Kinematic analysis and self-perceived exertion during the walking gait with a backpack in Brazilian scholars

Aim: The present study aimed to investigate the effects of different backpack loads on walking gait kinematics and ratings perceived exertion (RPE) in Brazilian scholars. Methods: sample was composed 25 male children adolescents, from 10 14 years. mean body mass height were 45.3 kg ± 10.6 1.51 m 0.08 m, respectively. For assessment, a tridimensional analysis system used. In conditions, 5%, 10%, 15%, 20% applied according weight everyone. Kinematic variables angular amplitudes head, shoulders, thorax, pelvis, knees sagittal plane collected. OMNI scale used assess RPE. Results: promoted postural adjustments alterations gait, which RPE presented correlation with those alterations. step left cycle altered baseline 5% (p = 0.006). stride length 0.030) 10% < 0.001) load conditions. single support time all conditions 0.003; p 0.012; 0.005; cadence comparison between 0.003). Thorax amplitude 0.023), 15% 0.033) 0.005) cycle. Conclusion: We concluded that posture, RPE, kinematic increase load.