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Exercises help reduce back pain after prolonged standing
Jun 27th
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Prolonged standing often leads to low back pain, which can lead to occupational disability. Persons with low back pain after prolonged standing often have abnormal EMG activity of the gluteus medius and trunk flexor and extensor muscles. Researchers were interested to see if persons with low back pain after prolonged standing could reduce this pain after a progressive stabilization exercise program.
20 subjects with low back pain after prolonged standing were randomly assigned to an experimental or control exercise program. The 4-week home exercise program included 18 stabilization exercises targeting the abdominal, lower back, and gluteal muscles; one of the exercises was a standing row exercise with elastic resistance. Ten subjects performed exercises 4 times per week and attended one session per week supervised by a physical therapist. The other 10 control subjects did not exercise.
Subjects completing the home exercise program had significantly less low back pain during prolonged standing compared to the non-exercising control group. An exercise program of core stabilization exercises utilizing Thera-Band® elastic resistance may benefit patients with low back pain during prolonged standing, but more research is needed.
REFERENCE Nelson-Wong More >
Power training with Thera-Band elastic resistance more effective for older adults
Jun 23rd
As we age, we lose muscle mass through a condition called “sarcopenia,” which is the age-related loss of muscle fibers. Sarcopenia can lead to decreases in strength and function in older adults, which can increase the risk for disability and injury.
Muscular power and reaction time are also important components of function and injury prevention for older adults; specifically, reduced strength of ankle dorsiflexion is associated with an increased risk of falls (Skelton et al. 2002; Whipple et al. 1987). In addition, decreased reaction time is associated with increased falls and motor vehicle accidents in older adults. Power training, which is essentially strength training performed at higher velocities, is becoming increasingly popular for older adult exercise programs. Many studies have shown that strength training exercises can increase strength and function in older adults, but few if any have examined effects of ankle power training on performance or injury prevention in older adults. In addition, few studies have directly compared elastic and isotonic resistance training programs.
Canadian researchers investigated the effects of power training with Thera-Band® exercise bands compared to machine-based resistance training for ankle dorsiflexor and plantarflexor muscles. They wanted to see if there was a difference in reaction time, movement speed, More >
Balance training improves risk factor for ACL injury
Jun 20th
Anterior cruciate ligament (ACL) tears are often detrimental to an athlete’s season. Biomechanical analysis of the lower extremity suggests that cutting maneuvers increase the load on the ACL by increasing valgus and internal rotation forces when the knee is extended. While reconstructive surgery and rehab are often successful, it’s obvious that preventing ACL injuries through training and conditioning would be beneficial.
Some controversy exists regarding the optimal method of training for preventing ACL injuries in athletes. Researchers recruited 50 Australian Rules football players and randomly assigned them to one of 4 training programs: machine weights, free weights, balance training, and machine weights plus balance training. The balance training groups performed exercises using balance boards, mini trampolines, inflatable disks, and exercise balls. Subjects were tested before and after the 12-week programs for knee loads during running and cutting maneuvers. The balance training group significantly decreased their peak valgus and internal rotation moments during the cutting maneuver, which may help reduce the risk of ACL injuries.
In contrast, the strength training groups (machine weight and free weight) tended to increase their knee loads that place stress on the ACL. The authors recommend that athletes perform balance training to reduce the risk of ACL injury. This More >
Researchers show Thera-Band Tubing exercise decreases pain in workers
Jun 17th
Previously, Danish researchers reported that 2 minutes of daily Thera-Band® tubing shoulder lateral raise exercise significantly reduced neck and shoulder pain over 10 weeks. As part of their randomized controlled trial, Dr. Lars L. Anderson and his colleagues at the National Research Center for the Working Environment in Copenhagen wanted to know the effects of the exercise on workers with headaches. Click here to see a video of the exercise. 198 office workers with chronic neck/shoulder pain were randomly assigned to either a 2 or 12-minute per day, 5 day a week exercise program, or a control group. After 10 weeks, both exercise groups had significantly fewer headaches than the control group – with a frequency reduction of 43%-56%. Intensity and duration of headaches remained unchanged. As with their previous study, 2 minutes was as effective as 12 minutes of exercise per day.
Dr Andersen stated, “The elastic resistance exercise helps strengthen the muscles around the neck and shoulder that may improve their work capacity, thus making the muscles more efficient and less painful.” Dr. Andersen and his colleagues published their results in a free download in the Scandinavian Journal of Work and Environmental Health.
Are unstable surfaces appropriate for rehabilitation of low back pain patients?
Jun 15th
Unstable surfaces have been suggested to be used in training trunk and core stability. However, the use of unstable surfaces in training has come under question lately with research suggesting lower levels of activation compared to stable surfaces (Behm et al., 2010). The instability requires additional muscle activation to maintain stability. Therapists sometimes prescribe exercises using unstable surfaces such as Thera-Band® Stability Trainers and Stability Discs for patients with low back pain.
Researchers measured trunk muscle activity, lumbar range of motion, and balance during 5 common lumbar stabilization exercises performed on stable and unstable surfaces using an inflatable disk: quadruped, side bridge, modified push-up, squat, and shoulder flexion.
They found that patients with low back pain had adaptive recruitment patterns while maintaining similar levels of balance and lumbar range of motion compared to healthy subjects. There was little increase in electromyographic (EMG) activation among low back pain patients between the stable and unstable surface, and some exercises actually increased lumbar range of motion on unstable surfaces, which is not desirable during lumbar stabilization exercise. Based on these findings, the researchers questioned the need and benefit for using labile surfaces in patients with low back pain.
It’s important to note that the researchers only investigated More >
