Category Archives for "dynamic"

What is PNF Stretching?

Proprioceptive Neuromuscular Facilitation, also known as PNF stretching, is a technique employed to improve muscle elasticity and range of motion. PNF is frequently used by therapists to restore functional range of motion and increase strength capabilities in patients who have sustained soft tissue damage or in post-surgery rehabilitation. It is found that consistent performance of PNF stretching and PNF stretching post-exercise may increase athletic performance by increasing range of motion. It is evident in literature that there are two types of techniques that can be utilized under PNF stretching.

The contract-relax method (CR) includes lengthening the targeted muscle and holding it in that position while the targeted muscle is contracted to its maximum isometrically for a period of time. A short period of relaxation and a passive stretch of the targeted muscle follows this initial contraction phase. The contract-relax-antagonist-contract method (CRAC) begins with the same procedure as the CR method. However, it takes a further step by contracting the antagonist muscle to the targeted muscle instead of passively stretching the targeted muscle.

How to Properly Perform a PNF Stretch:

Contract-Relax (CR) Method:

1) Stretch targeted muscle to the limit of normal range of motion. Contract the targeted muscle group for 5 – 10 seconds while a partner or immovable object such as a band applies sufficient resistance to inhibit movement of the muscle group.

2) Relax the targeted muscle group for 3 – 5 seconds.

3) Have your partner passively stretch the targeted muscle group by applying a controlled, deeper stretch for about 20 – 30 seconds into a greater range of motion.

4) Relax the muscle for approximately 30 seconds before repeating the above process 2 or 3 more times.

Contract-Relax-Antagonist-Contract (CRAC) Method:

1) Stretch targeted muscle to the limit of normal range of motion. Contract the targeted muscle group for 5 – 10 seconds while a partner or immovable object such as a band applies sufficient resistance to inhibit movement of the muscle group.

2) Relax the targeted muscle group for 3 – 5 seconds.

3) Contract the antagonist muscle (opposite to targeted muscle group) for 5 – 10 seconds.

4) After brief period of relaxation, have your partner passively stretch the targeted muscle group by applying a controlled, deeper stretch for about 20 – 30 seconds into a greater range of motion.

5) Relax the muscle for approximately 30 seconds before repeating the above process 2 or 3 more times.

Example of PNF Stretching for the Lower Body: 

Begin by lying on your back with one leg on the floor and the other leg extended and stretched into the limit of your normal range of motion. 

Contract the hamstring of the stretched leg and have your partner resist leg movement. 

Relax the hamstrings then have your partner passively stretch the leg past its normal range of movement.
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Knee Injury Prevention Guideline

Knee and ACL injuries commonly occur in sports such as soccer, ultimate, and rugby. Athletes may require months to even more than a year to recover and to be able to return to play. There is a vast amount of literature describing a number of ways on how to prevent knee and ACL injuries. However, the most effective prevention strategies are the ones that are based on scientific evidence, a thorough assessment made by the coach and medical team, and the individual’s input.

Strongly suggested by research, programs most beneficial in preventing injuries consist of flexibility drills, running drills, strength training, core strength, and plyometrics. Each session should last approximately 20 minutes with a goal of exercising a minimum of 30 minutes per week. Programs should be implemented through out the year from preseason to regular season. Although most research studies focused on athletes between the ages of 12 and 25 years, these programs may benefit older individuals.

Recommended Exercises

Dynamic Stretches:

1) Toe Taps: Standing tall, kick one leg up and touch your toes to the palm of your hand. Alternate legs. Repeat 10 times on each side.

2) Reverse Lunge & Hop: Step back with one leg until you get into a lunge position. Swing the back leg forward until your knee is bent at a right angle by your chest. Maintain an upright body and repeat on the other side. Perform 10 repetitions on each side.

3) Calf Stretch: Standing tall on one leg, extend the other leg forward with only the heel in contact with the floor. Gently bend forward at the hips and feel a stretch along the front leg. Hold for 30 seconds and repeat on other leg. Perform 3 times on each side.

Running Drills: 

Perform running drills such as forward and backward running or bounding. Watch Physiotherapist Claire lead two athletes through a series of running and other dynamic drills below.

Strength Training: 

Two-legged Squat:

Starting with tall posture, engage your core below the belly button by drawing the inner core muscles towards the spine without arching the low back. With arms in a ready position do a two legged squat with your body weight distributed equally over both feet. Don’t go any lower than a ninety degree bend in the knees, keeping your knees in alignment with your second toe and over your heels as much as possible. Hold for a good long second and then straighten back up with your butt muscles to the start. Do three sets of fifteen repetitions daily.

Advanced Superman Deadlifts:

Start by holding on to a 5 pound dumbbell on the same side as the leg that you are going to extend back on. With nice tall posture, engage your core below the belly button. Keeping your spine flat, bend forward at the hips while you extend the leg back and reaching forward with the opposite arm and holding onto the 5 pound dumbbell with the other hand. Remember to keep that hip down on the side you’re extending the leg back on. Do 3 sets, 10 repetitions, holding for 3 seconds.

