AEROBIC EXERCISE
FOR DIVERS
By Gretchen Ashton, CFT, SFT, SFN, NBFE
T
he “runner’s high,” a “feel better” sensation often experienced by long-distance runners, is generally
attributed to high levels of endorphins in the brain. Researchers have known for some time that exercise
increases endorphin production. In addition to improving the efficiency of the heart, lungs and vascular
system, aerobic training can actually produce an anti-depressant type of effect including improvements in
emotional and intellectual health.
Aerobic exercise improves mood stability often allowing those under a doctor’s care to reduce anti-depressant and anxiety medications. Improvements in self-esteem, increased confidence, and a more positive outlook for the future are also benefits of the effects of physical activity on brain chemistry.
Studies indicate that aerobic
exercise improves mental
acuity resulting in better concentration, enhanced ability
to direct thoughts, and improved memory, all important
mental performance activities
for divers. Further neurophysicological advantages
include a reduction in the
symptoms of diseases such as
Parkinson’s, improved sleep
patterns, and diminishing
the craving responses during
smoking cessation.
Cardiorespiratory fitness is
essential for scuba diving. Incorporating aerobic exercise
in the diver’s daily routine is
definitely not a “no-brainer”
but it isn’t difficult to achieve. The results of the above-mentioned studies were accomplished in only five
weeks with 30 to 60 minutes of exercise three times a week.
Examples of aerobic exercise are walking, jogging, running, swimming, rowing, cycling, jumping rope,
aerobics classes, and dancing. Fitness centers and home gyms provide equipment such as treadmills,
stairclimbers, ellipiticals and exercise bikes. Aerobic exercise may also be performed outdoors almost
anywhere and can be a family activity, social time for moms while children are at school, or tranquil time
alone.
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