It is a prospective randomized controlled trial. In this project, it is aimed to examine the effect of telerehabilitation-based instrumental and noninstrumental respiratory exercise program on lung capacities. For this reason;

• Contributing to the literature by comparing the effect of breathing exercises with and without instruments on lung capacities,
• It is aimed to be a resource for the effective use of respiratory exercise, which has a high effect on lung capacities, in treatment.

In addition, with the data obtained, it is aimed to decide and apply the exercise that is more effective in the treatment of respiratory diseases quickly.

Socio-demographic data will be questioned by using the Demographic Data Form; participants, age, gender, height, weight, marital status, smoking and alcohol use, presence of disease, whether they are included in a different exercise program, dyspnea, severe nausea and vomiting. The cases will be randomized into two groups: non-instrumented breathing exercises group and instrumented breathing exercises group. The physical activity status of the individuals participating in the study will be questioned using the International Physical Activity Questionnaire-Short Form (IPAQ-SF) at the beginning and end of the study. Pulmonary Function Test (PFT) will be used to measure the lung capacity of the participants.

Instrumented breathing exercises will be performed for 8 weeks, 2 days a week with the telerehabilitation program, 3 days a week as a home program, 5 days a week in total, starting with 1 set of 15 repetitions and the program will progress with progression. Diaphragmatic breathing and thoracic extension exercises will be applied as non-instrumented breathing exercises. For 8 weeks, 2 days a week with telerehabilitation method, 3 days a week as a home program, 5 days a week in total, 1 set of 10 repetitions for each exercise and the program will progress with progression. At the end of 8 weeks, all evaluations of the participants in both groups will be repeated.

Breathing exercises are one of the components of pulmonary rehabilitation that have been widely used in clinical practice for many years. Exercises such as pursed lip breathing, local expansion, diagraphmatic breathing, holding at maximum inspiration are some of the breathing exercises in the literature. Such breathing exercises dilate the airways, facilitate gas exchange in the alveoli, increase the amount of oxygen reaching the cells, and normalize respiratory functions. Diaphragmatic breathing is a technique that uses the contraction of the diaphragm muscle to increase the length of the diaphragm and the efficiency of breathing, resulting in more efficient expiration. Studies have shown that diaphragmatic breathing reduces respiratory workload and dyspnea, increases respiratory efficiency and exercise tolerance, and improves minute ventilation by reducing the number of breaths. The aim of respiratory exercises is to maintain and improve respiratory function and to increase the amount of air entering and leaving the lungs. The amount of incoming and outgoing air is called lung volume and capacity. Lung volumes and capacities; forced expiratory volume in one second (FEV1), forced vital capacity (FVC), Tiffeneau index (FEV1\FVC), peak expiratory flow (PEF) will be compared.

There are also many therapeutic devices developed among respiratory exercises. The incentive spirometer is one of these exercise devices. The incentive spirometer can be used for two different purposes: volume-oriented or flow-oriented. Studies have shown that volume-oriented devices are more effective in improving respiratory parameters than flow-oriented devices. In the literature, it is stated that the use of spirometers increases lung capacities, provides more comfortable air entry into the alveoli and facilitates gas exchange.

Telerehabilitation method is defined as the remote delivery of rehabilitation services by rehabilitation specialists with certain procedures and protocols using tools such as information and communication technologies. With telerehabilitation, it is aimed to follow patients at home, to carry rehabilitation services far away and to provide health services directly where the patient is.

In this project, it is aimed to examine the effect of telerehabilitation-based instrumental and noninstrumental respiratory exercise program on lung capacities. In the literature, there is no study comparing the efficacy of telerehabilitation-based instrumental and noninstrumental respiratory exercise program on healthy young adults. Thus, this project will contribute to the literature and will be a preliminary study for advanced research in this field.

Inclusion Criteria:

• Female/male young adult between the ages of 18-30 December,
• Who volunteered to participate in the study,
• Without a known disease
• Volunteers who do not have psychological, cognitive and emotional problems

Exclusion Criteria:

• Cigarette and alcohol users
• People with severe cardiopulmonary disorders
• People with postural disorders (such as scoliosis,kyphosis...)
• Unstable angina, has it been recently, pulmonary embolism
• People with obesity/diabetes
• Mental or cognitive impairment that will affect mental cooperation
• People with severe nausea, vomiting attacks
• People with dyspnea
• People with orthopedic disorders that will affect exercise performance