Publications by authors named "Sigrid Sudhaus"

Recent clinical studies in patients with lower back pain indicate that maladaptive fear-avoidance- and endurance-related pain responses (FAR and ER) have an influence on pain-induced physiological stress levels. The aim of the present study was to follow-up these results under well-controlled laboratory conditions. For this purpose, 30 healthy adults were asked to indicate their usual responses to pain, and were then confronted with an experimental pain stimulus (cold pressor test).

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Purpose: This study examines the relationship between low back pain, disability and fatigue and overt physical activity with respect to fear-avoidance and endurance-related subgroups.

Method: 49 patients completed questionnaires (Pain, Disability, Fatigue, Depression, Pain-responses pattern) 6 months after lumbar disc surgery and underwent an 8-hour accelerometer assessment measuring overall physical activity (PAL), constant strain postures (CSP), standing time (ST) and lying time (LT). Four subgroups, representing patterns of distress-endurance (DER), eustress-endurance (EER), fear-avoidance (FAR) and adaptive responses (AR) due to the avoidance-endurance model of pain-regulation were investigated.

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Recent research indicates that stress-induced, prolonged deviations in basal adrenocortical activity might contribute to ongoing/recurrent pain following lumbar disc surgery. Further, fear-avoidance and endurance responses to pain (FAR and ER) are regarded as important risk factors for pain after surgery. In patients with non-specific low back pain, FAR appear to possibly increase pain-related arousal, whereas ER may have an arousal-lowering effect, indicated by adrenocortical activity.

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This study was designed to explore whether the basal adrenocortical activity is related with pain-related coping, nonverbal pain behavior, depressive mood, and fatigue in patients with acute and chronic nonspecific low back pain. 19 patients with acute low back pain (ALBP) and 24 with chronic low back pain (CLBP) participated in the study. The adrenocortical activity was assessed through the cortisol awakening response.

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