040717 Vibration Training

040717 Vibration Training

Vibration loading has been successfully used in the astronaut program to help prevent bone loss and to enhance recovery from sprains and tendonitis in normal and athletic individuals. Recent research has centered on the use of whole body vibrations to increase bone integrity, balance and muscular strength.

This research has demonstrated that whole body vibrations in the 25-40 Hz ranges improves explosive power in those who are physically active. Additional findings have shown this type of training to be beneficial to older adults with balance problems and for increased bone formation in postmenopausal women.

How it works: A platform generates vibration which is then transferred to the body and the muscles, causing them to contract in a reflex. This also stimulates circulation tremendously. Tendons are stretched, and even deep-lying muscles such as the pelvic floor muscles, the muscles around the spinal column and in the face are reinforced by this reflex activation. Without using additional weights, and without having to put any additional strain on the body, the experts at Power-Plate have developed several training schedules enabling everyone to improve their looks, health and general well-being. Anyone can use the Power-Plate, whether top athletes, untrained, elderly or overweight.

Technical information supplied by power plate usa. I can’t seem to get the link to work so am removing it. If you want to look at the machine just cut and paste the name.

Contraindications

This list of contraindications is not absolute. If one of the conditions listed below applies to you we strongly advise that you consult with your physician before using the Power Plate.

  • Pregnancy
    Acute thrombosis
    Serious cardiovascular disease
    Pacemaker
    Recent wounds from an operation or surgery
    Hip and knee implants
    Acute hernia, discopathy, spondylolysis
    Severe diabetes
    Epilepsy
    Recent infections
    Severe migraine
    Tumors
    Recently placed IUD’s, metal pins, or plates

Research is still being conducted on the effects of vibration on certain medical conditions. This list may soon be reduced. Practical experience indicates that there are a number of cases where it is beneficial to integrate Power Plate training into ones treatment. This should always be done under the supervision of a doctor, physician or trained professional.

200617 Bone Health Exercise Recommendations

200617 Bone Health Exercise Recommendations

The mode of exercise should be a combination of weight bearing and endurance activities such as stair climbing, tennis, jogging and jumping. Add in regular sessions of resistance training to round out the weeks program.

The intensity level of all these exertions has to be in the moderate to high ranges in order to engage the bone loading force mechanisms leading to high quality rebuilding of these tissues.

The resistance training level of intensity will be in the 80-85% areas for the majority of the selected movements. The selected exercises are those that involve the major muscle groups that focus on the shoulders, chest, upper back and the legs front and rear. Repetitions will be in the 6-8 range for two to four sets with two to three minutes rest between sets.

These exercise sessions need to be at least as frequent as 3-5 times per week for the weight bearing endurance activities and 2-3 times per week for the resistance ones in order to elicit a positive effect on the skeletal structure.

Once these regimes are in place the desired time spent on each one per session is 30-80 minutes per day. This will be a combination of both types of exercise and not just one of the two recommended modes.

060617 Mechanical load consists of the following:

060617 Mechanical load consists of the following:

Magnitude of force

Magnitude of the load density or the intensity of the load will generally be above eighty to ninety percent one to ten repetition maximum in order to see improvements in the tissue response.

Speed of force development

The rate or speed of loading means how fast the force is being applied to move the load in a concentric muscle contraction (force applied against a weight with the muscles shortening). Think speed during the lift.

The direction of forces

Varying the direction and pattern of movement will stress the bone and the attaching musculature. Full range of motion in all exercises ensures to a certain extent that the forces are applied as required.

Volume of force applied

The first three mentioned above are primarily responsible for bone mineral improvements. Typically the repetitions do not need to exceed thirty to thirty five to see improvements IF the load is within the correct intensity zone (80%-90% 1-10RM).

Exercise prescriptions for bone growth stimulation*

  1. Volume 10 reps for 3-6 sets
    2. Load 1-10 RM at 80%-90%
    3. Rest 1-4 minutes between sets
    4. Variation Undulating periodization patterns
    5. Exercise selection Structural, multi-joint, large muscle groups

    *Essentials of Strength Training and Conditioning
    Baechle, T. R., Earle, R.W. Human Kinetics 2001

Summary:

The greater the magnitude or intensity, the higher and faster the power output, and the direction of force all contribute to the successful laying down of new bone growth.

300517 The stimulus for new bone formations.

300517 The stimulus for new bone formations.

Minimal essential strain (MES) refers to the threshold amount of stress applied to the structure which is necessary to elicit growth of new bone material. A force exceeding MES is required to signal the osteoblasts to move toward the periosteum and begin this transformation. MES is thought to be 1/10 of the breaking force needed to fracture the bone. Training effects have a positive relationship to bone density just as sedentary living habits play a role in the loss of bone density.

