Content - Volume 27, Issue 2

All articles

Physical strength and endurance in relation to perceived psychosocial work environment, sleep disturbance and coping strategies in men. Stockholm MUSIC I (MUsculo-Skeletal Intervention Centre) Study Group, Stockholm
Theorell T, Schüldt C, Ekholm J, Michélsen H
The study explored relationships between subjective descriptions of psychosocial work situation, sleep disturbance and coping patterns at work on the one hand and performance during a test of physical strength and perceived effort during a muscular endurance test on the other. The physical strength of the shoulders flexors was measured. The subjective degree of effort was rated 60 and 90 seconds a ...
Pages: 67-71
Abstract  PDF
Micro- and macrocirculatory, and biohumoral changes after a month of physical exercise in patients with intermittent claudication
Pancera P, Prior M, Zannoni M, Lucchese L, De Marchi S, Arosio E
We studied 15 subjects with intermittent claudication, classed as stage II according to Leriche-Fontaine. The patients were subjected to laser Doppler flowmetry, strain gauge plethysmography, Doppler velocimetry, and blood sampling, in basal conditions and after one month of physical training. Symptom-free walking distance at the end of the training period showed a significant increase, while ther ...
Pages: 73-76
Abstract  PDF
Energy cost during ambulation in transfemoral amputees: a knee joint with a mechanical swing phase control vs a knee joint with a pneumatic swing phase control.
Boonstra AM, Schrama J, Fidler V, Eisma WH
The aim of the study was (i) to evaluate the preference of transfemoral amputees for a 4-bar linked knee joint with either a mechanical swing phase control or a pneumatic swing phase control, and (ii) to compare the energy expenditure in transfemoral amputees using a prosthesis with a mechanical swing phase control with that of the same amputees using a prosthesis with a pneumatic swing phase cont ...
Pages: 77-81
Abstract  PDF
Comparisons of mechanical and electromyographical muscular utilization ratios.
Hébert LJ, Gravel D, Arsenault B
The physical loading of a muscle during functional activities can be estimated by the muscular utilization ratio. This ratio is defined as the percentage of muscular involvement relative to the maximal capacity. Either mechanical or electromyographical approaches can be used to obtain the muscle utilization ratio. However, the non-linear relationship between electromyographical activity and muscle ...
Pages: 83-88
Abstract  PDF
A clinical method for measuring segmental flexion mobility in the cervico-thoracic spine and a model for classification
Norlander S, Aste-Norlander U, Nordgren B, Sahlstedt B
Pain and limitation of spinal mobility are symptoms frequently reported by patients. Many methods have been used to assess the total range of mobility in the different parts of the spine, but there is no method for clinical examination of segmental mobility. The aim of this study was to describe such a technique concerning of segmental flexion mobility in the cervico-thoracic spine, C7-T5, and to ...
Pages: 89-98
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Acoustic cues and postural control
Petersen H, Magnusson M, Johansson R, Akesson M, Fransson PA
The effect of auditory input on postural control was evaluated in separate experiments performed in three groups of healthy volunteers. Auditory input took the form either of feedback signals generated by a force platform in response to the subject's postural control movements, or of field orientation (frame of reference) input provided by repeated clicks emitted by loudspeakers in a normally reve ...
Pages: 99-104
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Pulsed ultrasound treatment of the painful shoulder a randomized, double-blind, placebo-controlled study
Nykänen M
To study the effect of pulsed ultrasound in shoulder pains, 35 patients were treated with pulsed ultrasound and 37 patients with placebo ultrasound in a double-blind design. The therapy was given during inpatient rehabilitation, 10-12 treatments over 3-4 weeks. Treatment time was 10 minutes, frequency 1.0mHz, on-off ratio 1:4 and intensity 1.0w/cm2. Follow-ups were done after 4-12 months. No diffe ...
Pages: 105-108
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Isometric muscle strength and muscular endurance in normal persons aged between 17 and 70 years
Bäckman E, Johansson V, Häger B, Sjöblom P, Henriksson KG.
Isometric muscle strength was measured in 63 women and 65 men, randomly selected, aged 17-70 years, using Penny & Giles' hand-held dynamometer. Eight muscle groups as well as the hand grip strength were tested bilaterally. The muscular endurance was measured as time to exhaustion in the abductors of the shoulder and the flexors of the hip. Reference values for muscle strength and muscular enduranc ...
Pages: 109-117
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Instrumental activities of daily living related to impairments and functional limitations in 70-year-olds and changes between 70 and 76 years of age
Sonn U, Frändin K, Grimby G.
The aim of this study was to analyse in particular dependence in instrumental daily life activities (I-ADLs) and its association with physical impairments and functional limitations in the elderly. The study was based on cross-sectional data on 70-year-olds (n = 602) and longitudinal data on subjects followed up to the age of 76 (n = 371). Persons dependent in ADL had lower values in maximum walki ...
Pages: 119-128
Abstract  PDF