Research and News
Posts tagged ankle
Wobble board exercises can reduce ankle injuries in soccer players
Jan 18th
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Neuromuscular training has long been performed in Europe as part of sports training and injury prevention. Neuromuscular training involves progressive balance training using unstable surfaces such as Thera-Band® Stability Trainers, Stability Discs, and Balance Boards. Several studies have reported that proprioceptive exercises and training reduce injuries in athletes.
Researchers in Hungary evaluated the effects of a 20-month proprioceptive training program in 10 female handball players. Their ankle proprioception was compared to a control group of 10 competitive athletes. The program included static and dynamic balance exercises using wobble boards. At the end of 20 months, the training group had completed 780 hours of the proprioceptive exercise. Their ankle proprioception, measured by ankle joint position sense, was significantly better compared to the control group. In addition, the training group experienced a 50% reduction in injuries. Proprioceptive training progression including Thera-Band Wobble Boards can improve ankle proprioception and may decrease ankle injury rates in contact sports.
REFERENCE: Kynsburg A, Pánics G, Halasi T. Long-term neuromuscular training and ankle joint position sense. Acta Physiol Hung. 2010 Jun;97(2):183-91.
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New Thera-Band® exercise helps replicate biomechanical function of ankle
Sep 9th
Exercises for ankle sprains often include strengthening of the peroneus longus muscle, usually with Thera-Band® elastic bands or ankle weights. Based on its origin and insertion, the peroneus longus muscle is thought to be responsible for ankle eversion and plantar flexion. However, in terms of its true function, the peroneus longus is an important stabilizer of the first ray during closed-chain weight bearing, creating a rigid lever for push-off (Subotnick, 1975).
Electromyographic (EMG) evidence shows that the peroneus longus peaks in activation during the latter half of the stance phase when the weight of the body is over the forefoot in a plantar-flexed position. Despite this evidence, peroneus longus exercises are often prescribed in an open-chain against resistance during eversion movements.
In the Journal of Strength and Conditioning Research, physical therapy researchers investigated the effectiveness of more functional closed-chain exercises on activation of the peroneus longus while measuring EMG activity. They evaluated closed-chain plantar flexion (heel raises) with a 5 pound laterally-directed resistance provided by a yellow Thera-Band resistance band placed around the middle of the foot. A yellow band stretched to 200% of its resting length will produce a force of 5 pounds (Page et al. 2000). According to the authors, “The pull More >
Balance exercises for chronic ankle sprains effective
Aug 31st
Chronic ankle sprains have been attributed to poor sensorimotor control, resulting in “functional ankle instability.” First described in the 1960’s by Freeman and Wyke, functional ankle instability has been postulated to result from a lack of proprioceptive information from the ankle due to “deafferentation.” Functional ankle instability is associated with chronic ankle sprains; patients with functional ankle instability may have normal strength and ligament structure, yet continue to suffer ankles sprains. Progressive balance exercise programs have been shown effective at reducing functional instability and recurring ankle sprains. Sensorimotor training programs for ankle instability often include balance exercises that use foam pads such as Thera-Band® Stability Trainers.
Researchers at the University of Kentucky developed a progressive balance training program for patients with chronic ankle instability. The program lasted 4 weeks and focused on dynamic balance stabilization in single-leg stance. Exercises included progressions in hops and single-leg balance using foam pads and 6-pound medicine balls. The results of their first study, published in Medicine and Science in Sports and Exercise in 2008, found that their program significantly improved function and postural control in chronic ankle sprain patients. In their more recent study, 29 subjects with chronic ankle instability were randomly assigned to either an exercise group or More >
Functional rehabilitation of chronic ankle instability effective
Jul 12th
It’s been reported that athletes suffering an ankle sprains re-injure their ankle 70% to 80% of the time. This leads to chronic ankle instability or ‘functional ankle instability’. Rehabilitation for chronic ankle sprains often includes functional exercises including dynamic closed-chain activities. Thera-Band® products such as elastic resistance bands, stability trainers and balance boards are used for functional rehabilitation.
Researchers at the University of Toledo performed a systematic review of functional exercise interventions for their effectiveness. They identified 6 studies that met their criteria for the review, including 4 that used balance boards and elastic resistance strengthening. The researchers concluded that functional rehabilitation improves dynamic balance and self-reported function in patients with chronic ankle sprains. The exercise programs from the reviewed studies generally lasted 4 to 6 weeks and were performed 3 to 5 times a week. Finally, they pointed out that wobble board training in rehabilitation programs is “supported by the literature”; therefore, Thera-Band balance boards should be a standard component of chronic ankle instability rehabilitation program.
REFERENCE Webster KA, Gribble PA. Functional rehabilitation interventions for chronic ankle instability: a systematic review. J Sport Rehabil. 2010 Feb;19(1):98-114.
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Physical therapy with Thera-Band products effective after surgical repair of ankle fracture
May 4th
After surgery to repair an ankle fracture, physical therapy exercise is usually prescribed; however, no randomized, controlled studies have evaluated the effectiveness of a rehabilitation program after removing the post-operative cast. A prospective, randomized, controlled trial (RCT) was published by researchers in Sweden to evaluate a standardized, but individually-suited training program supervised by a physiotherapist.
105 patients were randomly assigned to a control group or physical therapy group after an average of 6 weeks in a plaster cast. The control group received “usual care”: advice and self-directed exercise. While 76% of subjects in the control group also attended physical therapy sessions on their own, their exercises were not the standardized program of the experimental group.
The physical therapy program began 1 week after cast removal and lasted 12 weeks, with 2 sessions per week. Patients also performed exercises at home between physical therapy visits. The neuromuscular training program consisted of range of motion (ROM) exercises, strengthening, balance training, and closed-kinetic chain exercises. Patients used Thera-Band® resistance bands for ankle strengthening exercises as well as wobble board and mini-trampoline exercises for balance training. Download the article and exercise protocol from the Academy here.
After 12 weeks, the physical therapy group showed improved results compared to the control More >
