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C. Haenebalcke

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    O27 - Clinical Trials and Practice (ID 142)

    • Event: WCLC 2013
    • Type: Oral Abstract Session
    • Track: Other Topics
    • Presentations: 1
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      O27.06 - Resistance training in patients with radically treated respiratory cancer: mature results of a multi-centre randomised phase 3 trial (REINFORCE) (ID 678)

      16:15 - 17:45  |  Author(s): C. Haenebalcke

      • Abstract
      • Presentation
      • Slides

      There is a lack of data on the effect of conventional resistance training (CRT) on exercise capacity, muscle strenght and quality of life (QoL) in patients with lung cancer. Whole body vibration (WBV) is proposed as an alternative to CRT. We investigated the effect of a radical treatment and of two post-treatment resistance training programmes on the 6-minutes walking distance (6MWD).

      Selected patients with clinical stage I-IIIB (non-) small cell lung cancer or I-II mesothelioma were evaluated before (M1) and at completion (M2) of their radical treatment, and thereafter randomised to either control (CON), CRT or WBV. 6MWD was measured at M1, M2 and at least 12 weeks (w) after randomisation (M3) considering a minimal clinically important difference (MCID) of 54 m. Assuming that this MCID would occur in 10% of the CON-group and aiming for an increase to at least 50% in the combined intervention groups (CRT and WBV), a sample size of 25 participants in each arm was required for a power of 90%. Secondary endpoints were estimated by appropriate MCID's for maximal exercise capacity (Wmax), muscle strenght (Quadriceps Force (QF)) and QoL (physical functioning (PF), fatigue (F), pain (P) and dyspnea D)). Multiple imputation was used to correct for patients not finishing the intervention.

      Of the 86 patients completing radical treatment, 70 were randomised: 24 to CON, 24 to CRT and 22 to WBV. Characteristics at M1 were well balanced. Radical treatment significantly decreased 6MWD, Wmax, QF, PF and increased P, F and D at M2. At M3, 20 of 37 (54%) patients in the combined CRT-WBV-group reached the MCID for 6MWD vs. 5 of 21 CON (24%) patients (p=0·031). 6MWD increased with 95 m (58–132) in CRT (p<0·0001), 37 m (-1–76) in WBV (p=0·06) and 1 m (-33–36) in CON (CRT vs. CON p=0·0006 and WBV vs. CON p=0·16). CRT and WBV patients recovered and exceeded their M16MWD, albeit not significantly. A significant mean increase in Wmax occurred in both CRT and WBV but not in CON, while QF increased only significantly in CRT. The mean score for PF at M3 improved in CON and WBV but only significantly with WBV. The mean score for P and F at M3 did not change significantly, however the MCID for F was reached in 37% of CRT, 44% of WBV and 30% of CON-patients. The mean score for D at M3 decreased significantly after WBV only. Multivariate analysis showed that there was no significant interaction between rehabilitation and surgery with regard to the MCID in 6MWD (p=0.96).

      Radical treatment significantly impairs exercise capacity, muscle strength and QoL. CRT significantly improves and restores functional exercise capacity, whilst WBV does not fully substitute for CRT. Resistance training by CRT should be offered to radically treated lung cancer and mesothelioma patients. Supported by research grant 070708 of the Belgian Government Agency of Innovation by Science and Technology for applied Biomedical Research (NCT: 00752700)

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