To examine effects of fatigue of diaphragm on postural control and balance with individuals who have non-spesific low back pain

Aim: It is aimed to examine effects of fatigue of diaphragm or balance and control of posture with individuals who have non-spesific low back pain (NSLBP). Material and Method: 30 university students who have non-spesific low back pain (NSLBP) and 30 university students who have not a backhace, totally 60 university students between ages of 18-25 are evaluated. Measurements for Maximal Inspiratory Pressure (MIP) and Maximal Expiratory Pressure (MEP) of those individuals are performed subequently to measure postural control and balance of those individuals; functional Reach Test, functional Reach Test with a Load, The Side bridge test, Biering Sorensen Test, Berg Balance Scale, Y Balance Test and Stabilizer test are performed on thoe individuals. In the sequel, %60 of MIP values of those individuals is calculated and this result is arrenged on breathing muscle exercise device , a device for respiration and muscle exercise, and inviduals are asked for breathing against the resistance at device. The time for breathing with device provided us to determine the fatigue of diaphragm endurance and that time was recorded in seconds. Additionaly fatigue of diaphragm is created by this technique method. MIP and MEP values of participants are remeasured to observe the changes in these values immedrately after fatigue of diaphragm. Functioral reach Test, Functioral Reach Test with a Load , The Side Bridge. Test, Biering Sorensen Test, Berg Balance Scale, Y balance Test and Stabilizer Test are reapplied after fatigue of diaphragm and looked for changes between them. McGill- Melzack Pain Questionnaire was conductred to evaluate the pain of indivituals with NSLBP. International Physical activity Questionnaire Short Form (IPAQ) was applied to determine physical activity fevels and Corbin Posture Analysis was performed to evaulate postures of participants. Moreover, flexibility, muscle shortness and muscle strength of upper limb, trunk and power limb of participants are evaluated. Results: When the results of smoking usage examind for both indirruals who have NSLBP and who do not have, smoking usage of individuals with NSLBP was found higher. When the results of posture analysis are examined, posture of individuals who have NSLBP was found better than individuals who have not a backhache ( p<0.05). Before fatigue of diaphragm, there was not a Significent difference between individuals with NSLBP and individuals who have not backache in their results for MIP and MEP, Stabilizer, Repiration muscle endurance, functional Reach test, Functional Reach with Load Test, Biering Sorensen, Berg Balance Scale (p<0.05). After fatigue of diaphragm, statistically a significant decline was found in results of Y Balance Test, the side bridge, functional reach, functional reach with load, and Biering Sorensen between individuals with NSLBP and without low bak pain (p< 0.05). However, the decline in the values of Y balance test abd the side bridge test of individuals with NLSBP was found statisticly more significant than the declire in values of individuals with no backache (p<0.05). In addition, the decline in values of stabilizer after fatigue of diaphragm was found more significant for individuals with NSLBP. Conclusions: The fatigue of diaphragm has negative effects on balance and control of posture; however, this effect was found more significant for individuals who have NSLBP than who have not a backache. It is important to tone up and increase endurance of diaphragm of inviduals who have backache and poor control of balance and posture to improve their values of balance and postural control.