross of Commander of the Order of St.
Gregory the Great by Pope Pius X, and in 1911 he received the Grand Cross of the Order of St.