Traditional set method and drop set method are widely used training methods in bodybuilding. Studies have shown that these methods have similar effects on muscle hypertrophy, increasing lean body mass and other metabolic variables when applied in equal volumes. However, there is no comparative study on the effects of these methods on fatigue and proprioceptive mechanism. In this context, it is thought that it is important to reveal the effects of traditional and drop set training methods on these two variables in order to take necessary measures to protect athlete health and improve athlete performance.

Traditional set method and drop set method are widely used training methods in bodybuilding. Studies have shown that these methods have similar effects on muscle hypertrophy, increasing lean body mass and other metabolic variables when applied in equal volumes. However, there is no comparative study on the effects of these methods on fatigue and proprioceptive mechanism. In this context, it is thought that it is important to reveal the effects of traditional and drop set training methods on these two variables in order to take necessary measures to protect athlete health and improve athlete performance.

Laser cursor-assisted angle repetition test was used for proprioception assessment. A coordinate plane with different movement angles was fixed on a wall and the person was positioned 1 meter from this wall. The laser pointer was fixed on the person's arm for shoulder proprioception measurement, 5 cm above the elbow to avoid being affected by other joints, 5 cm above the person's wrist for elbow joint proprioception and fixed on the person's second metatarsal bone for wrist proprioception.

A personal information form was used to obtain demographic information. The height measurements of the participants were made with a wall-mounted holtain stadiometer and body weight measurements were made with a Tanita MC-580 body analyser. BMI was calculated by dividing body weight by the square of height (kg/m2).

Laser cursor-assisted angle repetition test was used for proprioception assessment. A coordinate plane with different movement angles was fixed on a wall and the person was positioned 1 meter from this wall. In the next step, the person's eyes were closed to prevent visual control and was asked to repeat the same joint position 3 times. The coordinate point where the individual brought the arm was marked on the coordinate plane and this process was repeated 3 times for shoulder flexion and abduction. The deviations at the given angles were measured on the horizontal (X) and vertical (Y) coordinate axes on the coordinate plane, the amount of linear deviation from the target was calculated using the Pythagorean theorem (√(x^2+y^2 )), and the arithmetic mean of the 3 deviations was recorded.

Proprioception level= [(√(x^2+y^2 ))+(√(x^2+y^2 ))+(√(x^2+y^2 ))]/3

Myoton PRO® (Myoton AS, Tallinn, Estonia) muscle palpation device was used to assess fatigue, and the dynamic stiffness parameter was taken as the basis. The stiffness value is calculated as the maximum acceleration (N/m) of oscillation and deformation in the tissue sensed by the transducer. The increase in muscle dynamic stiffness has been associated with fatigue level. Before the measurement, the athletes' pectoralis major, deltoideus and triceps brachii muscle reference points were determined and marked, and measurements were taken over these points. The athletes were asked to keep their muscles relaxed throughout the measurement in order not to affect the tissue stiffness and the application was performed at room temperature. All measurements were taken with the participants lying on the stretcher and the device was kept upright to minimise the effect of gravity on tissue properties, with three strokes on the reference points of the muscles.