The Effects of Mornıng and Evenıng Runnıng on Respıratory Functıon and Lower Extremıty Strength in Pre-Adolescent Male Footballers

The objective of this study was to examine the impact of eight weeks of morning and evening running on lower extremity strength and respiratory function in 10-12-year-old male soccer players. The participants visited the laboratory 3 times with 1-day intervals before and after the training. The measurements included maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC) and the FEV1/FVC ratio, agility and functional performance tests (FPTs) for the dominant and nondominant legs. The results of investigators study indicated that morning running was more effective than other forms of exercise in developing the respiratory system. The greatest improvement in FVC, FEV1, MIP, and MEP values was observed in those who performed morning runs (p\< 0.001). The findings of our study indicate that morning running is more effective than running the dominant leg in a series of lower extremity strength tests, including the single leg (SL) and triple leg (THD) crossover hop for distance tests (CHDs) and the 6 m timed-hop test (6 m THT). The results were statistically significant (p=0.000). With respect to the nondominant leg, the SL and 6-meter THT tests were more effective in the morning running group than in the evening running group (p=0.000). The morning running group had better agility performance than the evening and control groups did. As a result, it was determined that morning jogging had a positive effect on respiratory muscle strength, respiratory function and lower extremity strength in children.