An interventional study of eccentric arm-cranking training in Strength Training, sponsored by Swiss Paraplegic Research, Nottwil. Completed at 1 site in Switzerland. Open to participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-08-24.
Sponsored by Swiss Paraplegic Research, Nottwil · Not applicable, Interventional, and Basic science
The new training device, the eccentric arm-crank, will be examined for its training effect by this project. That the training device can be used in athletes and patients with paraplegia in the future, the so-called "testing of the applicability of this concept" will be carried out during this study. Fourteen volunteer, healthy and trained people are first tested for their upper body performance, followed by a training phase over 20 trainings and at the and the performance data is collected again. The training intensity and duration is continuously increased during the training phase.
At the beginning, the study design includes an familiarisation appointment with performance tests and training on the eccentric arm-crank device (KREHA). At least one week later, the first test sequence including a maximum strength test (bench press), magnetic resonance imaging (MRI) to determine the muscle cross-section area of the upper arm and a test to determine the anaerobic performance (Wingate test) is conducted. The second test sequence takes place one to three days later. This includes a handgrip strength test, an aerobic endurance test (ramp test on the arm crank ergometer with ergospirometry) and a further familiarisation training on the KREHA. The training phase starts within two weeks after the pre-tests have been completed. There are two to a maximum of three trainings per week. These take 30 to 60 minutes and take place on the KREHA device under the supervision of the study staff. The training phase lasts a maximum of twelve weeks (20 training sessions). The first test sequence is repeated five to eight days after the last workout. The second test sequence takes place at the same time interval as in the pre-tests.
Swiss Paraplegic Research, Nottwil is the lead sponsor of 69 studies on the registry; 9 are open to participants now.
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Exclusion Criteria:
This Group will train on the KREHA for 20 Trainings
Other: eccentric arm-cranking training
Over the twenty training sessions, able-bodied participants will exercise on the KREHA device. An arm-crank has to be decelerated, which will be rotated by a prematurely defined revolution rate and training duration. During this intervention a certain power has to be applied. During the whole time of training a continous progression in power and training duration is applied
Upper body Performance
Peak Power - maximal reached power, generated during the 30sec Wingate arm-crank test
Time frame: through study completion, an average of 20 weeks
Endurance Oxygen consumption
VO2peak \[ml/min/kg\] - Basic Endurance test (Ergospirometry, arm-crank)
Time frame: through study completion, an average of 20 weeks
Endurance Power
Wmax \[W\] - Basic Endurance test (Ergospirometry, arm-crank)
Time frame: through study completion, an average of 20 weeks
Upper body Mean Power
Mean Power \[W\] - Wingate Test (arm-crank)
Time frame: through study completion, an average of 20 weeks
Upper body Power - Time to Peak
Time to Peak \[s\] - Wingate Test (arm-crank)
Time frame: through study completion, an average of 20 weeks
Upper body Fatigue resistance
Fatigue Index \[%\]- Wingate Test (arm-crank)
Time frame: through study completion, an average of 20 weeks
Upper body Fatigue resistance
Fatigue Slope \[W/s\] - Wingate Test (arm-crank)
Time frame: through study completion, an average of 20 weeks
1RM bench press
One Repetition Maximum (1RM) \[kg\]- bench press
Time frame: through study completion, an average of 20 weeks
Grip Strength
Maximal Force that can be generated by pressing hand towards a fist \[N\]
Time frame: through study completion, an average of 20 weeks
Cross sectional muscle area
Cross sectional area of the upper arm is measured with MRI
Time frame: through study completion, an average of 20 weeks
Upper Arm Circumference
Circumference of the upper arm is measured with measuring tape
Time frame: through study completion, an average of 20 weeks
Plan to share: No
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This study is completed, as verified in Nov 2021. You cannot join it, but the record below documents what was studied.
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Swiss Paraplegic Research, Nottwil