Blood flow restriction (BFR) therapy/training is one of the newer and more exciting techniques being used in the sports medicine field. I received training with Owens Recovery Science and have been utilizing personalized blood flow restriction (PBFR) therapy in my clinic since November 2017 using the Delfi personalized tourniquet system (PTS).
What exactly is BFR?
It is the application of a specialized tourniquet system to the proximal arm or leg, which is inflated to a personalized and specific pressure to reduce blood flow to an exercising extremity. For the lower extremity, the occlusion pressure is 80%, whereas the upper extremity pressure is usually set at 50%.
The application is brief and intermittent, usually lasting about 6 minutes per exercise. For most clients, a total of 3-4 exercises are used leading to 24-30 minutes based on the specific exercises prescribed. Typically, to increase strength and hypertrophy a person would need to lift a significant amount of weight (greater than or equal to 60% of a 1 repetition maximum). With PBFR you can create significant strength and hypertrophy gains with loads as low as 20% 1RM.
We utilize the Delfi tourniquets as suggested with the Owens training course. You can see the PTS and tourniquets below:
What is the science behind this training tool?
The landmark study by Takarada published in 2000 revealed that significant hypertrophy gains are seen with occlusion and the use of lighter training loads. There is an increase in muscle protein synthesis as well as growth hormone secretion. Below you find some links to abstracts from Takarada’s work:
https://www.ncbi.nlm.nih.gov/pubmed/10846023
https://www.ncbi.nlm.nih.gov/pubmed/10642363
https://www.ncbi.nlm.nih.gov/pubmed/11128848
In addition to hypertrophy, there also appears to be an application for preventing disuse atrophy simply using occlusion. This may prove very beneficial for clients who are non-weightbearing after an injury or surgery, yet not able to perform much resistance training.
I just returned from the Sports Physical Therapy Section’s annual conference in Las Vegas. There were plenty of great presentations from various industry leaders. I thought I would take a moment and summarize a few key points from the conference that may be helpful to clinicians and consumers alike.
The conference theme was the power of innovation. Hot topics covered were blood flow restriction therapy, cupping, dry needling, eccentric loading for tendiopathy, weighted ball training, and kinesiotaping and laser therapy to name a few. Below are some takeaways worth mentioning:
Shoulder impingement is a common problem for many clients. Specifically, some clients will suffer from internal impingement as a result of a significant loss of internal rotation range of motion, also known as GIRD (glenohumeral internal rotation deficit). This has been widely researched in baseball players, and it is a common issue for overhead athletes. Of note, it can also impact those doing repetitive overhead lifts.
It is common to see asymmetry in internal range of motion for the dominant and non-dominant arms. For those clients who have a total shoulder motion asymmetry greater than 5 degrees, it becomes more important to resolve internal range of motion deficits based on the current literature. In my previous post, I revealed how to improve soft tissue mobility. In this post, I will review the sleeper stretch and cross body stretch to improve posterior shoulder mobility while increasing internal rotation.
The video below from my column ‘Functionally Fit’ for PFP Magazine will demonstrate how to do these stretches.
Tightness and trigger points in the infraspinatus are common and create lots of dysfunction in the shoulder. You may also see tightness in the teres minor. Problems may include a rounded shoulder, chest tightness, a rotated scapula causing fatigue in periscapular muscles, trap tightness and even anterior compression of the humerus.
It is essential that any trigger points be resolved prior to stretching to make a lasting impact on the soft tissue mobility. The video below reveals how to use a trigger point ball to reduce soft tissue restriction in the posterior shoulder that may impede proper mobility and mechanics. Tightness may predispose overhead athletes and those doing resistance training to increased risk for rotator cuff and/or labral injuries.
Spring training has begun, and youth baseball players all over the country are starting to practice and prepare for their upcoming seasons. My very own 14 y/o son has started his 8th grade season, while having been working with his travel team on the weekends since mid December.
As a physical therapist, former player, father, and assistant coach on his 14U team, my first concern is always the health of a player. I see several baseball players in my sports medicine practice ranging in age from 9 year olds to MLB platers. Diagnoses include internal impingement, SLAP tears, little league elbow/shoulder, OCD, UCL sprains, rotator cuff tendinitis, instability, fractures and scapular dyskinesia.
One of the hardest things to do in my profession is get inside the head of a young athlete. Many will refrain from mentioning pain for fear of letting down a parent or coach, or out of concern for losing playing time. Society has become too focused on early specialization and winning from an early age. In addition, “travel baseball” has been somewhat diluted and water down by lots of dads who want their sons to play year-round. I often see kids being abused on terms of too little rest or improper recovery after they pitch and catch.
The biggest, most athletic and hardest throwing kids undergo the most strain as they are asked to shoulder the load at pitcher, catcher and shortstop early on. Many coaches are counting innings in tourneys and not pitches based on tournament guidelines. Too many kids are pitching on consecutive days without proper rest all in an attempt to win meaning less tournaments at a young age. Fortunately, we are making progress in the sports medicine world thanks to the efforts of Dr. James Andrews and others.
High schools are adopting pitch count regulations this year, and MLB along with Dr. Andrews has developed their site, www.pitchsmart.org, to spread education about injury prevention in youth pitchers. Dr. Christopher Ahmad is on the advisory committee for PitchSmart.org, and he is also the lead author on a new paper detailing an injury assessment tool for young baseball players, The Youth Throwing Score.