Hello and welcome to this week’s edition of HealthBeat, Chiropractic OnLine Today’s Health, News and Informational Podcast.
In this week’s news: We’ll Be Looking At –
- Muscle Mass Predicts Longevity in Older Adults
- And Finally, a Story about Nonoperative Management of Discogenic Back Pain
For HealthBeat, This is Dr. Todd Eglow!
Welcome to HealthBeat Podcast #470 recorded August 1, 2014.
HealthBeat is Chiropractic OnLine Today’s radio program, providing current news and commentary about Chiropractic and Health.
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Muscle Mass Predicts Longevity in Older Adults
The association of obesity (as defined by high body-mass index [BMI]) with risk for premature death in older adults has been inconsistent, and some studies suggest that mortality might be lower in those who are obese than in those who are not.
Notably, BMI incorporates both fat and muscle mass, which have different metabolic effects. To determine whether greater muscle mass is associated with lower all-cause mortality, researchers examined data collected between 1988 and 1994 on 3659 U.S. adults who were not underweight and who were alive ≥2 years after the start of the study.
Muscle mass was measured using bioelectrical impedance.
After adjusting for confounders, all-cause mortality was significantly lower among people in the highest quartile of muscle mass relative to those in the lowest quartile. In contrast, BMI was not associated significantly with all-cause mortality.
This study showed a strong correlation between higher muscle mass and longevity among older adults. It also suggests that BMI (which doesn’t distinguish between fat and muscle mass) is an inadequate predictor of early mortality. However, this study does not tell us whether interventions that increase muscle mass will lengthen survival in older adults.
Surf to our Show Notes for Links – http://www.jwatch.org/na35124/2014/07/15/muscle-mass-predicts-longevity-older-adults
Nonoperative Management of Discogenic Back Pain: A Systematic Review
A systematic evaluation of the literature recently published in the journal Spine, was performed to investigate current nonoperative management of the treatment of discogenic low back pain.
Back pain is a major health care concern with up to 39% being discogenic in origin according to one study. Nonoperative therapy is likely to be the initial treatment strategy for discogenic low back pain.
The 11 randomized controlled trials (RCTs) investigated included traction therapy, injections, and ablative techniques. Results from 5 RCTs investigating methylene blue injection, steroid injection, ramus communicans ablation, intradiscal electrothermal therapy, and biacuplasty favored intervention over sham therapy.
However, results from the study on methylene blue injections have not been replicated in other RCTs. Evaluation of the selection criteria used in the studies on ramus communicans ablation and intradiscal biacuplasty and a stratified analysis of results from the RCTs on intradiscal electrothermal therapy casts doubt on whether the conclusions from these RCTs can be applied to the general patient population with discogenic pain.
The study concluded that there are few high-quality studies evaluating nonoperative treatments for reducing discogenic low back pain. Although conclusions from several studies favor intervention over sham, it is unclear whether these interventions confer stable long-term benefit.
There is some promise in newer modalities such as biacuplasty; however, more inclusive studies need to be performed.
Surf to our Show Notes for Links – http://journals.lww.com/spinejournal/Abstract/2014/07150/Nonoperative_Management_of_Discogenic_Back_Pain__A.18.aspx
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For Chiropractic OnLine Today’s HealthBeat, This has been Dr. Todd Eglow.