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Ajay P Gautam - One of the best experts on this subject based on the ideXlab platform.

  • EFFECTIVENESS OF C1-C2 SUSTAINED NATURAL APOPHYSEAL GLIDE COMBINED WITH DRY NEEDLING ON Pressure Point THRESHOLD AND HEADACHE DISABILITY IN CERVICOGENIC HEADACHE.
    Asian Journal of Pharmaceutical and Clinical Research, 2018
    Co-Authors: Ramesh Chandra Patra, Patitapaban Mohanty, Ajay P Gautam
    Abstract:

    Objective: The main objective of this study was to evaluate the effectiveness of dry needling and mulligan C1-C2 sustained natural apophyseal glides (SNAGs) in increasing Pressure Point threshold and reducing headache disability in patients with CGH. Methods: This study was conducted on 150 patients. They were divided into three groups for the purpose of the study. Group A was referred to as the dry needling group. They were subjected to dry needling for treating the pain. Group B was the manual therapy group. The patients in this group were subjected to C1-C2 SNAGs. Group C was the combined group. Patients belonging to this group were given C1-C2 SNAGs along with dry needling. Results: Statistical analysis paired t-test was used for comparison of the mean within every group where it showed significant improvement in all the parameter (p

  • EFFECTIVENESS OF C1-C2 SUSTAINED NATURAL APOPHYSEAL GLIDE COMBINED WITH DRY NEEDLING ON Pressure Point THRESHOLD AND HEADACHE DISABILITY IN CERVICOGENIC HEADACHE.
    Asian Journal of Pharmaceutical and Clinical Research, 2018
    Co-Authors: Ramesh Chandra Patra, Patitapaban Mohanty, Ajay P Gautam
    Abstract:

     Objective: The main objective of this study was to evaluate the effectiveness of dry needling and mulligan C1-C2 sustained natural apophyseal glides (SNAGs) in increasing Pressure Point threshold and reducing headache disability in patients with CGH.Methods: This study was conducted on 150 patients. They were divided into three groups for the purpose of the study. Group A was referred to as the dry needling group. They were subjected to dry needling for treating the pain. Group B was the manual therapy group. The patients in this group were subjected to C1-C2 SNAGs. Group C was the combined group. Patients belonging to this group were given C1-C2 SNAGs along with dry needling.Results: Statistical analysis paired t-test was used for comparison of the mean within every group where it showed significant improvement in all the parameter (p<0.05).Conclusion: There was a consistent reduction in tenderness and improvement in disability of the patients belonging to all groups. However, Group C, where the patients were subjected to combined treatment, showed better results. Results of this study indicate that dry needling along with mulligan C1-C2 SNAGs is more beneficial in patients suffering from cervicogenic headaches.

Ramesh Chandra Patra - One of the best experts on this subject based on the ideXlab platform.

  • EFFECTIVENESS OF C1-C2 SUSTAINED NATURAL APOPHYSEAL GLIDE COMBINED WITH DRY NEEDLING ON Pressure Point THRESHOLD AND HEADACHE DISABILITY IN CERVICOGENIC HEADACHE.
    Asian Journal of Pharmaceutical and Clinical Research, 2018
    Co-Authors: Ramesh Chandra Patra, Patitapaban Mohanty, Ajay P Gautam
    Abstract:

    Objective: The main objective of this study was to evaluate the effectiveness of dry needling and mulligan C1-C2 sustained natural apophyseal glides (SNAGs) in increasing Pressure Point threshold and reducing headache disability in patients with CGH. Methods: This study was conducted on 150 patients. They were divided into three groups for the purpose of the study. Group A was referred to as the dry needling group. They were subjected to dry needling for treating the pain. Group B was the manual therapy group. The patients in this group were subjected to C1-C2 SNAGs. Group C was the combined group. Patients belonging to this group were given C1-C2 SNAGs along with dry needling. Results: Statistical analysis paired t-test was used for comparison of the mean within every group where it showed significant improvement in all the parameter (p

  • EFFECTIVENESS OF C1-C2 SUSTAINED NATURAL APOPHYSEAL GLIDE COMBINED WITH DRY NEEDLING ON Pressure Point THRESHOLD AND HEADACHE DISABILITY IN CERVICOGENIC HEADACHE.
    Asian Journal of Pharmaceutical and Clinical Research, 2018
    Co-Authors: Ramesh Chandra Patra, Patitapaban Mohanty, Ajay P Gautam
    Abstract:

