Participants believed that there were distinctions between general activity , real/fitness exercise , and medical exercise .
People participating in exercise classes and group work may be more comfortable when matched for abilities and experience .
When an intervention interferes with everyday life and appears to be ineffective or too difficult to implement , people make a reasoned decision to discontinue .
DISCUSSION People are likely to prefer and participate in exercise or training programs and activities that are design ed with consideration of their preferences , circumstances , fitness levels , and exercise experiences
OBJECTIVES The global burden of low back pain is the highest ranked condition contributing to years of living with disability .
Exercise is moderately effective , and adherence to exercise may improve if participants are engaged .
Identification of elements that enhance engagement would enable clinicians to prescribe appropriate interventions .
The review objective was to identify and synthesize qualitative empirical studies that have explored beliefs about exercise therapy of people with nonspecific chronic low back pain .
Incidence and Course of Low Back Pain Episodes in the General Population
Study Design . Population -based , prospect i ve cohort . Objectives . To estimate incidence and course of severity- grade d low back pain ( LBP ) episodes in adults . Summary of Background Data . Past studies report variable estimates that do not differentiate LBP severity . Methods . An incidence cohort of 318 subjects free of LBP and a course cohort of 792 prevalent cases was formed from respondents to a mailed survey .  Incident , recurrent , persistent , aggravated , improved , and resolved episodes were defined by the Chronic Pain Question naire . The follow-up at 6 and 12 months was 74 % and 62 % , respectfully . Annual estimates were age and sex st and ardized . Results . The cumulative incidence was 18.6 % ( 95 % confidence interval [ CI ] , 14.2%–23.0 % ) . Most LBP episodes were mild . Only 1.0 % ( 95 % CI , 0.0%–2.2 % ) developed intense and 0.4 % ( 95 % CI , 0.0%–1.0 % ) developed disabling LBP . Resolution occurred in 26.8 % ( 95 % CI , 23.7%–30.0 % ) , and 40.2 % ( 95 % CI , 36.7%–43.8 % ) of episodes persisted . The severity of LBP increased for 14.2 % ( 95 % CI , 11.5%–16.8 % ) and improved for 36.1 % ( 95 % CI , 29.7%–42.2 % ) . Of those that recovered , 28.7 % ( 95 % CI , 21.2%–36.2%)had a recurrence within 6months , and 82.4 % of it was mild LBP . Younger subjects were less likely to have persistent LBP ( incidence rate ratio , 0.88 ; 95 % CI , 0.80–0.97 ) and more likely to have resolution ( incidence rate ratio , 1.26 ; 95 % CI , 1.02–1.56 ) . Conclusions . Most new and recurrent LBP episodes are mild . Less than one third of cases resolve annually , and more than 20 % recur within 6 months . LBP episodes are more recurrent and persistent in older adults
Participants believed that there were distinctions between general activity , real/fitness exercise , and medical exercise .
People participating in exercise classes and group work may be more comfortable when matched for abilities and experience .
When an intervention interferes with everyday life and appears to be ineffective or too difficult to implement , people make a reasoned decision to discontinue .
DISCUSSION People are likely to prefer and participate in exercise or training programs and activities that are design ed with consideration of their preferences , circumstances , fitness levels , and exercise experiences
OBJECTIVES The global burden of low back pain is the highest ranked condition contributing to years of living with disability .
Exercise is moderately effective , and adherence to exercise may improve if participants are engaged .
Identification of elements that enhance engagement would enable clinicians to prescribe appropriate interventions .
The review objective was to identify and synthesize qualitative empirical studies that have explored beliefs about exercise therapy of people with nonspecific chronic low back pain .