Skeletal muscle contractility is preserved in COPD patients with normal fat‐free mass

Degens, Hans; Horneros, J. Manuel Sanchez; Heijdra, Yvonne F.; Dekhuijzen, P.N.R.; Hopman, Maria T. E.

doi:10.1111/j.1365-201x.2005.01447.x

Cited by 35 publications

(35 citation statements)

References 28 publications

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“…However, the groups were similar in the other study variables and the airflow limitation was shown not to influence the functional gains of patients, a fact that corroborates previous studies 49,50 .…”

Section: Discussionsupporting

confidence: 79%

Efeitos de um treinamento resistido com tubos elásticos sobre a força muscular, qualidade de vida e dispneia de pacientes com doença pulmonar obstrutiva crônica

et al. 2016

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RESUMOO objetivo deste estudo foi analisar os efeitos do treinamento resistido com tubos elásticos e aparelhos de musculação (convencional) sobre a força muscular, qualidade de vida e dispneia em pacientes com doença pulmonar obstrutiva crônica (DPOC). Pacientes alocados em grupos de treinamento com tubos elásticos (ETG, n=9) e convencional (CRG, n=10) foram avaliados por força isométrica e questionários de qualidade de vida (CRQ) e dispneia (MRC). A força isométrica aumentou em ~25% em ambos os grupos em todos os movimentos (p<0,05). MRC e o domínio dispneia de CRQ apresentaram melhoras de -28,70% e -6,05 % no ETG, e -33,33% e -16,23% no CRG, respectivamente. Força de flexão de ombro e cotovelo apresentaram correlação negativa com a variável MRC (p<0,05) para CRG. Ambas intervenções foram benéficas para aumento da força e redução do MRC, com aumento da força de membros superiores correlacionado à redução da sensação de dispneia nos pacientes com DPOC. Palavras-chave: Exercício. Doença pulmonar obstrutiva crônica. Qualidade de vida. ABSTRACTThe objective of this study was to analyze the effects of resistance training with elastic tubes and weight machines (conventional) on muscle strength, quality of life and dyspnea in patients with chronic obstructive pulmonary disease (COPD). Patients were allocated in training groups with elastic tubes (ETG, n = 9) and conventional (CRG, n = 10) and evaluated by isometric strength and quality of life questionnaire (CRQ) and dyspnea (MRC). Isometric strength increased by ~25% in both groups in all movements (p <0.05). MRC and the CRQ dyspnea domain showed improvement of -28.70% and -6.05% in the ETG, and -33.33% and -16.23% at CRG, respectively. Shoulder and elbow flexion showed a negative and significant correlation with MRC (p <0.05), for CRG. Both interventions were beneficial for increasing the strength and reducing the MRC score, and increased strength of upper limbs correlated to the reduction of the sensation of dyspnea in patients with COPD.

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Section: Discussionsupporting

confidence: 79%

Efeitos de um treinamento resistido com tubos elásticos sobre a força muscular, qualidade de vida e dispneia de pacientes com doença pulmonar obstrutiva crônica

et al. 2016

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“…In a small study, Degens and colleagues were unable to show differences between patients with severe COPD and control subjects matched for FFM (473). This study also reported a similar involvement of hand and quadriceps muscles.…”

Section: Assessment Of Limb Muscle Strengthmentioning

confidence: 53%

An Official American Thoracic Society/European Respiratory Society Statement: Update on Limb Muscle Dysfunction in Chronic Obstructive Pulmonary Disease

Maltais¹,

Decramer²,

Casaburi³

et al. 2014

Am J Respir Crit Care Med

885

1,033

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“…2,8 Because of the finding that the isometric handgrip force is conserved in patients with COPD, some studies infer that the upper limb function is preserved. [9][10][11] It appears that oxidative capacity is preserved or even increased in the deltoid muscles of patients with COPD, 9 as opposed to what is observed in lower limb muscles. One possible explanations for this difference is that patients continue to perform, to a certain extent, the ADLs that involve the upper limbs, but reduce their performance of the activities that involve the lower limbs, adopting a sedentary lifestyle in order to minimize dyspnea.…”

Section: Introductionmentioning

confidence: 76%

Upper and Lower Limb Muscles in Patients With COPD: Similarities in Muscle Efficiency But Differences in Fatigue Resistance

et al. 2013

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BACKGROUND: Peripheral muscle dysfunction is a common finding in patients with COPD; however, the structural adaptation and functional impairment of the upper and lower limb muscles do not seem to be homogenous. We compared muscle fatigue and recovery time between 2 representative muscles: the middle deltoid and the quadriceps femoris. METHODS: Twenty-one subjects with COPD (FEV 1 46.1 ؎ 10.3% of predicted) underwent maximal voluntary isometric contraction and an endurance test (60% of maximal voluntary isometric contraction, to the limit of tolerance). The maximal voluntary isometric contraction test was repeated after 10 min, 30 min, 60 min, and 24 hours for both the quadriceps femoris and middle deltoid. Surface electromyography was recorded throughout the endurance test. RESULTS: Maximal voluntary isometric contraction significantly decreased only for the middle deltoid between 10 and 60 min after the endurance test. A significant increase of the root mean square and a greater decline in median frequency throughout the endurance test occurred for the middle deltoid, compared with the quadriceps femoris. When dyspnea and fatigue scores were corrected by endurance time, higher values were observed for the middle deltoid (0.07 and 0.08, respectively) in relation to the quadriceps femoris (0.02 and 0.03, respectively). CONCLUSIONS: Subjects with COPD had a higher fatigability of a representative upper limb muscle (middle deltoid) than a lower limb muscle (quadriceps femoris).

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Skeletal muscle contractility is preserved in COPD patients with normal fat‐free mass

Cited by 35 publications

References 28 publications

Efeitos de um treinamento resistido com tubos elásticos sobre a força muscular, qualidade de vida e dispneia de pacientes com doença pulmonar obstrutiva crônica

Efeitos de um treinamento resistido com tubos elásticos sobre a força muscular, qualidade de vida e dispneia de pacientes com doença pulmonar obstrutiva crônica

An Official American Thoracic Society/European Respiratory Society Statement: Update on Limb Muscle Dysfunction in Chronic Obstructive Pulmonary Disease

Upper and Lower Limb Muscles in Patients With COPD: Similarities in Muscle Efficiency But Differences in Fatigue Resistance

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