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Rajajeyakumar, M.
- Immediate Effect of Different Pranayam on Short Term Heart Rate Variability in Health Care Students - A Preliminary Study
Authors
1 Department of Physiology, Chennai Medical College Hospital & Research Centre, Trichy, IN
2 Department of Physiology, Aarupadai Veedu Medical College & Hospital Pondicherry, IN
3 Department of Physiology, JIPMER), Pondicherry, IN
4 Department of Physiology, Mahatma Gandhi Medical College & Research Centre, Pondicherry, IN
5 Department of ACYTER (JIPMER), Pondicherry, IN
6 CYTER, Mahatma Gandhi Medical College & Research Centre Pondicherry, IN
Source
International Journal of Physiology, Vol 2, No 1 (2014), Pagination: 39-43Abstract
Introduction: Yoga produces consistent physiological changes and have sound scientific basis. Heart rate variability (HRV) has come to be widely used as a non-invasive tool to assess autonomic function in physiological as well as disease states. In view of this, the present study was aimed to study the effect of suryanadi(SNP) and chandranadi pranayams(CNP) on HRV in healthy young volunteers.
Methodology: 11male volunteers aged between 20-30yrs were assigned to a sequence randomly. Each volunteer was taught both SNP and CNP by trained yoga teacher and made to practice under direct supervision between 4-6.30 pm in ACYTER lab, JIPMER. HRV was recorded by using BIOHARNESS AcqKnowledge 4.1 version and analyzed by Kubios HRV 2.00 software. Basal resting parameters and HRV were recorded for 5 minutes after that SNP was performed in six cycles per minute for 5 minutes followed by 5 min rest. Three such sessions (before, during and after) HRV were recorded. The same procedure and recording ware followed for CNP.
Results: The time domain analysis of SNP revealed an increased heart rate with a decreased RMSSD, However the SDNN was increased. Frequency domain analysis, increased LF power and decreased HF power and LF/HF ratio increased after the intervention. In CNP, the time domain analysis, showed decreased heart rate and an increased pNN50. The frequency domain analysis revealed an increased HF power with decreased LF/HF ratio.
Discussion: SNP increase the sympathetic activity and CNP increases the parasympathetic activity and these can be appropriately advocated in many chronic cardiovascular diseases where the autonomic imbalance is one of the primary derangements.
Keywords
Suryanadi Pranayam, Chandranadi Pranayam , Heart Rate Variability
- Evaluation of Peripheral and Central Neuropathy in Type 2 Diabetes Mellitus Patients by Using Somatosensory Evoked Potential
Authors
1 Department of Physiology, Shri Sathya Sai Medical College and Research Institute, Chennai, IN
2 Department of Physiology, Thanjavur Medical College, Thanjavur, IN
3 Department of Neurology, Stanley Medical College, Chennai, IN
4 Chennai Medical College Hospital and Research Centre, Trichy, IN
Source
International Journal of Physiology, Vol 2, No 1 (2014), Pagination: 50-53Abstract
Introduction: In recent days, central nervous system is most commonly affected by complication of diabetes mellitus and it could be determined by Somatosensory evoked potential (SSEP). This is a non invasive tool to diagnose the degree of peripheral and central nervous system involvement. So in view of this the present study is conducted to evaluate peripheral and central neuropathy in patients with type 2 Diabetes mellitus by using SSEP.
Method: Forty patients(40) with type 2 Diabetes mellitus(DM) of 8 to 12 years duration in 40 to 60 years age group including both gender were taken as a study group (Group 1).They were selected from diabetic out patient in Thanjavur medical college hospital, and compared with control group (Group 2) who were normal subjects and was age and sex matched. All groups were subjected to physical examination and laboratory investigations including Fasting blood glucose, renal functions in addition to SSEP. Cervical N13, cortical N20 latencies and central conduction time (N20- N13) was evaluated using median SSEP and compared between the study group and control group and statistically analyzed.
Result: Somatosensory evoked potential of (median) cervical N13, cortical N20 latencies and central conduction time (N20- N13) were prolonged in the study group compared to control group and the difference was statistically significant.
Conclusion: Our study shows that both Peripheral and cortical latencies of SSEP were evaluated and observed. Prolonged latencies suggest the existence of peripheral and central neuropathy in type 2 DM.
Keywords
Somatosensory Evoked Potential (SSEP), Diabetes Mellitus (DM), Central Conduction Time (CCT)- Mind Mapping Applied as a Pedagogical Tool for MBBS Students
Authors
1 Department of Physiology, The Oxford Medical College, Hospital and Research Centre, Bangalore, IN
2 The Oxford Medical College, Hospital and Research Centre, Bangalore, IN
3 Department of Physiology, Trichy SRM Medical College Hospital & Research Centre (Affiliated by The Tamilnadu Dr. MGR Medical University, Chennai), IN
Source
International Journal of Physiology, Vol 8, No 1 (2020), Pagination: 91-96Abstract
Background: To assess efficacy of mind mapping technique in lecture classes versus traditional didactic lectures on immediate and long-term memory.
Materials & Method: 150 First MBBS students, randomized into two groups (75 each), by simple random technique (odd roll number-group 1, even roll number-group 2). Study group (Mind mapping group) Control Group (didactic lecture /non mind mapping group).Batches reversed for another topic to address ethical issues.MCQ test was taken after class for short term memory, after a month for long term memory.
Results: Descriptive and inferential statistics (paired t test and independent t test) was used to compare the data. P value of Mind Mapping group when compared to Non Mind Mapping group in terms of both short term and long term memory was highly significant (p< 0.0001) for both topic 1 and 2. P value was not statistically significant when short term and long term memory of mind mapping group was compared. But highly significant p value (p< 0.0001) was observed when short term and long term memory of Non Mind Mapping group was compared.
Conclusion: The performance of Mind Map Group is better than the Non Mind Map Group both in terms of short term and long term memory.
Mind mapping used as a pedagogical tool can improve the academic scores of students.
Keywords
Didactic Lectures, Mind Map, MBBS Course, Pedagogical Tool, Physiology Examinations Reproducibility of Concepts.References
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