RT Journal
A1 Tucker AM
T1 ASsessing cardiovascular risk factors in national football league players—reply
JF JAMA
JO JAMA
YR 2009
FD September 16
VO 302
IS 11
SP 1166
OP 1166
DO 10.1001/jama.2009.1328
UL http://dx.doi.org/10.1001/jama.2009.1328
AB 
Our protocol was designed to minimize blood pressure measurement variability across all 12 teams. A validated automated blood pressure measurement device chosen by the authors was used by all teams. As noted in the study methodology, potential cuff size errors that can contribute to measurement inaccuracy were addressed by having researchers measure each player's biceps circumference and assign the appropriate cuff size per the manufacturer's instructions.