Johan Hamberg

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Isometric training of the abdominal muscles is often recommended in programs of primary or secondary prevention for low-back pain. In this study 20 male workers with 2-18 years' history (average 5 1/2 years) of low-back pain without sciatica went through intense isometric abdominal muscle training for 5 weeks. Before and after training the subjects had(More)
Pain identical with angina pectoris can be released from the disks Th4-5, Th5-6 and Th6-7. Most common, cardiac-like pain is elicited from Th5-6. Physical stress such as lifting, rotation of the thorax and heavy work is especially symptom provoking. It is not unusual that movements in the bed during the night can provoke a pain attack. The pain can subside(More)
Isometric training of the abdominal muscles is recommended as a preventive measure against low back complaints in the hope that the increased strength of the abdominal muscles should result in an increased intraabdominal pressure when lifting. There is, however, neither experimental nor clinical proof of this hypothesis. Twenty healthy young men went(More)
OBJECTIVE To study the effects of a muscle stretching regimen for the rectus femoris muscle on subjective stretch sensation and range of motion (ROM). DESIGN A 2 x 2 crossover design comprising 2 treatments and 2 intervention periods. SETTING A military base in Sweden. PARTICIPANTS A volunteer sample of 29 male military conscripts divided into 2(More)
The axial rotation and simultaneous lateral flexion of the cervical spine is kinesiologically related to the movements of the upper thoracic spine. Five brachialgia patients were found to have a hypomobile first rib on the painful side in a cineradiographic study. The kinesiologic finding was the following: when the neutrally positioned cervical spine was(More)
Validity and intratester reliability of two test methods designed to identify stretchability of the rectus femoris muscle (RFM) was investigated, combined with x-ray analysis of pelvic tilt in the sagittal plane. The first method is commonly used in clinical practice. The second is a new technique supposed to tilt the pelvis posteriorly and thus further(More)