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Pranayama increases grip strength without lateralized effects

P Raghuraj1, R Nagarathna, H R Nagendra

  • 1Vivekananda Kendra Yoga Research Foundation, Bangalore.

Indian Journal of Physiology and Pharmacology
|April 1, 1997
PubMed
Summary
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Yoga breathing exercises, including nostril-specific techniques, significantly improved hand grip strength in children. These practices enhanced grip in both hands without causing any lateralization effect.

Area of Science:

  • Yoga and Exercise Physiology
  • Neuromuscular Performance
  • Respiratory Training

Background:

  • Hand grip strength is a key indicator of physical health and functional capacity.
  • Yoga practices, particularly breathing techniques (pranayama), are increasingly studied for their physiological effects.
  • The potential lateralized effects of specific breathing patterns on motor function remain an area of interest.

Purpose of the Study:

  • To investigate the impact of unilateral and alternate nostril breathing on hand grip strength.
  • To determine if specific yogic breathing practices induce a lateralized effect on grip strength.
  • To assess changes in grip strength following a 10-day yoga intervention in adolescents.

Main Methods:

  • 130 right-hand dominant schoolchildren (11-18 years) were randomly assigned to five groups.

Related Experiment Videos

  • Interventions included right-nostril breathing, left-nostril breathing, alternate-nostril breathing, breath awareness, and mudra practice over 10 days.
  • Hand grip strength was measured bilaterally before and after the intervention period.

    • Main Results:

    • Right-, left-, and alternate-nostril breathing groups demonstrated a significant increase in grip strength for both hands (4.1%–6.5%).
    • No significant lateralization effect (difference between right and left hand strength) was observed in any group.
    • Breath awareness and mudra practice groups showed no significant changes in hand grip strength.

    Conclusions:

    • Yogic breathing techniques, including unilateral and alternate nostril breathing, enhance bilateral hand grip strength.
    • These breathing practices do not appear to induce a lateralized effect on hand grip strength in this population.
    • Specific yogic breathing exercises may be beneficial for improving overall hand grip strength in adolescents.