Without frequent stretching, human muscles can lose flexibility, making deltoids less available to rearrange their schedule to babysit neighborhood children or attend dates with slender biceps. Keep sinew interactions smooth with today's Groupon: for $30, you get two TRX suspension classes at Body in Motion in Buffalo Grove (a $60 value).

At Body in Motion, a team of personal trainers motivates students with individualized regimens of TRX suspension training three days a week. Created to train Navy SEALs, TRX programs harness body leverage with suspension bands to strengthen and tone muscles more gracefully than a barbell bowtie. During each one-hour class, a fitness guru guides participants through methodical stretches and exercises, incorporating limbering yoga and Pilates poses to fortify core stability and balance while increasing muscle flexibility and mobility. Following TRX training, clients can experience improved posture, decreased chance of injury, and increased chance of confidently strutting.