Does the concept of power-to-weight ratio being the sole determinant of Zone 2 performance still hold water when considering the complex interplay between body composition, muscle fiber distribution, and aerobic capacity? While its well-established that a higher power-to-weight ratio leads to improved performance, is it not possible that the nuances of body weights impact on Zone 2 performance are being oversimplified?
Some studies suggest that a higher body fat percentage may actually be beneficial for endurance athletes, as it provides a greater energy reserve for long-duration activities. Conversely, very low body fat percentages can lead to reduced power output and decreased endurance performance. Does this not challenge the conventional wisdom that lighter is always better for Zone 2 performance?
Furthermore, what role do muscle fiber distribution and aerobic capacity play in determining Zone 2 performance? Is it not possible that an athlete with a higher proportion of slow-twitch fibers and a higher VO2max may be able to perform at a higher level in Zone 2, even with a slightly higher body weight?
The assumption that a certain power output is required to maintain a given pace in Zone 2 seems overly simplistic. Are there not other factors at play that can influence an athletes ability to perform in this zone, regardless of their body weight? Can we truly say that body weight is the primary determinant of Zone 2 performance, or are we neglecting other crucial variables in our analysis?