ergonometri

Ergonometri, also known as ergometry in some contexts, is a term used to describe the measurement of work output or energy expenditure by humans during physical activity. The word derives from Greek ergon (work) and metron (measure). In practice, ergonometry encompasses methods and devices that quantify the physiological and mechanical cost of tasks, often to assess efficiency, performance, or workload.

A central concept in ergonometry is the use of ergometers—devices that impose a controlled amount of work and allow measurement of corresponding responses. Common examples include cycle ergometers, treadmill ergometers, and arm ergometers. Key measurements typically include mechanical power output (watts), oxygen consumption (VO2), heart rate, and sometimes carbon dioxide production. Indirect calorimetry and metabolic equivalents (METs) are used to estimate energy expenditure. Electromyography may be employed to study muscle activation patterns during task performance.

Ergonometry serves multiple purposes. In sports science, it helps evaluate athletic performance and training adaptations. In clinical and rehabilitation settings, it assesses functional capacity and guides conditioning programs. In occupational health and ergonomics, it contributes to workload assessment, task design, and safety by quantifying energy demands and identifying excessive or unsustainable physical loads.

Standardization and calibration are important in ergonometric work to ensure comparability of results across individuals and settings. Individual factors such as age, sex, fitness level, body composition, and motivation influence measurements, as do environmental conditions. While closely related to broader ergonomics, ergonometry focuses specifically on quantifying energy cost and work output to inform design, health, and performance decisions.