Vijay Samuel Raj V
@jssphysiotherapy.edu.in
Associate Professor in Physiotherapy
J S S College of Physiotherapy
RESEARCH INTERESTS
Sports Physiotherapy, Biomechanics, Clinical kinesiology
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Vijay Samuel Raj and Mincy Thomas
Wiley
AbstractBackground and PurposePressure biofeedback is a tool that can detect the movement of a structure and may be used as an indicator of muscle function. It's widely used to measure the transversus abdominis (TrA) muscle activity. Pressure biofeedback (PBU) monitors the abdominal wall movement by measuring the pressure change during abdominal hollowing and can indirectly evaluate the TrA muscle function, which is considered as a valuable tool. The evaluation of the training of core muscles, including the transversus abdominis, requires a reliable outcome. Various methods using different positions are used to evaluate the transversus abdominis muscle function. However, it is noted that a standard way of evaluation and training still needs to be improved in research and clinical practice. This technical report discusses the optimal position and technique to measure the TrA muscle activity using PBU, with discussions on the merits and demerits of the body positions.MethodsThe technical report is presented with a literature review of the PBU measurement of TrA and through observation in the clinical practice. The evaluation methods of TrA, including the position to activate and isolate, are discussed in detail.ResultsTraining core muscles does not imply TrA activation, and evaluating isolated TrA and multifidus is essential before intervention. The abdominal drawing‐in maneuver effectively activates TrA in various evaluation positions of the body, but when using PBUs, it would be valid in a prone position.DiscussionDifferent body positions are practiced to train TrA and core muscles using PBU, commonly adopted by practice are in supine. It's noted that most of the studies lack in establishing the effectiveness of the position in evaluating the TrA muscle activity using PBU. The need for insight into an appropriate technique for evaluating TrA activity is addressed in this technical report. This report presents key points on the complete technique and concludes that the prone position is superior to other positions and recommended for measuring and recording the TrA activity using a PBU.
Jeslin T. Achens, Vijay S. Raj Victor, and Jakson K. Joseph
Elsevier BV
Muhammed Rashid, Jerin Mathew, Vijay Samuel Raj V, and Kavitha Raja
Elsevier BV
ABSTRACT Background Backpacks are an efficient way of manual carriage used by people of all ages, and is commonly used by schoolchildren. Carrying heavy backpacks may result in cumulative trauma later in life due to biomechanical adaptations during gait. Gait parameters are known to be sensitive to force vectors, which can be altered by load carrying. This study attempts to find the most favorable backpack weight using gait changes as an indicator. Methods This was an observational study conducted on twenty typically developing boys aged between 09 to 14 years. Gait analysis was done using standard recommendations, with increasing backpack loads with respect to their body weights. Gait cycles were captured using video cameras and analyzed using Kinovea0.8.25 motion analyzing software. Results As the backpack load increased, significant kinematic changes were noted in the child's ankle, knee, and hip joints. These changes were evident when the backpack load increased beyond 15% of their body weight. Conclusions This study concludes that the optimum weight that can be carried without having an impact on dynamic posture will be less than 15% of the body weight.