Research Article

Comparing Once- versus Twice-Weekly Yoga Classes for Chronic Low Back Pain in Predominantly Low Income Minorities: A Randomized Dosing Trial

Table 5

Adverse events*.

Adverse Event, 1 class/week
( )
2 classes/week
( )

Back pain 8
Neck pain
Sciatica
Headache
Dizziness
Knee pain
Ankle pain
Shoulder pain
Abdominal pain
Wheezing
Total adverse event reports
Related to intervention
 Definitely
 Possibly
 Serious

Average number of classes attended in the once-weekly group was 8.6 versus 8.2 ( ) for those with and without adverse events, respectively. The average number of classes attended in the twice-weekly group was 15.5 versus 12.7 ( ) for those with and without adverse events, respectively. Mean home practice in the once-weekly group was 942 versus 1192 minutes ( ) for those with and without adverse events, respectively. Mean home practice in the twice-weekly group was 1224 versus 1104 minutes ( ) for those with and without adverse events, respectively.
Included one participant judged to have a serious adverse event due to persistent symptoms of cervical radiculopathy, possibly from hyperextension of the neck during cow pose in the setting of preexisting cervical disc disease.
Serious adverse events were defined as any adverse event that resulted in one or more of the following outcomes: death, life-threatening event, inpatient hospitalization, and persistent or significant disability/incapacity; congenital anomaly; or an important medical event based upon appropriate medical judgment.