Research and News
Stability Trainer
Thera-Band exercise program helps reduce knee pain
Jul 3rd
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Patellofemoral pain syndrome results in chronic anterior knee pain, and is often associated with delayed and reduced activation of the vastus medialis oblique (VMO) muscle. Therapeutic exercise is often prescribed to help improve the strength and onset timing of the VMO. Patellar taping is also used in managing anterior knee pain, and is often worn by the patient throughout the day.
Researchers in Turkey wanted to see if an exercise program for patients with patellofemoral pain syndrome could be effective with shorter tape application times (tape worn only during exercise sessions versus worn all day long). First, they compared the VMO muscle activation of 12 men with patellofemoral pain syndrome to 16 healthy controls. The patient group had significantly slower activation of the VMO compared to the control group, as well as significantly reduced strength and activation levels of the affected side compared to the unaffected side.
The 3 month home exercise program for patellofemoral pain syndrome used patellar taping only while exercises were performed, 3 times per day for 30 minutes per session. The progressive exercise program used Thera-Band® Exercise Bands and Stability Trainers. After the More >
Systematic review supports balance training
Jul 1st
Balance training using unstable surfaces such as Thera-Band Stability Trainers and Rocker / Wobble Boards continue to increase in popularity both in rehabilitation and sports performance. In addition, balance training has been shown to be beneficial in preventing injuries across the lifespan, from athletes to older adults.
German researchers published a systematic review of the efficacy of balance training for neuromuscular control and performance enhancement in the Journal of Athletic Training. 20 randomized clinical trials of balance training met their inclusion criteria for the review. As with many systematic reviews, the authors noted a lack of methodological quality and conflicting findings between studies. Nonetheless, they were able to make some conclusions:
- Balance training is effective at improving static postural sway and dynamic balance in both athletes and non-athletes.
- Balance exercises are recommended for postural and neuromuscular improvements, particularly for rehabilitation and preventive purposes.
- To improve strength, jumping or sports performance other interventions such as strength training are more effective than balance training.
- Longer balance training durations of 6 to 12 weeks seem more effective than shorter (4 week) durations.
The authors concluded that further research with higher methodological quality is needed to establish the efficacy and dose-response of balance training for functional performance.
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 >
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 >
Thera-Band Academy well-represented at ACSM annual meeting
Jun 6th
I attended the American College of Sports Medicine’s Annual Meeting in Denver last week. As always, there were lots of excellent scientific presentations, including several by Thera-Band Research Advisory Committee (TRAC) members from around the world. TRAC members presenting their research had their abstracts published in the Medicine and Science in Sports and Exercise supplemental issue. The topics included older adult exercise programs including the Thera-Band Exercise Station, validating exercise intensity of Thera-Band elastic resistance, and its use in patients with neck-shoulder pain. I’ve summarized their research abstracts for the blog and will be posting them over this week. Today: Japanese-American Studies; Wednesday: Danish Studies; Friday: Spanish Studies
Researchers wanted to evaluate the effectiveness of the Thera-Band® Exercise Station as part of an aerobic and resistance exercise circuit training program in Japanese older adults. They first determined that the program provided an adequate stimulus for aerobic training as participants exercised at 60% of their heart rate; they also achieved low to moderate intensity resistance training based on RPE levels (Imai et al. 2011). The researchers then randomly assigned 39 older adults to either a Thera-Band Exercise Station circuit or a non-exercising control group. They exercised for 12 weeks, 3 times per week More >