     Objective: The main objective of this study was to evaluate the effectiveness of dry needling and mulligan C1-C2 sustained natural apophyseal glides (SNAGs) in increasing Pressure Point threshold and reducing headache disability in patients with CGH.Methods: This study was conducted on 150 patients. They were divided into three groups for the purpose of the study. Group A was referred to as the dry needling group. They were subjected to dry needling for treating the pain. Group B was the manual therapy group. The patients in this group were subjected to C1-C2 SNAGs. Group C was the combined group. Patients belonging to this group were given C1-C2 SNAGs along with dry needling.Results: Statistical analysis paired t-test was used for comparison of the mean within every group where it showed significant improvement in all the parameter (p<0.05).Conclusion: There was a consistent reduction in tenderness and improvement in disability of the patients belonging to all groups. However, Group C, where the patients were subjected to combined treatment, showed better results. Results of this study indicate that dry needling along with mulligan C1-C2 SNAGs is more beneficial in patients suffering from cervicogenic headaches.

Patitapaban Mohanty - One of the best experts on this subject based on the ideXlab platform.

  • EFFECTIVENESS OF C1-C2 SUSTAINED NATURAL APOPHYSEAL GLIDE COMBINED WITH DRY NEEDLING ON Pressure Point THRESHOLD AND HEADACHE DISABILITY IN CERVICOGENIC HEADACHE.
    Asian Journal of Pharmaceutical and Clinical Research, 2018
    Co-Authors: Ramesh Chandra Patra, Patitapaban Mohanty, Ajay P Gautam
    Abstract:

    Objective: The main objective of this study was to evaluate the effectiveness of dry needling and mulligan C1-C2 sustained natural apophyseal glides (SNAGs) in increasing Pressure Point threshold and reducing headache disability in patients with CGH. Methods: This study was conducted on 150 patients. They were divided into three groups for the purpose of the study. Group A was referred to as the dry needling group. They were subjected to dry needling for treating the pain. Group B was the manual therapy group. The patients in this group were subjected to C1-C2 SNAGs. Group C was the combined group. Patients belonging to this group were given C1-C2 SNAGs along with dry needling. Results: Statistical analysis paired t-test was used for comparison of the mean within every group where it showed significant improvement in all the parameter (p

  • EFFECTIVENESS OF C1-C2 SUSTAINED NATURAL APOPHYSEAL GLIDE COMBINED WITH DRY NEEDLING ON Pressure Point THRESHOLD AND HEADACHE DISABILITY IN CERVICOGENIC HEADACHE.
    Asian Journal of Pharmaceutical and Clinical Research, 2018
    Co-Authors: Ramesh Chandra Patra, Patitapaban Mohanty, Ajay P Gautam
    Abstract:

     Objective: The main objective of this study was to evaluate the effectiveness of dry needling and mulligan C1-C2 sustained natural apophyseal glides (SNAGs) in increasing Pressure Point threshold and reducing headache disability in patients with CGH.Methods: This study was conducted on 150 patients. They were divided into three groups for the purpose of the study. Group A was referred to as the dry needling group. They were subjected to dry needling for treating the pain. Group B was the manual therapy group. The patients in this group were subjected to C1-C2 SNAGs. Group C was the combined group. Patients belonging to this group were given C1-C2 SNAGs along with dry needling.Results: Statistical analysis paired t-test was used for comparison of the mean within every group where it showed significant improvement in all the parameter (p<0.05).Conclusion: There was a consistent reduction in tenderness and improvement in disability of the patients belonging to all groups. However, Group C, where the patients were subjected to combined treatment, showed better results. Results of this study indicate that dry needling along with mulligan C1-C2 SNAGs is more beneficial in patients suffering from cervicogenic headaches.

Nicholas M. Spyrou - One of the best experts on this subject based on the ideXlab platform.

  • Light impulses at the dark- to glow discharge transition in a low Pressure Point-to-plane gap
    European Physical Journal-applied Physics, 2003
    Co-Authors: Nicholas M. Spyrou, A E Ercilbengoa, J.-f. Loiseau
    Abstract:

