"People are incredibly innovative in their efforts to screw up training."
- Charlie Francis, Canadian Speed Coach
When it comes to sport training and many training systems, there are aspects that are poorly managed or misused in their application. One that is very common is the lack of understanding of physiology as it relates to bioenergetic training parameters and workload compatibility in sport.
Programs and coaches may frequently implement high lactate training loads into their program for a variety of reasons. Exhaustive shuttle runs, suicides, gassers, extended sets, and 'circuit' style workouts are all examples of lactic training. The problem is even though they may be performed with perceived 'maximal effort', in order to accomplish the prescribed work, individuals are training at a medium intensity. This level of intensity is too slow to develop speed. They teach muscles to behave slowly. Furthermore, the recovery requirements are high and thus cut into the ability to perform more intensive work that would directly improve speed and explosive strength.
There is not much justification for the frequent use of lactic training loads when the nature of most field/court based sports is alactic/aerobic with varying degrees of lactate influence. This is illustrated by the influence of bioenergetics on mitochondrial concentration in skeletal muscle. Mitochondria are responsible for energy production and oxidative potential. More mitochondria means greater energy supply and faster recovery. Mitochondrial concentration is elevated in skeletal muscle by anaerobic-alactic and aerobic training, while anaerobic-lactic training results in their destruction. Lactate threshold training must be appropriately prescribed and closely monitored.
This is just one example of why training loads and parameters must have compatibility to ensure the greatest transfer into sport performance improvement. The sports training world has fallen victim to a number of gimmicks in the name of profitability. Gimmicks such as high speed or anti-gravity treadmills, ladder drills, and exhaustive circuit-based training are examples of training that has very little to no carry over into athletic performance. Read more about this here
For athletes and individuals who take their training and health seriously, your results are too important for someone to 'screw it up'.