The term "high weight - 90% 1RM" is associated with which type of strength training?

The term "high weight - 90% 1RM" refers to training that focuses on maximum strength. One-repetition maximum (1RM) is the maximum amount of weight that a person can lift for a single repetition of a given exercise. Training at 90% of 1RM signifies lifting heavy weights, which directly targets the development of maximum strength.

This type of training is characterized by lower repetitions (usually between 1-5) and longer rest periods to allow for optimal recovery and performance on subsequent lifts. The high intensity of training at this level is aimed at increasing the neuromuscular adaptations necessary for enhancing overall strength.

While strength endurance involves lifting submaximal weights for a greater number of repetitions to improve the ability to sustain muscular contractions, and elastic and plyometric strength focus on the speed and power aspects of strength training, none of these provide the same focus on maximal effort and heavy loads that training at or near 90% of 1RM does. Thus, the correct association of "high weight - 90% 1RM" is clearly with maximum strength.