- 
           					During the break in play, players on both teams performed stretching routines and warm-up exercises, tossing footballs back and forth on the field and later practicing punt and kicks. 
            					  		    					
           					 WSJ: Super Bowl: The Night That (Half of) the Lights Went Out 
- 
           					For inspiratory muscle warm-up, because the power-boosting effect of warm-up exercises typically dissipates within half an hour, an athlete would use the device to do two sets of 30 breaths immediately before the sporting event for best results. 
            					  		    					
           					 FORBES: Proper Breathing Can Improve Sports Performance By 15 Percent 
- 
           					The warm-up is a series of exercises with the five basic vowel sounds. 
            					  		    					
           					 WSJ: Bill Schuman: A Teacher of Note Behind Opera's Stars | Creating 
- 
           					To warm up, she'll do balance-based exercises including a one-arm, one-leg plank to strengthen her core. 
            					  		    					
           					 WSJ: To Stay on Top in Tennis, Time Off Counts 
- 
           					Warm up inside, and incorporate stretches (especially for the hamstrings) as well as core-strengthening exercises such as mini sit-ups, crunches, or working an exercise ball. 
            					  		    					
           					 CNN: Shoveling snow? How to protect your back (and your heart)