    The transition from low Pressure corona (dark discharge) to glow discharge is studied for nitrogen in the 1–10 mbar Pressure range in DC positive Point-to-plane geometry for various cathode materials. A systematic study of the spatial distribution of the discharge's light intensity, correlated with the current impulses recorded at the cathode, is performed by focusing on the slit of a photomultiplier the light emitted from small regions along the gap axis. For Pressures higher than 2 mbar, the luminous activity of the discharge, amplified by a photomultiplier, is characterized by complex impulse waveforms. A study of these waveforms shows that a weak light peak initiated at the anode, propagates towards the cathode with increasing velocity and amplitude. Travelling slower than a streamer, this impulse may be attributed to a weak ionizing front accelerating in the middle of the gap. A second peak is superimposed in the anode-sided half interval, the interpretation of which, supported also by numerical simulations, could reveal the fast propagation of a new front. The influence of cathode material on this second peak shows that it is in fact linked to the secondary emission of the cathodic region. From the analysis of these results, the transition appears to be a complex physical process beginning by a weak ionizing wave starting at the anode and propagating towards the cathode. The arrival of this wave in the cathode region enhances the local field and contributes to the amplification of the cathodic secondary processes. Arriving in the anode region, the secondary electrons initiate a new ionizing wave, stronger than the first one, which crosses the gap very rapidly and establishes the glow discharge.

  • A study of the behavior of a d.c. pulsed low Pressure Point-to-plane discharge
    European Physical Journal-applied Physics, 2003
    Co-Authors: S. Potamianou, Nicholas M. Spyrou, B. Held
    Abstract:

    A numerical study of a nitrogen cold plasma created by a pulsed discharge in a Point-to-plane geometry at 4 torr is presented. The relative model is based on fluid description of the cold plasma, on Poisson's equation for the electric field and on balance equations for the excited population concerning only some vibrational band of molecular nitrogen (C 3 ∏ u , B 3 ∏ g and A $^3\sum_{\rm u}^+$ ). Secondary ionization phenomena and longitudinal diffusion effects are included in the model and their contribution to the glow-discharge establishment is studied. Results for space and time variations of the charged particles, electric field, potential and electronic current densities are reported. Particular attention was paid to the physical factors forming the cathodic layer and influencing its evolution. Results concerning the influence of the electronic current density on the creation of excited (radiative and metastables) particles are presented. According to these results, the plasma of the glow discharge occurs by means of three successive sequences with different characteristics. During the first sequence the gap is slowly filled of ions formed close to the anode, then in the second one an ionizing front formed close to the anode is propagating towards the cathode with an average velocity of 2 × 10 6  cm/s. It forms the cathodic layer zone and starts the participation of the secondary ionization effects leading to the third sequence which deals with the glow discharge establishment. The first significant production of excited states occurs within the ionizing front but the most important one is obtained when the glow discharge is established. It has been shown that at 4 torr and a gap of 1 cm, a mean electronic current density of 5 mA/cm 2 is sufficient to create 10 9  cm −3 of (B 3 ∏ g , v = 0), 10 8  cm −3 of (C 3 ∏ u , v = 0) and 10 11  cm −3 of (A $^3\sum_{\rm u}^+$ , v = 0 ) excited particles.

  • Numerical study of a medium Pressure Point-to-plane discharge
    Journal of Physics D, 2002
    Co-Authors: S. Potamianou, Nicholas M. Spyrou, J.-f. Loiseau
    Abstract:

    A numerical study of an electrical discharge in nitrogen in the medium Pressure range (10-50 Torr) in a non-uniform electric field (Point-to-plane geometry) is presented. It is obtained by solving numerically the continuity equations for electrons and positive ions coupled with Poisson's equation and concerns space-time evolution of electron and ion densities as well as electric field and potential distributions along the discharge axis for distinct values of the applied voltage. These results show that the transition to glow discharge occurs via distinct streamer-like discharge stages. During each stage a potential ionization wave is formed, propagating with distinct velocities extending from 105 to 107 cm s-1. In the last discharge stage, the ionization potential wave, significantly sustained by the secondary ionization phenomena, contributes to the growth of the discharge current so that the transition to the glow discharge is attained. The comparison with experimental results shows a good qualitative agreement.

  • Current and light waveforms associated with the dark- to glow-discharge transition in medium- and low-Pressure Point-to-plane gaps
    Journal of Physics D, 2000
    Co-Authors: A E Ercilbengoa, J.-f. Loiseau, Nicholas M. Spyrou
    Abstract:

    In nitrogen, for Pressures below 200 Torr, the anodic glow is characterized by current oscillations, superimposed on a dc component. These oscillations may be attributed to fluctuations of the space charge, structured as a double sign sheath (double layer). The transition from a dark to a glow discharge can occur either directly from the oscillating state or, in the 20-200 Torr Pressure range, through the appearance of a particular regime characterized by recurrent impulses. Both cases are considered here in the case of pure nitrogen, and the influence of Pressure and gap length on the current and light waveforms is studied. An analysis of the light emitted by the discharge shows that a luminous structure, formed in the anode region, propagates towards the cathode, and travels a few millimetres before being absorbed by the sheath structure. This may be interpreted as the beginning of an ionizing front, which cannot propagate and is choked by the double layer. For higher applied voltages, the double layer cannot be maintained, and the current limiting effect seems to be suppressed during the time for charge evacuation; the current and light impulses corresponding to this latter case are then integrated into the much larger ones which characterize the glow discharge.

