Do You Need to Go All-Out to Measure Your Cardio Fitness?
Submaximal fitness tests can estimate aerobic capacity without maximal effort, but accuracy depends on the protocol and the person tested.
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Maximal Exercise Test
A maximal exercise test raises workload toward the person's highest capacity, with results interpreted using the specific protocol's criteria.
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A maximal exercise test is an exercise assessment in which workload is progressively increased until the participant reaches maximal or near-maximal exercise capacity according to the protocol’s criteria. As workload rises, cardiopulmonary and metabolic responses such as heart rate, ventilation, oxygen consumption, and carbon dioxide production generally increase .1
Maximal tests can use different exercise modes and protocols, including cycle-based or treadmill-based procedures. The variables measured and the criteria used to characterize maximal effort depend on the purpose and design of the test, so “maximal exercise test” does not refer to one single standardized procedure .1
This is distinct from a submaximal exercise test, which deliberately keeps exercise below maximal capacity and may hold workload at a fixed lower intensity long enough for physiological responses to approach a steady state. Results from either type of test should be interpreted in relation to the protocol used .1
References
- Wheatley CM, Kannan T, Bornschlegl S, Kim CH, Gastineau DA, Dietz AB, Johnson BD, Gustafson MP Conducting Maximal and Submaximal Endurance Exercise Testing to Measure Physiological and Biological Responses to Acute Exercise in Humans. Journal of Visualized Experiments. 2018. About this source DOI
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