Respiratory muscle training: a bibliometric analysis of 60 years’ multidisciplinary journey

Ramli, Muhammad Imran; Hamzaid, Nur Azah; Engkasan, Julia Patrick; Usman, Juliana

doi:10.1186/s12938-023-01103-0

BioMedical Engineering OnLine

Table 10 List of all the devices used during the RMT intervention in RCT studies among people with SCI

From: Respiratory muscle training: a bibliometric analysis of 60 years’ multidisciplinary journey

Author, year	Intervention	Device	Main outcome measures	Device
Loveridge et al., (1989) [16]	Resistive loading training	Inspiratory resistor	Respiratory muscle strength	Validyne pressure transducer
			Ventilation timing	Mercury-in-rubber strain gauge^a Microcomputer and a polygraph^b
			Pulmonary function	Ventilatory muscle endurance testing rig A single lead ECG and end tidal CO₂^c
Derrickson et al., (1992) [17]	Resistive loading training	Inspiratory muscle trainer^d	Pulmonary function	Volume displacement spirometer^e Respirometer^f
Derrickson et al., (1992) [17]	Resistive loading training	Inspiratory muscle trainer^d	Respiratory muscle strength	Manometer^g
Liaw et al., (2000) [24]	Resistive loading training	Inspiratory muscle trainer^d	Respiratory muscle strength	Respiratory pressure meter^h
			Lung volumes	Body plethysmographyⁱ
			Pulmonary function	Body plethysmographyⁱ
Van Houtte et al., (2008) [25]	Normocapnic hyperpnoea training	Lab-developed normocapnic device	Respiratory muscle strength	Electronic pressure transducer
Van Houtte et al., (2008) [25]	Normocapnic hyperpnoea training	Lab-developed normocapnic device	Pulmonary function	Portable spirometer^j
Litchke et al., (2008) [26]	Resistive loading training	Concurrent flow respiratory device^k	Respiratory muscle strength	Manometer^l
			Pulmonary function	Spirometer^m
			Oxygen uptake	Heart rate monitorⁿ Air analyser^o
Roth et al., (2010) [27]	Resistive loading training	High pressure inspiratory force meter^q	Respiratory muscle strength	High pressure inspiratory force meter^q
Roth et al., (2010) [27]	Resistive loading training	High pressure inspiratory force meter^q	Pulmonary function	Pulmonary function testing^r
(Mueller et al., 2013) [22]	Resistive loading training	Inspiratory threshold trainer^s	Respiratory muscle strength	Respiratory pressure meter^t
	Resistive loading training	Inspiratory threshold trainer^s	Pulmonary function	Body plethysmography^u
	Normocapnic hyperpnoea training	Respiratory endurance test^p	Pulmonary function	Body plethysmography^u
	Normocapnic hyperpnoea training	Respiratory endurance test^p	Loudness of voice	Clamp-on ammeter^v
Tamplin et al., (2013) [28]	Singing training	Karaoke game^w	Respiratory muscle strength	Respiratory pressure meter^x
			Pulmonary function	Spirometer^y
			Lung volume	Spirometer with a helium analyzer^z
			Voice signal	Condenser microphone^ab
			Muscle signal	Surface electromyography
Postma et al., (2014) [29]	Pressure threshold loading training	Inspiratory threshold trainer^ac	Respiratory muscle strength	Respiratory pressure meter^ad
			Pulmonary function	Spirometer^ae
			Lung volumes	Spirometer^ae
West et al., (2014) [30]	Pressure threshold loading training	Pressure threshold device^af	Respiratory muscle strength	Respiratory pressure meter^h
			Pulmonary function and oxygen uptake	Stationary automated metabolic gas analysis system^ag
			Diaphragm thickness	B-mode two-dimensional ultra- sound^ah
Fischer et al., (2014) [31]	Normocapnic hyperpnoea training	Respiratory endurance test^p	Pulmonary function	Ergospirometric device^ai
Kim et al., (2017) [23]	Integrated training	Incentive spirometer^aj	Pulmonary function	Computerized spirometer^ak
Xi et al., (2019) [32]	Normocapnic hyperpnoea training	Respiratory endurance test^p	Pulmonary function	Body plethysmography^u
Soumyashree and Kaur, (2020) [33]	Pressure threshold loading training	Inspiratory muscle trainer^al	Respiratory muscle strength	Capsule sensing pressure gauge (CSPG-V) manometer^am
Boswell-Ruys et al., (2020) [34]	Pressure threshold loading training	Inspiratory threshold trainer^ac	Pulmonary function	Lung function machine^an
Litchke et al., (2010) [35]	Resistive loading training	Concurrent flow respiratory device^k	Pulmonary function	Spirometer^m
Litchke et al., (2010) [35]	Pressure threshold loading training	Concurrent pressure threshold resistance device^ao	Respiratory muscle strength	Manometer^l

N/M = not mentioned, the small letters in subscript at the last column indicates the suppliers listed in Appendix 1

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