Training to increase bone formation

Programs designed to stimulate bone growth, also known as bone mineral density (BMS), will incorporate the following characteristics:

  1. Specificity of loading
    2. Proper exercise selection
    3. Progressive overload
    4. Variation

Specificity of loading will see the exercise patterns emphasizing specific areas in need of assistance. New or unusual forces in varying angles of stress will enable your bones to adapt to the greater intensities. Military presses, bench presses, upright shoulder shrugs, push ups, chin ups, plus other similar exercises would help develop stronger upper body bones. Lower body exercises selections would be along the lines of these types of movement patterns: squats, calf raises, dead lifts, and straight leg dead lifts.

Exercise selection promotes osteogenic stimuli (factors that stimulate new bone formation) and will exhibit these characteristics: Compound exercise muscle movements consisting of multi joint, structural loading and varying force vectors. Such exercises are the squat, dead lift, military press and the bench press along with the Olympic style moves.

Progressive overload

Greater than normal loads force the body to adapt in a positive manner regarding new bone formation. This response is greater if the load changes are dramatic and repetitive in nature. Younger bones may be more receptive to osteogenic changes in the load variance than older bones.

Variations of exercise selections

The body adapts quickly to imposed loads per the SAID (Specific Adaptation to Imposed Loads) principle. In order to prevent accommodation the exercises need to be varied on a periodic basis. There are many individual differences in the same exercise. As an example the squat has at least seventy variations! And these variations do not include any machine versions.

230517 Adaptation of Bone to Exercise

230517 Adaptation of Bone to Exercise

By Danny M. O’Dell, MA.CSCS*D

Background information-briefly stated

Bone is considered a connective tissue that when stressed, deforms and adapts as a result of the load. To meet the strain imposed upon the external structure caused by the bending, compressive, torsional loads and the muscular contractions at the tendinous insertion point’s osteoblasts migrate to the surface of the bone.

At the point of the strain, immediate modeling of the bone begins. Proteins form a matrix between the bone cells. This causes the bone to become denser due to the calcification process occurring during the growth response to the load.

The new growth occurs on the outside of the bone to allow the manufacture of new cells to continue in the limited space with in the bone itself. This outer layer is commonly known as the periosteum.

Adaptations take place at different rates in the axial skeleton (skull/cranium, vertebral, ribs, and sternum) and the appendicular skeleton (shoulder, hips, pelvis and the long bones of the upper and lower body-essentially the arms and legs). This is due to the differences in the bone types- trabecular (spongy) and cortical (compact) bone.

180417 Osteoporosis: The risk factors

180417 Osteoporosis: The risk factors

Some risk factors are under your control whereas others are not. Here is a brief list for your consideration.

1. Gender-of the ten million people with osteoporosis in the United States 80% of these are women. Particularly affected, and at increased risk for the disease, are Caucasian and Asian women.

2. As you grow older your risk increases.

3. Your diet and health history habits make contributions to the disease. Drinking alcohol and smoking, along with a lack of calcium and vitamin D and exercise hasten the onset of this bone weakening condition.

4. Other health conditions such as hyperthyroidism, chronic kidney disease and rheumatoid arthritis seem to predispose a person to osteoporosis.

5. Medications such as thyroid medication and oral steroids can damage the bones.

More to follow.

241016 It is never too late to strength train

241016 It is never too late to strength train

There are numerous studies showing that people who do resistance training have significantly improved their muscle strength and performance. These changes show up in as little as two months. This held true even with the frail and over age 80 population. Not only does resistance training improve strength it can also help prevent and treat sarcopenia.

According to an analysis conducted in 2010 by the Aging and Research Reviews, strenuous, intense workouts are the most effective. You can bet they did not use soup cans in these intense workouts. However, if you are seriously out of condition you probably will have to start out gradually. Find a qualified strength trainer, one with good credentials from a nationally recognized association, and get started.

In order to help prevent or treat sarcopenia, strength train regularly and make sure that you are getting enough protein and your system on a daily basis.

A basic strength program stressing the major muscle groups, consisting of three sets of eight repetitions, performed 2 to 3 times a week will show increases in strength and functionality within a short period. These targeted muscle groups should involve the shoulders, arms, upper back, chest, abdominals, lower back, the quads and hamstrings of the legs and the calves.

Begin with a warm-up with some sort of an aerobic exercise to the point where you are breathing heavier, your pulse is going faster and you have a slight sweat. Now it is time to start lifting.

Begin with the weight that you can handle 10 to 12 times. In over the course of a week or so add weight until the last two repetitions of the set are difficult. Rest 2 minutes and repeat the exercise set again. If you’re able to complete three sets of eight repetitions with a specific weight then that weight is to light and more needs to be added to the bar.

On the days that you are not strength training, do some sort of aerobic exercise for 20 to 30 minutes. Keep track of what you’re doing. You are going to notice improvements in your strength level and in your ability to move a lot easier in your daily life.