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Trunk and hip muscle activation during yoga poses: Do sex-differences exist?
Lori A Bolgla1, Leonard Amodio1, Kristen Archer1
1Department of Physical Therapy, Augusta University, 987 St Sebastian Way, Augusta, GA 30912, USA.
Objective:
To compare core activation during yoga between males and females.
Methods:
Surface electromyography was used to quantify rectus abdominis (RA), abdominal obliques (AO), lumbar extensors (LE), and gluteus maximus (GMX) activation during four yoga poses. Data were expressed as 100% of a maximum voluntary isometric contraction. Mixed-model 2 × 2 analyses of variance with repeated measures were used to determine between-sex differences in muscle activity.
Results:
Females generated greater RA activity than males during the High Plank (P < 0.0001) and Dominant-Side Warrior 1 (P = 0.017). They generated greater AO (P < 0.0001) and GMX (P = 0.004) activity during the High Plank (P < 0.0001). No between-sex EMG activity differences existed for the Chair and Upward Facing Dog.
Conclusion:
Findings have provided preliminary evidence for between-sex differences in muscle activation during yoga poses. Clinicians should consider such differences when prescribing yoga to improve muscle strength and endurance.
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