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Updated: May 8, 2026

Muscle Function Obtained with Motion Mode Ultrasound and Surface Electromyography during Core Endurance Exercise
Published on: August 25, 2022
Older adults present better back endurance than young adults during a dynamic trunk extension exercise
Rodolfo B Parreira1, Márcio R de Oliveira1, César F Amorim2
1Centre for Health Science Research, Laboratory of Functional Evaluation and Human Motor Performance, Universidade Norte do Paraná, Londrina-PR, Brazil Masters Program in Rehabilitation Sciences UEL/UNOPAR, Londrina-PR, Brazil.
Background And Objective:
Poor back endurance is a predictor of low back pain. Few studies have investigated back muscle fatigue in older people. The purpose of this study was to compare the back muscle fatigue by endurance time and perceived effort between young and older adults during dynamic exercise.
Method:
Sixteen older and 16 young adults, all healthy, participated in this study. The subjects performed a fatiguing trunk extension-flexion exercise on a Roman chair until exhaustion. Endurance time and perceived muscle fatigue (Borg CR-10 scale) were used as fatigue criteria.
Results:
The older adults were significantly (T
Conclusion:
The older adults presented better back endurance than young adults during a dynamic trunk extension exercise. These results have implications for back endurance in the primary prevention of low back pain in both young and older adults.
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