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Sub-threshold-intervals (noun)

Intervals of low intensity, usually aerobic, used to improve fitness and endurance.

Example usage: I'm doing sub-threshold-intervals this weekend to build up my stamina.

Most used in: Cycling, running and triathlon training.

Most used by: Amateur and recreational athletes.

Popularity: 8/10

Comedy Value: 3/10

Also see: Sweet Spot, Tempo Intervals, Threshold Intervals, Cruise Intervals,

What Are Sub-Threshold Intervals?

Sub-threshold intervals are a type of cycling workout used to develop a rider's aerobic capacity and endurance. This type of cycling training is done at a low intensity, often just below the rider’s lactate threshold. The idea is to work out at a level that is just below the threshold, which allows the rider to ride for a relatively long duration without feeling fatigued.

Sub-threshold intervals involve riding for a set period of time at a constant speed or power output that is just below the rider’s lactate threshold. This type of training is often used to build the rider’s aerobic capacity and endurance, as it allows them to ride for longer periods of time without reaching the point of fatigue. Studies have also shown that sub-threshold intervals are effective for increasing a rider’s VO2max, which is an important indicator of aerobic fitness.

Sub-threshold intervals are often used in conjunction with higher intensity interval training in order to maximize the benefits of both types of training. By incorporating both low and high intensity workouts, a rider can increase their aerobic capacity and endurance while also improving their anaerobic capacity and overall fitness.

The Origin of the Term 'Sub-Threshold-Intervals' in Cycling

The term 'sub-threshold-intervals' first emerged in the early 2000s when the sport of cycling started to become more structured and analytical. It was first used by renowned cycling coach Hunter Allen and Dr. Andrew Coggan in their book Training and Racing with a Power Meter, which was released in 2006. The term was used to describe brief periods of time during a workout where a cyclist would ride at an effort level below their 'threshold', which is the maximum sustainable effort a cyclist can maintain for an extended period of time.

The concept of sub-threshold-intervals was first developed to help cyclists monitor their performance, as it allowed them to track how their body was responding to different levels of effort and intensity. It also allowed cyclists to better understand their limits and how to best use their energy during a race or workout. Today, sub-threshold-intervals are still widely used by cyclists and other athletes to improve their performance and build endurance.

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