The involvement of ankle muscles in maintaining balance in the upright posture is higher in elderly fallers

Cattagni, Thomas; Scaglioni, Gil; Laroche, Davy; Grémeaux, Vincent; Martin, Alain

doi:10.1016/j.exger.2016.02.010

Cited by 46 publications

(46 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…0°, 30°and 90°knee angle; 0°= full extension). The electrophysiological measurements were only collected on SOL muscle because this muscle presents (i) a high functional relevance (due to its involvement in balance control; Morasso & Schieppati, 1999;Loram et al, 2004;Cattagni et al, 2016), (ii) a physiological profile appropriate for investigating the Hreflex (Capaday & Stein, 1986;Palmieri et al, 2004;Tucker et al, 2005;Cattagni et al, 2014), and (iii) appears to be not affected to changes in knee angle (Alrowayeh et al, 2005). Because a lower stimulation intensity should be needed for evoking a given electrophysiological potential in MP and TP conditions compared with NP condition, we hypothesized that the self-reported discomfort would be higher in the NP condition than in the MP and TP conditions.…”

Section: Introductionmentioning

confidence: 99%

H‐reflex and M‐wave recordings: effect of pressure application to the stimulation electrode on the assessment of evoked potentials and subject's discomfort

Cattagni

Merlet

Cornu

et al. 2017

Clin Physio Funct Imaging

View full text Add to dashboard Cite

This study aimed to compare the effect of different types of pressure applied to the stimulation electrode on assessing the efficiency of Ia-α-motoneuron transmission of the soleus muscle and the associated discomfort using electrical nerve stimulation. Twelve healthy young adults participated in three experimental sessions (one for each knee angle). The amplitudes of the maximal Hoffmann reflex (H ) and motor potential (M ) were recorded from the soleus muscle at 0°, 30° and 90° knee angles (0° full extension) through three pressure applications to the stimulation electrode: no pressure, pressure with manual application and pressure using adhesive tape. The soleus H /M were calculated to assess the efficiency of Ia-α-motoneuron transmission during varied knee angles and pressure application to the stimulation electrode. At the stimulation intensity evoking soleus H and M , subjects were asked to orally provide a value between 'no discomfort' (0) and 'worst possible discomfort' (10). The application of pressure on the stimulation electrode, particularly using adhesive tape, decreased both the stimulation intensity needed to evoke an electrophysiological response and the associated self-reported discomfort (P<0·05), while the H /M remained constant. At the stimulation intensity evoking M , the electrical stimulation appeared to be more painful at 0° knee angle compared with 30° and 90° angles (P<0·01). To conclude, this study showed that a knee flexion and a pressure application to the stimulation electrode, especially using tape pressure, are recommended in the objective to reduce the patient/subjects' discomfort when eliciting evoked potentials on soleus muscle.

show abstract

Section: Introductionmentioning

confidence: 99%

H‐reflex and M‐wave recordings: effect of pressure application to the stimulation electrode on the assessment of evoked potentials and subject's discomfort

Cattagni

Merlet

Cornu

et al. 2017

Clin Physio Funct Imaging

View full text Add to dashboard Cite

show abstract

“…Center of pressure (CoP) displacement has been used to identify postural instability (Kalron and Achiron 2013), and it has a negative correlation with the maximal isometric torque of the ankle muscles (Cattagni et al 2014), as weakness of the ankle-stabilizing muscles is a major cause of postural instability (Cattagni et al 2014(Cattagni et al , 2016. Previous research has revealed that functional ankle instability is caused by a decreased ability to control postural sway when ankle invertor strength is decreased (Baumhauer et al 1995).…”

Section: Introductionmentioning

confidence: 99%

Increased Postural Sway and Changes in the Neuromuscular Activities of the Ankle Stabilizing Muscles at Ovulation in Healthy Young Women

Lee

Yim

2016

Tohoku J. Exp. Med.

