Azar Habibinejad, Hamid Rajabi, Farhad Ghadiri, Mehrdad Anbarian,
Volume 100, Issue 100 (10-2020)
Abstract
One of the most important issues for the elderly is the issue of physical health and cognitive problems. The aim of this study was to compare the activity of dual resistance-cognitive task with different intensities on fatigue, balance and cognitive function of elderly women. The present study is an applied and quasi-experimental method with the presence of 20 elderly women aged 60 to 70 years, which was done as a one-session test and getting answers. Subjects performed exhausting tests of foot press with machine and shoulder press with dumbbell with combined cognitive load with two different intensities (70% 1RM with low cognitive load and 30% 1RM with high cognitive load) in two days with an interval of 48 hours and the results were recorded. Balance test, upper and lower torso muscle activity and Stroop test were measured. The results of fatigue time, cognitive test and balance were significantly different between the two intensities (p <0.05). But in relation to the middle spectrum of muscle frequency, no significant difference was observed between the two intensities (p> 0.05). Using low-intensity, high-cognitive exercise is more effective in treating upper body fatigue, which puts more pressure, which may need further investigation to evaluate the long-term success of these programs.
Mozhgan Fallah, Mahta Eskandarnejad, Behzad Behzadnia,
Volume 100, Issue 100 (10-2020)
Abstract
abstract
Aim: The aim of this study was to investigate the effect of mental and physical fatigue on attention and free-throw performance in skilled and novice basketball players. Methods: This semi-experimental study was conducted with a pre-test–post-test design on 30 female basketball players (15 skilled and 15 novice) from Tabriz city. Mental fatigue was induced using a complex Stroop task, and physical fatigue was induced via a basketball-specific movement protocol. Selective and distributed attention and free-throw accuracy were assessed as performance indicators. Results: Results showed that mental fatigue significantly decreased attention accuracy and free-throw performance in novices, whereas it had no significant effect on free-throw performance in skilled players. Physical fatigue significantly reduced attention accuracy and free-throw performance in both groups. Conclutions: Findings highlight that skilled players are more resistant to the negative effects of mental fatigue, but physical fatigue still impairs their performance. These results emphasize the importance of targeted training programs to maintain performance under fatigue conditions.
