PMID- 24399630 OWN - NLM STAT- MEDLINE DCOM- 20140626 LR - 20220331 IS - 1468-3296 (Electronic) IS - 0040-6376 (Linking) VI - 69 IP - 6 DP - 2014 Jun TI - Efficacy of lower-limb muscle training modalities in severely dyspnoeic individuals with COPD and quadriceps muscle weakness: results from the DICES trial. PG - 525-31 LID - 10.1136/thoraxjnl-2013-204388 [doi] AB - RATIONALE: Strength training and neuromuscular electrical stimulation (NMES) improve lower-limb muscle function in dyspnoeic individuals with chronic obstructive pulmonary disease (COPD). However, high-frequency NMES (HF-NMES) and strength training have never been compared head-to-head; and effects of low-frequency NMES (LF-NMES) have never been studied in COPD. Therefore, the optimal training modality to improve lower-limb muscle function, exercise performance and other patient-related outcomes in individuals with severe COPD remains unknown. OBJECTIVES: To study prospectively the efficacy of HF-NMES (75 Hz), LF-NMES (15 Hz) or strength training in severely dyspnoeic individuals with COPD with quadriceps muscle weakness at baseline. METHODS: 120 individuals with COPD (FEV1: 33+/-1% predicted, men: 52%, age: 64.8+/-0.8 years) were randomised to HF-NMES, LF-NMES or strength training as part of a comprehensive inpatient pulmonary rehabilitation programme. No treadmill walking or stationary cycling was provided. MEASUREMENTS AND MAIN RESULTS: Groups were comparable at baseline. Quadriceps muscle strength increased after HF-NMES (+10.8 Newton-metre (Nm)) or strength training (+6.1 Nm; both p<0.01), but not after LF-NMES (+1.4 Nm; p=0.43). Quadriceps muscle endurance, exercise performance, lower-limb fat-free mass, exercise-induced symptoms of dyspnoea and fatigue improved significantly compared with baseline after HF-NMES, LF-NMES or strength training. The increase in quadriceps muscle strength and muscle endurance was greater after HF-NMES than after LF-NMES. CONCLUSIONS: HF-NMES is equally effective as strength training in severely dyspnoeic individuals with COPD and muscle weakness in strengthening the quadriceps muscles and thus may be a good alternative in this particular group of patients. HF-NMES, LF-NMES and strength training were effective in improving exercise performance in severely dyspnoeic individuals with COPD and quadriceps weakness. TRIAL REGISTRATION: NTR2322. CI - Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions. FAU - Sillen, Maurice J H AU - Sillen MJ AD - Department of Research & Education, CIRO+, Centre of Expertise for Chronic Organ Failure, Horn, The Netherlands. FAU - Franssen, Frits M E AU - Franssen FM AD - Department of Research & Education, CIRO+, Centre of Expertise for Chronic Organ Failure, Horn, The Netherlands. FAU - Delbressine, Jeannet M L AU - Delbressine JM AD - Department of Research & Education, CIRO+, Centre of Expertise for Chronic Organ Failure, Horn, The Netherlands. FAU - Vaes, Anouk W AU - Vaes AW AD - Department of Research & Education, CIRO+, Centre of Expertise for Chronic Organ Failure, Horn, The Netherlands. FAU - Wouters, Emiel F M AU - Wouters EF AD - Department of Research & Education, CIRO+, Centre of Expertise for Chronic Organ Failure, Horn, The Netherlands Department of Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands. FAU - Spruit, Martijn A AU - Spruit MA AD - Department of Research & Education, CIRO+, Centre of Expertise for Chronic Organ Failure, Horn, The Netherlands. LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20140107 PL - England TA - Thorax JT - Thorax JID - 0417353 SB - IM CIN - Thorax. 2014 Oct;69(10):953. PMID: 24813193 CIN - Thorax. 2014 Oct;69(10):953-4. PMID: 24928811 MH - Activities of Daily Living MH - Aged MH - Body Composition MH - Dyspnea/physiopathology/*rehabilitation MH - Electric Stimulation Therapy/*methods MH - Exercise/physiology MH - Female MH - Humans MH - Male MH - Middle Aged MH - *Muscle Strength/physiology MH - Muscle Weakness/physiopathology/*rehabilitation MH - Prospective Studies MH - Pulmonary Disease, Chronic Obstructive/physiopathology/*rehabilitation MH - *Quadriceps Muscle MH - Resistance Training/*methods MH - Single-Blind Method OTO - NOTNLM OT - COPD Pathology OT - Exercise OT - Pulmonary Rehabilitation EDAT- 2014/01/09 06:00 MHDA- 2014/06/27 06:00 CRDT- 2014/01/09 06:00 PHST- 2014/01/09 06:00 [entrez] PHST- 2014/01/09 06:00 [pubmed] PHST- 2014/06/27 06:00 [medline] AID - thoraxjnl-2013-204388 [pii] AID - 10.1136/thoraxjnl-2013-204388 [doi] PST - ppublish SO - Thorax. 2014 Jun;69(6):525-31. doi: 10.1136/thoraxjnl-2013-204388. Epub 2014 Jan 7.