What is the primary energy system associated with a 10RM Seated Row?

The primary energy system involved in a 10RM (10 repetition maximum) seated row is anaerobic glycolysis. This system is predominant during high-intensity activities lasting from approximately 30 seconds to 2 minutes, where the body relies on the breakdown of glucose without the need for oxygen.

During a 10RM exercise, the effort is significant enough to create a demand for rapid energy production, which anaerobic glycolysis can meet. This process leads to the production of ATP (adenosine triphosphate) from glucose while generating lactate and requiring a high level of muscle recruitment. The intensity of working with a 10RM weight also supports the predominance of this energy system as it is more strenuous than the thresholds typically associated with aerobic metabolism, which is utilized during less intense, longer-duration tasks.

The other options relate to different contexts of energy production: aerobic metabolism is primarily used during longer, steady-state activities; circuit training is a format of exercise rather than an energy system; and creatine phosphate serves as a quick burst energy source for very short, high-intensity efforts, typically under 10 seconds. Thus, for a 10RM seated row, anaerobic glycolysis is the most relevant energy system.