Chhaya Kharya

ORCID: 0000-0003-1070-5445
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About
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Research Areas
  • Heart Rate Variability and Autonomic Control
  • Mindfulness and Compassion Interventions
  • EEG and Brain-Computer Interfaces
  • Non-Invasive Vital Sign Monitoring
  • Sleep and Wakefulness Research
  • Cardiac Health and Mental Health
  • Neuroscience of respiration and sleep
  • Long-Term Effects of COVID-19
  • Neural dynamics and brain function
  • Functional Brain Connectivity Studies
  • Medicinal Plants and Bioactive Compounds
  • Cardiovascular and exercise physiology
  • COVID-19 and Mental Health
  • Neuroscience, Education and Cognitive Function

All India Institute of Medical Sciences
2011-2025

Sri Sathya Sai Institute of Higher Medical Sciences
2017-2023

National Institute of Mental Health and Neurosciences
2023

Indian Council of Medical Research
2023

All India Institute of Medical Sciences Jodhpur
2023

Shriram Institute for Industrial Research
2022

Objectives: We assessed the frontal cerebral hemodynamic alterations and neuro-cardiovascular interactions during alternate nostril breathing (ANB), a slow yogic manoeuvre. Material Methods: Five healthy male volunteers (age 30 ± 3.8 years) practised ANB for 5 min at five breaths per minute with timing ratio (seconds) of 4:2:4:2 (inspiration: Pause: Expiration: Pause). recorded 16 channels functional near-infrared spectroscopy prefrontal cortex (PFC) region brain, electrocardiography,...

10.25259/ijpp_546_2023 article EN Indian Journal of Physiology and Pharmacology 2025-02-07

The breathing processes are known to modulate cardiac autonomic tone and improve psychological status. We investigated following long Sudarshan Kriya Yoga (SKY) using heart rate variability (HRV) skin conductance level (SCL).Thirty healthy volunteers (age 28.3 ± 8.4 years; 23 M: 7 F) participated in the study. Electrocardiogram (ECG) SCL were recorded for 5 min each, before after SKY. Long SKY is a combination of pranayama cyclic rhythmic performed by guided audio instructions. HRV analysis...

10.1089/acm.2016.0391 article EN The Journal of Alternative and Complementary Medicine 2017-07-10

Breathing exercises are believed to modulate the cardiovascular oscillations in body. To assess validity of assumption and understand underlying mechanism, key autonomic regulatory parameters such as heart rate variability (HRV), blood pressure (BPV) baroreflex sensitivity (BRS) were recorded during controlled slow yogic breathing. Alternate nostril breathing (ANB) was selected manoeuvre.Twelve healthy volunteers (age 30±3.8 yr) participated study. ANB performed at a frequency 5 breaths per...

10.4103/ijmr.ijmr_830_15 article EN The Indian Journal of Medical Research 2017-04-01

Respiration is known to modulate neuronal oscillations in the brain and measured by electroencephalogram (EEG). Sudarshan Kriya Yoga (SKY) a popular breathing process established for its significant effects on various aspects of physiology psychology.This study aimed observe multifrequency bands interhemispheric synchronization following SKY.This employed before- after-study design.Forty healthy volunteers (average age 25.45 ± 5.75, 23 males 17 females) participated study. Nineteen-channel...

10.4103/ijoy.ijoy_25_19 article EN cc-by-nc-sa International Journal of Yoga 2020-01-01

ABSTRACT Meditation has been practised for millennia but the neuroscientific understanding of dynamics is still lacking. Sudarshan Kriya Yoga (SKY) an evidence based breathing meditation technique that utilizes rhythmic to induce a deep state relaxation and calm. Multiple studies have found benefits SKY from genetic, physiological, psychological behaviour levels. We collected Electroencephalographic (EEG) data in 43 subjects who underwent analysed brain rhythms at different stages namely...

10.1101/2022.03.09.483685 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2022-03-12

Pranayama practices are being used since ancient times as a holistic approach by saints and yogis to improve control the subtle phenomenon of brain hence bring mind body in synchrony using breath link. This work is an attempt understand this process attaining higher state cognition followed consciousness. From Electroencephalogram (EEG) signal analysis, it was observed that with increase practices, frequency oscillation shifts from lower-frequency range higher-frequency significant rise...

10.1504/ijbet.2011.042494 article EN International Journal of Biomedical Engineering and Technology 2011-01-01

Sudarshan Kriya Yoga (SKY – a rhythmic cyclic breathing) is known to produce several physiological changes in human body. Earlier it has been reported that SKY improves cardiovascular modulations, namely increase heart rate variability. To observe the synchronization oscillatory modulations cardiac autonomic tone and ventilatory exchange during Long (LSKY). LSKY sequential combination of pranayama ujjayi breath, bhastrika, breathing followed by yog-nidra. Regular practitioners from Art...

10.1016/j.jaim.2023.100867 article EN cc-by-nc-nd Journal of Ayurveda and Integrative Medicine 2024-01-01

Background Stress leads to immune system dysregulation and dyshomeostasis at the gene level. Mind-body practices are known influence genomic expression, leading better health quality of life. Objective To assess effect Advanced Meditation Program (AMP) on mRNA expression pro-inflammatory antioxidative genes among those already practicing Sudarshan Kriya Yoga (SKY). Methods A total 97 healthy volunteers participated in study, distributed into two groups. The Group I SKY practitioners attended...

10.7759/cureus.41377 article EN Cureus 2023-07-04
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