Muscle oxygenation levels in smokers and non-smokers during exercise: insights from a university-based study

  • 0Department of Pulmonary Diseases, Ataturk University School of Medicine, 25240, Yakutiye, Erzurum, Turkey. bjkerget1903@gmail.com.
European journal of applied physiology +

|

Abstract

BACKGROUND

Today, as the age of smoking is decreasing, awareness of the harms of tobacco is still not at a sufficient level among young people. In our study, we aimed to compare the muscle oxygenation levels between students who smoke and those who do not smoke after the training on the harms of tobacco products.

METHODS

A total of 40 smokers and 30 non-smokers, aged 23 and studying at our university, participated between November 2024 and December 2024. Vastus lateralis muscle oxygenation was measured during the six-minute walking test (6MWT).

RESULTS

In smokers, exhaled CO, pulse at the beginning and end of 6MWT, Borg dyspnea, and fatigue scores were significantly higher than in non-smokers (p < 0.001). Maximum and minimum SmO2 levels measured at the beginning and end of 6MWT were lower in smokers (p < 0.001), while changes in SmO2 were greater in smokers (p < 0.001). Smoking level negatively correlated with maximum and minimum SmO2 and positively with ΔSmO2 (R = - 0.82, p < 0.001; R = 0.83, p < 0.001; R = 0.79, p < 0.001). Similarly, exhaled CO negatively correlated with maximum and minimum SmO2 and positively with ΔSmO2 (R = - 0.83, p < 0.001; R = 0.84, p < 0.001; R = 0.78, p < 0.001).

CONCLUSION

Smoking causes a decrease in muscle oxygenation depending on the amount smoked. We believe that this cumulative burden may be a precursor to comorbidities that develop in later ages.

Related Concept Videos

Oxygen Transport in the Blood 01:27

2.6K

Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...

Exercise and Cardiovascular Response 01:20

751

Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
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...

Respiration and Gaseous Exchange 01:20

1.5K

The intricate interplay between the cardiovascular and respiratory systems is crucial for efficiently transporting respiratory gases throughout the body. Let us explore the cardiovascular system's multifaceted functions, emphasizing its pivotal role in gas exchange.
Respiration involves the exchange of gases, especially oxygen (O2) and carbon dioxide (CO2), between the alveoli and body cells, a process facilitated by blood circulation. As a result, the cardiovascular system, which involves...

Factors Affecting Respiration 01:24

4.9K

Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:

Age: The respiratory rate in newborns ranges from thirty to sixty breaths per minute due to their higher metabolic needs. As individuals age, their metabolic rate typically decreases, which results in a slower respiratory rate.
Exercise or Physical Activity: Physical activity elevates the...

Special considerations while measuring oxygen saturation 01:19

554

Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...

Pulmonary Function Tests 01:25

312

Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...