Split Squat Jumps:

Start with a nice tall posture and your inner core pulled in to keep your low back flat. Engage your back leg into extension by pushing the back forefoot into a solid bench or a chair supported against a wall. With your arms in the ready position bend the knee to 90 degrees by bringing the butt down and then jump back up. Keep your thigh strong by preventing the knee from buckling inwards. Keep your knee over the heel and don’t let it go over your toes. Do 3 sets of 10 on each side.

Core Strength Exercises:

1) Planks: Begin on the floor resting on your forearms and knees. Extend both legs until your whole body forms a straight line from the top of your head to your feet. Engage the core and glute muscles. Begin by holding this position for 30 seconds. Progress to 60 seconds or more to increase difficulty.

2) Glute Bridge: Begin on the floor with your back flat, legs bent at approximately 90 degrees and both feet on the ground. Place both arms to the side then engage your core as you lift your hips up. Hold for a second or two at the top as you squeeze your glute muscles.

Plyometrics

1) Box Jumps: Use a box that is around your knee height or higher. Stand in front of the box with your feet shoulder-width apart. Bend slightly downwards, swing your arms back, then swing them forward and explode up off the ground onto the box. Repeat 10 times.

2) Lateral Skater Jumps: Begin by standing on one leg and bend the other leg. Jump sidewards and land on the leg that was bent. Then switch sides. Repeat 10 on each side.

References:
https://www.ufvcascades.ca/2018/01/cascades-mens-soccer-program-to-host-id-camp/
https://www.jospt.org/doi/full/10.2519/jospt.2018.0509
InSync Physiotherapy is a multi-award winning health clinic helping you in Sports Injuries, Physiotherapy, Exercise Rehabilitation, Massage Therapy, Acupuncture & IMS.

How to Warm Up For a Bigger Bench Press

The bench press is one of the key complex exercises to build upper body strength and mass. It involves the pectoralis major, triceps brachii, anterior deltoids, traps, back, and glute muscles. Check out the following blog post on how to properly perform the bench press: https://insyncphysio.com/strength-training-for-dragon-boat-paddlers/


Warm up prior to any exercise is key as it raises the heart rate and circulation of blood to the muscles to prepare for an increase in activity. Complete the following steps before performing light reps on the bench press to warm up effectively for a bigger bench press:

1) Self-Myofascial Release: 

Foam rolling decreases tissue density and muscle viscosity, while increasing blood flow into the muscles. Apply moderate pressure to the chest, lats, and tricep muscles. Do not roll over joints. Pause on any tender spots for several seconds. 

2) Dynamic Warmup:

a. Side Lying Windmills: Lie down with your back on the floor with one leg extended and the other leg crossed over your body with the knee bent at a 90 degree angle. Extend both arms in the same direction as the knee that is pointed to the side. With the top arm, slowly raise it in a circular motion over your chest to reach the opposite side. Then bring the arm back to meet the other arm. Do not move either legs through out the motion. Repeat 10 times on each side.


b. 4-Point Clock Reaches: Loop a closed elastic band with mild resistance around your arms above your wrists. Kneeling on the ground, keep your spine in neutral posture with your inner core muscles engaged. Imagine there is clock face numbered 9 to 3 O’clock on the ground in front of you. Begin by reaching the right hand to 12 O’clock and then back to the start position. Continue to 1 O’clock, 2 O’clock, 3 O’clock and then backwards up to 12 O’clock again. Repeat 5 times on each side.


c. External Rotation: Position your elbow by your side, shoulders relaxed and your posture in spine neutral. Holding on to a resistance band use your other hand to help it out to the end range of external rotation. The opposite hand is doing all the work pushing the band outward that is being held by your other hand. Then let the hand holding the band slowly return to the start position. Repeat 10 times on each side.

d. Push-ups: Start in a plank position with your hands shoulder-width apart, then lower your body downwards until your chest nearly touches the floor. Keep your elbows tucked in and engage the core to keep a neutral spine. Bring your body back up by pushing upwards with your arms. Repeat 5-10 times.

3) Central Nervous System (CNS) Activation

a. Chest Throws: Stand perpendicular to a wall with feet shoulder-width apart. Holding a medicine ball level to your chest, use the momentum provided by your upper body, throw the ball, and catch it when it bounces or is tossed back to you. Repeat 10 times. 


b. Ball slams: Stand shoulder-width apart, raise a medicine ball above your head. Using the momentum from your whole body, throw the ball downwards towards the floor. Repeat 10 times. 

InSync Physiotherapy is a multi-award winning health clinic helping you in Sports Injuries, Physiotherapy, Exercise Rehabilitation, Massage Therapy, Acupuncture & IMS.