eprintid: 20465 rev_number: 16 eprint_status: archive userid: 1589 dir: disk0/00/02/04/65 datestamp: 2016-03-17 09:40:45 lastmod: 2024-03-10 20:27:38 status_changed: 2016-03-17 09:40:45 type: article metadata_visibility: show creators_name: Rief, Harald creators_name: Omlor, Georg creators_name: Akbar, Michael creators_name: Bruckner, Thomas creators_name: Rieken, Stefan creators_name: Förster, Robert creators_name: Schlampp, Ingmar creators_name: Welzel, Thomas creators_name: Bostel, Tilman creators_name: Roth, Heinz Jürgen creators_name: Debus, Jürgen title: Biochemical markers of bone turnover in patients with spinal metastases after resistance training under radiotherapy – a randomized trial subjects: ddc-610 divisions: i-911460 divisions: i-911400 divisions: i-911800 abstract: Background: To compare the effects of resistance training versus passive physical therapy on bone turnover markers (BTM) in the metastatic bone during radiation therapy (RT) in patients with spinal bone metastases. Secondly, to evaluate an association of BTM to local response, skeletal-related events (SRE), and number of metastases. Methods: In this randomized trial, 60 patients were allocated from September 2011 to March 2013 into one of the two arms: resistance training (Arm A) or passive physical therapy (Arm B) with thirty patients in each arm during RT. Biochemical markers such as pyridinoline (PYD), desoxy-pyridinoline (DPD), bone alkaline phosphatase (BAP), total amino-terminal propeptide of type I collagen (PINP), beta-isomer of carboxy-terminal telopeptide of type I collagen (CTX-I), and cross-linked N-telopeptide of type I collagen (NTX) were analyzed at baseline, and three months after RT. Results: Mean change values of PYD and CTX-I were significantly lower at 3 months after RT (p = 0.035 and p = 0.043) in Arm A. Importantly, all markers decreased in both arms, except of PYD and CTX-I in arm B, although significance was not reached for some biomarkers. In arm A, the local response was significantly higher (p = 0.003) and PINP could be identified as a predictor for survivors (OR 0.968, 95%CI 0.938–0.999, p = 0.043). BAP (OR 0.974, 95%CI 0.950–0.998, p = 0.034) and PINP (OR 1.025, 95%CI 1.001–1.049, p = 0.044) were related with an avoidance of SRE. Conclusions: In this group of patients with spinal bone metastases, we were able to show that patients with guided resistance training of the paravertebral muscles can influence BTM. PYD and CTX-I decreased significantly in arm A. PINP can be considered as a complementary tool for prediction of local response, and PINP as well as BAP for avoidance of SRE. Trial registration: Clinical trial identifier NCT 01409720. August 2, 2011. date: 2016 publisher: BioMed Central; Springer id_scheme: DOI ppn_swb: 1657236641 own_urn: urn:nbn:de:bsz:16-heidok-204658 language: eng bibsort: RIEFHARALDBIOCHEMICA2016 full_text_status: public publication: BMC Cancer volume: 16 number: 231 place_of_pub: London; Berlin; Heidelberg pagerange: 1-7 issn: 1471-2407 citation: Rief, Harald ; Omlor, Georg ; Akbar, Michael ; Bruckner, Thomas ; Rieken, Stefan ; Förster, Robert ; Schlampp, Ingmar ; Welzel, Thomas ; Bostel, Tilman ; Roth, Heinz Jürgen ; Debus, Jürgen (2016) Biochemical markers of bone turnover in patients with spinal metastases after resistance training under radiotherapy – a randomized trial. BMC Cancer, 16 (231). pp. 1-7. ISSN 1471-2407 document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/20465/1/12885_2016_Article_2278.pdf