Sudden cardiac death (SCD) is the number one cause of on-duty firefighter death. It is most likely to occur in adults who are not physically fit that engage in sudden vigorous exercise. Cardiorespiratory physical fitness (also known as aerobic fitness) is a major heart disease risk factor. In FIT and FIRED UP, the study investigators looked at the influence of cardiorespiratory fitness on blood pressure, heart rate, and other heart markers taken from the blood before and after a vigorous exercise test to maximal effort among firefighters from a local fire department in Connecticut. In addition, the investigators also looked at how lifestyle habits including physical activity, nutrition, stress, and sleep may influence our findings. It was hypothesized that aerobically fit firefighters would show less stress on their heart than unfit firefighters.
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Change in Ambulatory Blood Pressure (ABP)
Timeframe: ABP was measured at the conclusion of Visits 3 and 4 during weeks 3 and 4.
Change in Resting Blood Pressure
Timeframe: Resting BP was measured during Visits 3 and 4 during weeks 3 and 4.
Change in Fasted Blood Sampling
Timeframe: The blood sampling occurred at Visit 3 or 4 during the GEST Visit during week 3 or 4.
Change in Fasted Blood Sampling
Timeframe: The blood sampling occurred at Visit 3 or 4 during the GEST Visit during week 3 or 4.
Change in Fasted Blood Sampling
Timeframe: The blood sampling occurred at Visit 3 or 4 during the GEST Visit during week 3 or 4.
Dietary Intake
Timeframe: The questionnaire was filled out during Visit 3 or 4 at the Control Visit during week 3 or 4.
Peak Oxygen Consumption
Timeframe: The GEST took place either during Visit 3 or 4 during week 3 or 4.