Complex sentence: This resulted in Dr Steele being approached by a friend of Charlie Walduck in 2004, who at that time weighed 44st, was unabel to walk alone and effectively confined to his home.
Split into simpler sentences: This resulted in Dr Steele being approached by a friend of Charlie Walduck in 2004. At that time Charlie weighed 44st, was unable to walk alone and was effectively confined to his home.