The goal of this clinical trial is to assess the effects of eccentric arm-crank (KREHA) training compared to standard clinical routine strength (STAN) training in individuals undergoing primary spinal cord injury (SCI) rehabilitation.
The main questions this trail aims to answer are:
* what are the effects of the training on upper body strength, aerobic performance, muscle volume, functional independence, and health-related quality of life? * is the KREHA training feasible to implement into the rehabilitation routine?
Participants will:
* perform either 20 KREHA sessions or 20 STAN sessions within 12 weeks * perform a test battery to collect data on training effects before (pretest) and after (posttest) the study intervention
18 years or older.
informed consent as confirmed per signature.
traumatic or disease-related SCI.
participating in the routine strength training program during primary SCI rehabilitation at the study center (generally this is initiated around one month after SCI onset).
inflammatory or neurodegenerative diseases (including multiple sclerosis or Guillain-Barré syndrome).
comorbidities or other health issues that may interfere with study participation, inability or contraindications to undergo the investigated intervention.
MRI contraindications (magnetic metal parts or electronic implants such as pacemakers in the body).
pregnancy (anamnestic).