Related Experiment Video
Updated: Sep 9, 2025
Using an Ingestible Telemetric Temperature Pill to Assess Gastrointestinal Temperature During Exercise
Published on: October 7, 2015
[Impact of psychomotor performance and core body temperature on exercise performance in athletes]
Robert Skalik1,2, Anna Janocha1, Wojciech Kustrzycki1,3
1Politechnika Wrocławska, Wrocław, Polska (Wydział Medyczny, Katedra Nauk Przedklinicznych, Farmakologii i Diagnostyki Medycznej).
Background:
The development of research on exercise physiology in the last several years has allowed to better understand mechanisms affecting exercise performance in athletes. Despite this, the causes of exercise intolerance in athletes are not fully elucidated. The exercise performance is a complex process and regardless of the proper functioning of the cardiovascular system may be subject to significant changes under the influence of nervous system and thermoregulatory mechanisms. The purpose of this work is to assess the relationship between psychomotor performance (sprawność psychomotoryczna - SP), core body temperature (Tc) and exercise performance parameters as measured by spiroergometry (cardiopulmonary exercise testing - CPX) and the diagnostic accuracy of neurothermometabolic index (NTMI) as a new marker of exercise performance in athletes.
Material And Methods:
Forty-four healthy athletes participated in the study. Each of the examined athletes underwent CPX for the assessment of ventilatory parameters (maximal oxygen consumption - VO2max, minute ventilation - VE, ventilatory equivalent for carbon dioxide at anaerobic threshold - VECO2AT, maximal carbon dioxide output - VCO2 and anaerobic threshold), SP tests (average reaction time to light stimulus, the number of correctly received light stimuli, number of missed light stimuli) before and immediately after CPX. In addition, Tc was continually measured during CPX. Followingly, NTMI was calculated using Tc during the maximum exercise, oxygen consumption at anaerobic threshold and average reaction time to light stimulus as measured after CPX.
Results:
A significant relationship was found between Tc during the maximum effort in CPX and SP after CPX. A significant relationship between SP before CPX and VECO2AT during CPX was also confirmed. Psychomotor performance shortly after CPX was also significantly related to VCO2. In addition, NTMI was significantly associated with CPX parameters.
Conclusions:
The study results confirmed the relevant relationship between SP, Tc during the maximum exercise and ventilatory parameters as measured by CPX in athletes. Neurothermometabolic index is a reliable marker of exercise performance in athletes. Med Pr Work Health Saf. 2025;76(3):179-192.
Related Concept Videos
01:28Factors Affecting Body Temperature
Factors may include:
01:25Body Temperature
01:13Equipments Used to Measure Body Temperature
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
01:19Assessing Body Temperature - Temporal Artery
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
01:14Assessing Body Temperature - Axilla
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
01:14Assessing Body Temperature - Oral
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...