Sentence:  While some lifters insist that <WSD>supersets</WSD> must consist of consecutive exercises for the same bodypart, others would bet their weight belts that <WSD>supersets</WSD> involve opposing bodyparts. 
Meaning of the word marked with <WSD> tags:  Two or more different physical exercises performed back-to-back, without a period of rest between them. The exercises may employ the same muscle group, or opposing muscle groups.