The epidemic of overweight and obesity and their
complications, including insulin resistance (IR) and type 2 diabetes mel-
litus (T2DM), is rising worldwide both in developed and in
developing countries [1], and in all age groups [2]. It is also an
important health problem in Mexico where there is a high
prevalence of overweight and obesity [3]. Both dietary caloric
restriction and exercise have been reported to reduce obesity [4,
5]. A study in young, healthy, nonsmoking women during 2-mo
of aerobic cycling training with 60-min duration, three times a
week induced significant changes in the parameters of body