C A Richardson's research while affiliated with Charité Universitätsmedizin Berlin and other places

Publications (34)

Article
Op dit moment wordt in de geneeskunde uitgebreid gebruikgemaakt van real-time echografie. Deze methode is een veilige, kosteneffectieve en zeer toegankelijke onderzoekmethode ten aanzien van verschillende organen en weefsels. Een gebied waarop echografie heeft bewezen nuttig te zijn is onderzoek naar pathologie van het bewegingsapparaat. Weefsels d...
Article
Full-text available
At least 6% of primary school aged children present with DCD, where co-ordination is substantially below the normal range for the child’s age and intelligence. Motor skill difficulties negatively affect academic achievement, recreation and activities of daily living. Poor upper-limb co-ordination is a common difficulty for children with DCD. A poss...
Article
Full-text available
To determine if asymmetry of trunk muscles and deficits of motor control exist among elite cricketers with and without low back pain (LBP). Single-blinded observational quasi-experimental design study Assessments were conducted in a hospital setting. Among a total eligible sample of 26 male elite cricketers (mean age 21.2 (SD 2.0) years), selected...
Article
Exercise may affect osteopenic women at risk of falls and fractures. A workstation approach to exercise was evaluated in a randomised study of 98 women. The intervention group improved in measures of balance, strength and bone density. This study supports a preventative exercise approach that aims to reduce risk factors for fractures and falls, in...
Article
The timing of muscle activity is commonly measured in studies of motor control. In repetitive-movement tasks, muscle activity may be continuous, and no defined onset or offset of activity may be measured. This does not imply that no timing of muscle activity occurs. Where activity is continuous, this timing will typically be exhibited by modulation...
Article
Low-back pain (LBP) is common not only on Earth, but also in space.This is remarkable because, on Earth, LBP is ascribed mostly to heavy spinal loading.The Topical Team was established by ESA to answer the question "What is the aetiology of LBP during flight and what countermeasures may be developed?" The starting point for the Team's activities is...
Article
The antigravity muscles of the lumbo-pelvic region, especially transversus abdominis (TrA), are important for the protection and support of the weightbearing joints. Measures of TrA function (the response to the postural cue of drawing in the abdominal wall) have been developed and quantified using magnetic resonance imaging (MRI). Cross-sections t...
Article
(a) To compare the magnitude of gluteus medius and tensor fascia lata activation between a group of subjects with clinical unilateral hip osteoarthritis and a group of healthy older adults. (b) To compare the magnitude of activation of the gluteus medius and tensor fascia lata between sides in a group of subjects with clinical unilateral hip osteoa...
Article
The response of the abdominal muscles to voluntary contraction of the pelvic floor (PF) muscles was investigated in women with no history of symptoms of stress urinary incontinence to determine whether there is co-activation of the muscles surrounding the abdominal cavity during exercises for the PF muscles. Electromyographic (EMG) activity of each...
Article
The response of the abdominal muscles to voluntary contraction of the pelvic floor (PF) muscles was investigated in women with no history of symptoms of stress urinary incontinence to determine whether there is co-activation of the muscles surrounding the abdominal cavity during exercises for the PF muscles. Electromyographic (EMG) activity of each...
Article
Activiteit van de rompspieren is essentieel voor het handhaven van de stabiliteit van de lumbale wervelkolom vanwege de instabiele structuur van dat deel van de wervelkolom. Er werd een model voor het evalueren van deze functie ontwikkeld bestaande uit het evalueren van de reactie van de lumbale multifidus en abdominale spieren ten opzichte van de...
Article
The ability of surface electrodes to accurately detect the activity of a particular muscle relies not only on their being placed over the muscle but also on their position in relation to muscle fibre orientation. For optimal pick-up of electromyographic (EMG) signals, surface electrodes are best aligned in parallel with the fibre orientation of the...
Article
Because the structure of the spine is inherently unstable, muscle activation is essential for the maintenance of trunk posture and intervertebral control when the limbs are moved. To investigate how the central nervous system deals with this situation the temporal components of the response of the muscles of the trunk were evaluated during rapid li...
Article
Fine-wire electromyography is primarily utilised for the recording of activity of the deep musculature, however, due to the location of these muscles, accurate electrode placement is difficult. Real-time ultrasound imaging (RTUI) of muscle tissue has been used for the guidance of the needle insertion for the placement of electrodes into the muscles...
Article
The contribution of transversus abdominis to spinal stabilization was evaluated indirectly in people with and without low back pain using an experimental model identifying the coordination of trunk muscles in response to a disturbances to the spine produced by arm movement. To evaluate the temporal sequence of trunk muscle activity associated with...
Article
Electromyographic (EMG) power spectral analysis of the electrical signals produced by a contracting muscle is emerging as a useful clinical tool. It has the potential to measure objectively the fatigue rate of individual muscles during an exertion. This technical note gives a simple introduction to the spectral changes of the EMG signals during fat...
Article
A very specific type of exercise has been devised which is proving to provide effective pain relief for chronic and recurrent back pain sufferers. The exercise approach focuses on retraining a precise co-contraction pattern of the deep trunk muscles, the transversus abdominis and lumbar multifidus. The approach is based on the knowledge of how musc...
Article
In the treatment of muscle imbalances around the knee, hip adduction and the contraction of adductor magnus have been used to facilitate vastus medialis obliquus (VMO) to a greater extent than vastus lateralis (VL). This study was conducted to investigate the effectiveness of this technique. Hip adduction was superimposed onto the contraction of qu...

