The use of masks is a necessity due to the current pandemic conditions. The aim of the study is to examine the effects of the use of masks during effort on dyspnea and fatigue with hemodynamic parameters.

The use of masks is a necessity due to the current pandemic conditions.There are studies on many parameters such as the effect of mask use on saturation (sp02), heart rate (HR) and blood pressure (BP). To determine whether there is a change in the performance of individuals in the masked and unmasked exercise test during exertion due to the scarcity of masked and unmasked maximal exercise tests and the insufficient measurement of the degree of fatigue felt, and to determine whether there is a change in the performance of individuals with and without mask, and to determine the hemodynamic responses in the body together with dyspnea and felt fatigue. This study will be conducted in order to examine the effect on

Inclusion Criteria:

• Volunteering to work,
• To be healthy,
• 18-25 age range.

Exclusion Criteria:

• Unstabil angina pectoris,
• Atrial arrhythmia,
• Uncontrollable asthma,
• Pa02 < 50 mmHg,
• PaCO2> 70mmHg,
• Individuals with valve disease
• Tachycardia, bradycardia,
• Individuals with a resting systolic blood pressure of 200 mmHg
• Smoking,
• Presence of effective clinical conditions such as nasal deviation.