http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3001541/
Kenneth A. Myers, BSc
Abstract
The
review paper is a staple of medical literature and, when well executed
by an expert in the field, can provide a summary of literature that
generates useful recommendations and new conceptualizations of a topic.
However, if research results are selectively chosen, a review has the
potential to create a convincing argument for a faulty hypothesis.
Improper correlation or extrapolation of data can result in dangerously
flawed conclusions. The following paper seeks to illustrate this point,
using existing research to argue the hypothesis that cigarette smoking
enhances endurance performance and should be incorporated into
high-level training programs.
Performances
in endurance sports have been shrouded in controversy for the past 30
years because many athletes, intent on winning races and achieving
faster times, have turned to banned performance-enhancing drugs. The
World Anti-Doping Agency’s 2009 list of prohibited substances and
methods includes erythropoietin, other erythropoiesis-stimulating agents
and various methods designed to enhance oxygen transfer.1
The effects of these agents and methods are thought to be primarily
beneficial in endurance sports such as distance running and cycling.
Despite the prohibition, the use of these drugs and techniques persists,
as evidenced by continued positive results of drug tests in and out of
competition.
Altitude training has also become common
among endurance athletes, because it has been associated with an
increase in performance and in serum hemoglobin and hematocrit levels.
However, this response is transient — the physiologic variables return
to their baseline soon after the athlete returns to sea level.2 This moderate performance benefit is outweighed by several severe and life-threatening risks, including pulmonary edema,3 cerebral edema4 and severe flatulence.5
While
athletes endanger their careers and well-being in attempts to gain
small benefits with illicit or inconvenient practices, a legal,
nonprescription alternative has been largely ignored by athletes,
coaches and exercise physiologists alike. Cigarette smoking has been
shown to increase serum hemoglobin and hematocrit levels, increase lung
volume and stimulate weight loss — characteristics all known to enhance
performance in endurance sports. This paper will discuss the potential
benefits of cigarette smoking to endurance performance and make
recommendations as to how individuals and national bodies could
effectively integrate this practice into high-performance training
programs.
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