Citations

... Multifidus and erector spinae are spine extensor muscles that are often perceived to perform different primary functions. While the large erector spinae muscles stabilize and move the spine, multifidus is perceived to be preferentially suited for stabilizing intervertebral segments (Donisch and Basmajian, 1972;Richardson and Jull, 1995;Moseley et al., 2002). By increasing its ability to generate passive tension, a primarily stabilizing muscle like multifidus would require less energy. ...
... A MCT programme demonstrated effectiveness at decreasing LBP and restoring trunk muscle size and function after prolonged bed rest . As outlined in Section 3.3, and in an ESA TT report on inflight CM for LBP (Snijders & Richardson 2005), LBP is an important consideration in the reconditioning of astronauts postflight and MCT is a vital part of early ESA postflight reconditioning (Section 4.4.2) but research is needed to provide evidence of the effectiveness of MCT in astronauts. ...
... Similar changes occur to ground-based analogs. The knee and ankle extensors incur among the largest losses (Belavy et al., 2009;Riley et al., 2002;Widrick et al., 1998). A 14-day bed rest led to a 9% knee extensor torque loss (Bamman et al., 1998). ...
... However, although the term core refers to several muscle groups, it should be considered a functional rather than an anatomical term [7,8]. This functional unit would act together, jointly, to provide the stability necessary to perform a task [9]. The musculature of the LAW and of the PF [10] maintains a close relationship with the lumbar and pubic regions. ...
... Before the attachment of the surface electrodes, the skin was abraded with a skin abrasive and alcohol was applied to reduce skin impedance to < 2 kΩ. Surface electrodes (BlueSensor N-00-S, METS Co., Tokyo, Japan) with an 8-mm diameter were attached to each muscle belly, which were parallel to the muscle fiber; for the IO, 1 cm medial and downward to the anterior superior iliac spine (Ng et al., 1998); EO, 15 cm lateral to the umbilicus (Okubo et al., 2010b); RA, 3 cm lateral to the umbilicus (Okubo et al., 2010b); LMF, 2 cm lateral to the L5 spinous process (Okubo et al., 2010a); LES, 3 cm lateral to the L3 spinous process (Okubo et al., 2010b); and MD, the midpoint between the acromion and deltoid tuberosity (Oshikawa et al., 2020). The inter-electrode distance was 20 mm. ...
... A comparison of TrA and IO muscle thicknesses between healthy subjects and patients with LBP during a one-sided simulated weight-bearing task showed a significant increase in the IO muscle thickness in patients with LBP (Hides et al., 2009;Hyde et al., 2012). Conventional drawin instruction involve palpating the medial inferior part of the anterior superior iliac spine (ASIS) and exhaling (Hides and Richardson, 2000). In recent years, it has been reported that the traditional method increases the IO activity, and the method of instruction needs to be reconsidered (Lee et al., 2018). ...
... In contrast to the general approach, this strategy aims to activate the lumbar multifidus independent of the other paraspinal muscles in the initial stages of rehabilitation and to then integrate appropriate multifidus activation into functional activities [5,6]. Specific exercises have been designed to activate the lumbar multifidus in an isometric, low load, tonic manner, while maintaining a neutral lumbar spine, to restore the proposed function of the lumbar multifidus and its contribution to spinal control [5][6][7][8][9]. The clinical literature has focused on the deep segmental fibers of the lumbar multifidus (DM) as the target of exercise interventions [5,8,10]. ...
... The essential component of back muscle rehabilitation were preferential retaining of the stabilizing muscles, with their initial low-level isometric activation and their progressive integration into functional tasks (27) . Some authors maintain that, when there's a deficit of the stabilizing muscles, incorrect compensation of their activity takes place from the movement muscles if classic exercise techniques are used, resulting in alterations of the acceptable muscle coordination patterns (27) and increasing the danger of re-injury of the spine (28) . ...
... However, the data used in the EMG signal synthesis algorithm evaluation were chosen at random from each subject's overall pool of data. Random selection was used to avoid bias in EMG patterns due to motor control changes occurring over the study period (see Belavy et al., 2005 andBelavý et al., 2007 for findings on motor control changes). ...
... The muscles of the abdomen play an important role in stabilization of lumbar vertebra. Especially, the abdominal muscles, such as the transversus abdominis (Tra) and the internus obliquus (IO), enable functional movements by providing stability to each segment of the lumbo-pelvic region when supporting the body's weight 2,3) . In short, the inner abdominal muscles, such as TrA, have impacts on balance by reacting to changes in body posture 4) . ...