Effects of breathing training on respiratory muscle efficiency, pain, health-related quality of life and intake of drugs in sedentary women with fibromyalgia

A randomised controlled trial investigating the effects of 12 weeks of breathing training techniques on respiratory muscle efficiency, pain, health-related quality of life and intake of drugs in sedentary women with fibromyalgia

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN37081460

Enrollment

Registered

2014-10-27

Start date

2012-01-23

Completion date

Unknown

Last updated

2018-05-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Syndrome of fibromyalgia Musculoskeletal Diseases Fibromyalgia

Interventions

The breathing therapy consisted of 30 minutes/session for 7-times/week (1-time supervised by an expert in breathing training techniques, and 6-times unsupervised at home with regard to audiovisual tra

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1. Diagnosis of fibromyalgia by a rheumatologist 2. Non-smokers and not consumers of alcohol 3. Age between 25 and 70 years

Exclusion criteria

Exclusion criteria: 1. History of severe trauma 2. Peripheral nerve entrapment 3. Inflammatory rheumatic diseases 4. Severe psychiatric illness 5. Respiratory diseases 6. Other diseases that prevent breathing training 7. Pregnancy 8. Attend to another psychological or physical therapy

Design outcomes

Primary

Measure	Time frame
The primary endpoint with respect to effects of breathing training techniques on respiratory muscle efficiency. Therefore, the functional respiratory examination was measured with global body plestimograph. The standard parameters of ventilatory pattern were recorded: minute ventilation (VE), respiratory frequency (f), tidal volume (VT) and the ratio of inspiratory and the total times (Ti/Ttot). In the study of muscle efficiency, two parameters were monitored: the maximal inspiratory pressure (MIP) and maximum occlusion pressure (P0.1). The maximal expiratory pressure (MEP) was measured as a component of the study of evaluation of respiratory muscles. Measurements were taken at baseline and post-intervention at 12 weeks.	—

Measure

Time frame

The primary endpoint with respect to effects of breathing training techniques on respiratory muscle efficiency. Therefore, the functional respiratory examination was measured with global body plestimograph. The standard parameters of ventilatory pattern were recorded: minute ventilation (VE), respiratory frequency (f), tidal volume (VT) and the ratio of inspiratory and the total times (Ti/Ttot). In the study of muscle efficiency, two parameters were monitored: the maximal inspiratory pressure (MIP) and maximum occlusion pressure (P0.1). The maximal expiratory pressure (MEP) was measured as a component of the study of evaluation of respiratory muscles. Measurements were taken at baseline and post-intervention at 12 weeks.

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Secondary

Measure	Time frame
1. Pain was evaluated by the rheumatologist as follows: 1.1. Pain in tender points with digital dolorimeter 1.2. Widespread pain index (WPI) and total symptom severity (SS) by applying the 2010 ACR preliminary classification criteria diagnoses of fibromyalgia 1.3. Overall pain by using a visual analog scale (VAS) 2. Health-related quality of life (HRQoL) was evaluated using the Portuguese language version of the Short Form 36 Health Survey (SF-36) 3. The Portuguese version of the Fibromyalgia Impact Questionnaire (FIQ) was used to evaluate the impact of FM on patients? physical and mental health 4. Type and number of drugs taken in relation to fibromyalgia were recorded	—

Measure

Time frame

1. Pain was evaluated by the rheumatologist as follows: 1.1. Pain in tender points with digital dolorimeter 1.2. Widespread pain index (WPI) and total symptom severity (SS) by applying the 2010 ACR preliminary classification criteria diagnoses of fibromyalgia 1.3. Overall pain by using a visual analog scale (VAS) 2. Health-related quality of life (HRQoL) was evaluated using the Portuguese language version of the Short Form 36 Health Survey (SF-36) 3. The Portuguese version of the Fibromyalgia Impact Questionnaire (FIQ) was used to evaluate the impact of FM on patients? physical and mental health 4. Type and number of drugs taken in relation to fibromyalgia were recorded

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Countries

Portugal

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 24, 2026