View full text Add to dashboard Cite

Lateral ankle sprains are one of the most common injuries among the physically active subjects. Ankle inversion-eversion laxity is greater and dynamic postural control is less in women compared with men. The purpose of this study was to examine differences in postural sway and its effects on the neuromuscular activities of the ankle stabilizing muscles during the menstrual cycle in young women. Fourteen young women with regular menstrual cycles participated in this experiment. Postural sway and electromyographic signals of the lateral gastrocnemius, peroneus longus (PL), and tibialis anterior (TA) were recorded while the participants performed eight different balance tasks at ovulation and early follicular phase during one full menstrual cycle. Significantly greater postural sway in the two most difficult balance tasks was observed at ovulation compared to that in the early follicular phase (p < 0.001). A similar pattern was also observed in terms of PL activity, while TA activity was significantly greater in the most difficult balance task at ovulation. In addition, TA-PL co-contraction (TA/PL ratio) was significantly higher at ovulation compared with that in the follicular phase in the two most difficult balance tasks (p < 0.01). Young women could benefit from increased understanding of the varying neuromuscular activation patterns throughout the menstrual cycle. The results of this study suggest that health professionals should be aware of the physiological effects and the shifts in neuromuscular strategies in each menstrual cycle phase in order to prevent increased risk of lower extremity injury.

show abstract

“…The CoP displacement has been used to identify definite postural instability (Kalron and Achiron 2013) and has a negative correlation with the maximal isometric torque of ankle muscles (Cattagni et al 2014). Weakness of anklestabilizing muscles is a major cause of postural instability (Cattagni et al 2014(Cattagni et al , 2016.…”

Section: Introductionmentioning

confidence: 99%

Correlation between Mechanical Properties of the Ankle Muscles and Postural Sway during the Menstrual Cycle

Yim

Petrofsky²,

Lee

2018

Tohoku J. Exp. Med.

View full text Add to dashboard Cite

Ankle and foot injuries are common among athletes and physically active individuals. The most common residual disability, ankle sprain, is characterized by instability along with postural sway. If the supporting structures around a joint become lax, posture stability and balance are also affected. Previous studies have examined muscle stiffness and elasticity and postural sway separately; however, the relationship between these factors is yet unknown. It is well known that the levels of sex hormones, especially estrogen, change in women over the phase of the menstrual cycle. Therefore, this study examined the relationship between the mechanical properties of tissue and balance activity using a non-invasive digital palpation device to determine if they undergo any changes over the menstrual cycle in young women. Sixteen young women with regular menstrual cycles completed the study. Tone, stiffness, and elasticity of the ankle muscles (lateral gastrocnemius, peroneus longus, and tibialis anterior) were measured using a non-invasive digital palpation device. Postural sway was recorded while the participants performed balance tasks during ovulation and menstruation. Significantly greater posture sway characteristics and ankle muscle elasticity were found during ovulation than during menstruation; lower tone and stiffness of the ankle muscles were observed at ovulation (p < 0.05). Additionally, weak-to-strong relationships between ankle muscle mechanical properties and postural sway characteristics were found (p < 0.05). These results suggest the effect of estrogen on human connective tissues. We therefore postulate that estrogen increases joint and muscle laxity and affects posture stability according to the phase of the menstrual cycle.

show abstract

The involvement of ankle muscles in maintaining balance in the upright posture is higher in elderly fallers

Cited by 46 publications

References 43 publications

H‐reflex and M‐wave recordings: effect of pressure application to the stimulation electrode on the assessment of evoked potentials and subject's discomfort

H‐reflex and M‐wave recordings: effect of pressure application to the stimulation electrode on the assessment of evoked potentials and subject's discomfort

Increased Postural Sway and Changes in the Neuromuscular Activities of the Ankle Stabilizing Muscles at Ovulation in Healthy Young Women

Correlation between Mechanical Properties of the Ankle Muscles and Postural Sway during the Menstrual Cycle

Contact Info

Product

Resources

About