J.-f. Loiseau - One of the best experts on this subject based on the ideXlab platform.

  • Light impulses at the dark- to glow discharge transition in a low Pressure Point-to-plane gap
    European Physical Journal-applied Physics, 2003
    Co-Authors: Nicholas M. Spyrou, A E Ercilbengoa, J.-f. Loiseau
    Abstract:

    The transition from low Pressure corona (dark discharge) to glow discharge is studied for nitrogen in the 1–10 mbar Pressure range in DC positive Point-to-plane geometry for various cathode materials. A systematic study of the spatial distribution of the discharge's light intensity, correlated with the current impulses recorded at the cathode, is performed by focusing on the slit of a photomultiplier the light emitted from small regions along the gap axis. For Pressures higher than 2 mbar, the luminous activity of the discharge, amplified by a photomultiplier, is characterized by complex impulse waveforms. A study of these waveforms shows that a weak light peak initiated at the anode, propagates towards the cathode with increasing velocity and amplitude. Travelling slower than a streamer, this impulse may be attributed to a weak ionizing front accelerating in the middle of the gap. A second peak is superimposed in the anode-sided half interval, the interpretation of which, supported also by numerical simulations, could reveal the fast propagation of a new front. The influence of cathode material on this second peak shows that it is in fact linked to the secondary emission of the cathodic region. From the analysis of these results, the transition appears to be a complex physical process beginning by a weak ionizing wave starting at the anode and propagating towards the cathode. The arrival of this wave in the cathode region enhances the local field and contributes to the amplification of the cathodic secondary processes. Arriving in the anode region, the secondary electrons initiate a new ionizing wave, stronger than the first one, which crosses the gap very rapidly and establishes the glow discharge.

  • Numerical study of a medium Pressure Point-to-plane discharge
    Journal of Physics D, 2002
    Co-Authors: S. Potamianou, Nicholas M. Spyrou, J.-f. Loiseau
    Abstract:

    A numerical study of an electrical discharge in nitrogen in the medium Pressure range (10-50 Torr) in a non-uniform electric field (Point-to-plane geometry) is presented. It is obtained by solving numerically the continuity equations for electrons and positive ions coupled with Poisson's equation and concerns space-time evolution of electron and ion densities as well as electric field and potential distributions along the discharge axis for distinct values of the applied voltage. These results show that the transition to glow discharge occurs via distinct streamer-like discharge stages. During each stage a potential ionization wave is formed, propagating with distinct velocities extending from 105 to 107 cm s-1. In the last discharge stage, the ionization potential wave, significantly sustained by the secondary ionization phenomena, contributes to the growth of the discharge current so that the transition to the glow discharge is attained. The comparison with experimental results shows a good qualitative agreement.

  • Current and light waveforms associated with the dark- to glow-discharge transition in medium- and low-Pressure Point-to-plane gaps
    Journal of Physics D, 2000
    Co-Authors: A E Ercilbengoa, J.-f. Loiseau, Nicholas M. Spyrou
    Abstract:

    In nitrogen, for Pressures below 200 Torr, the anodic glow is characterized by current oscillations, superimposed on a dc component. These oscillations may be attributed to fluctuations of the space charge, structured as a double sign sheath (double layer). The transition from a dark to a glow discharge can occur either directly from the oscillating state or, in the 20-200 Torr Pressure range, through the appearance of a particular regime characterized by recurrent impulses. Both cases are considered here in the case of pure nitrogen, and the influence of Pressure and gap length on the current and light waveforms is studied. An analysis of the light emitted by the discharge shows that a luminous structure, formed in the anode region, propagates towards the cathode, and travels a few millimetres before being absorbed by the sheath structure. This may be interpreted as the beginning of an ionizing front, which cannot propagate and is choked by the double layer. For higher applied voltages, the double layer cannot be maintained, and the current limiting effect seems to be suppressed during the time for charge evacuation; the current and light impulses corresponding to this latter case are then integrated into the much larger ones which characterize the glow discharge.