The group fitness class - one of many created by the Auckland, New Zealand-based Les Mills gym - mixes music with weights for a strength and cardio workout that uses lots of repetitions of a variety ...

DALLAS - Some group exercise classes involve aerobics steps. Some involve small hand weights. But a workout called Body Pump involves not only those two exercise tools but also barbells weighing up to ...

This routine will give you the tools you need to target every muscle group—without burning out.