Complex sentence: Kindred has cerebral palsy which effects the right side of his body, he therefore competes in the S6 (butterfly), SM6 (medley) and SB7 (breaststroke) classifications.
Split into simpler sentences: Kindred has cerebral palsy, which effects the right side of his body. He competes in the S6 (butterfly), SM6 (medley) and SB7 (breaststroke) classifications.