Muscle fatigue
Conditions
Interventions
Fatigue exercise group:Yerkes-Sorensen test (to create a fatigue model of the lumbar multifidus muscle) followed by 5 standing back extension movements
Fatigue non-exercise group:Yerkes-Sorensen test (to create a fatigue model of the lumbar multifidus muscle) followed by the same standing duration as the fatigue exercise group (without performing bac
Non-fatigue exercise group:No fatigue task, only perform 5 standing back extension movements
Sponsors
Hebei General Hospital
Eligibility
Sex/Gender
Female
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: 1. Age 18–45 years, female; 2. Body mass index (BMI) < 24 kg·m^-2; 3. No history of low back or neck pain or spinal surgery within the past year; 4. The ability to perform prone trunk lift required for the Biering–Sorensen test.
Exclusion criteria
Exclusion criteria: 1. Any trunk/neck/posture-related musculoskeletal disorder; 2. Pregnancy; 3. Lactation; 4. Or other medical conditions contraindicating participation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The shear modulus (kPa) of the L4–L5 lumbar multifidus muscle; | — |
Countries
China
Contacts
Public ContactShi Zhiping
Hebei General Hospital
Outcome results
None listed