Related Experiment Video
Updated: Jan 16, 2026

Author Spotlight: Assessing the Reliability of Doppler Ultrasound in Measuring Leg Blood Flow
Published on: December 15, 2023
Contribution of flow state to the discrepancy between perceived exercise intensity and physiological intensity during
Satoshi Takinami1, Yasushi Nakatani2, Yumie Ono3
1Department of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo, 112-8551, Japan.
Background:
The flow phenomenon, achieving a heightened state of concentration, is characterized by an autotelic experience, which may reduce the perception of physical exertion during sports activities. It has been extensively documented in sports and is associated with exceptional performance. However, despite comprehensive descriptions of the autotelic experience in flow, the physiological mechanisms underlying flow remain elusive, limiting its reproducibility and broader application. This study aimed to elucidate the contribution of flow to the discrepancies between perceived exercise intensity and physiological intensity during endurance exercise using an exercise bike.
Methods:
We assessed specific conditions conducive to flow during endurance exercise on a bicycle ergometer. Flow states were evaluated using a shortened version of the Flow State Scale, whereas subjective perceptions of exercise intensity were measured using the Rating of Perceived Exertion (RPE). Physiological responses were monitored by measuring heart rate (HR), oxygen consumption, breathing frequency, ventilation, and oxy- and deoxy-hemoglobin levels for changes in cerebral oxygenation at the prefrontal cortex assessed using near-infrared spectroscopy.
Results:
Participants were categorized into RPE alleviation and escalation groups to examine individual differences in perceived exertion. RPE changes significantly differed between the two groups (p = 0.0002), despite no significant difference in HR changes (p = 0.36). The discrepancy ratios between perceived and physiological exercise intensity also significantly differed between groups (p = 0.001) and were negatively correlated with flow state levels (r = - 0.56).
Conclusions:
These findings advance our understanding of the physiological and neurological correlates of flow states during physical activity, with potential applications extending beyond sports performance enhancement to domains such as education and arts.
More Related Videos
09:33Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise
Published on: December 19, 2024
07:26Conducting Maximal and Submaximal Endurance Exercise Testing to Measure Physiological and Biological Responses to Acute Exercise in Humans
Published on: October 17, 2018
Related Concept Videos
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be...
Exercise Stress Test
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Steady Flow of a Fluid Stream
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...