Progressive Resistance Torso Rotation Strength Training Case
QUESTIONS
i) Is anyone else trying progressive resistance torso rotation strength training? I would like to compare notes (positive & negative) and exchange research articles on related subjects.
ii) Will altering the seat height ½" to ¾" above or below current seat height distribute the intensity of the workout? (3 workouts per week = a possibility of up to 3 seat heights) I ask this question because her strength is not equal at the above referenced seat height variations. TRIED THIS, NO SUBSTANTIVE CHANGES TO PRIMARY CURVE NOTED ON X-RAYS. (Compensatory curve reduced in size.)
EQUIPMENT
We are using the MedX CTR and BackStrong VARC based on Mooney's initial research. We purchased both units, but then had to wait several years for our daughter to "grow into" the MedX at age 11. The length of her femur or lack thereof, is what kept her from safely using the leg restraint system.
New Info.: On January 1, 2013, MedX provided several modifications that allow the CTR to be used by most 9–11 yro if you add a footrest extension. They later added a notched seat that allows users with even shorter femurs to use the equipment. IMPORTANT: The modifications are not made for the older "overhead" MedX CTR versions.
PT
Note: Most research states the test subjects completed the exercises 2x per week until reaching a plateau & then reduced the workout to 1x per week. Initial research by McIntire suggests these PT benefits may wear off in 8-12 months if the workout is stopped altogether.
My daughter works out 3x per week as follows:
A) 10-15 minute walk or bike ride (hula-hoop on rainy days) to warm up
B) 20 reps on the VARC (see #1 DETAILS below to see how she progresses)
C) 20 reps Left & Right on the MedX (see #2 DETAILS below to see how she progresses)
CC) Added 2nd seat height (higher), alternating between the two every other workout
CCC) Added 10 eccentric reps Left & Right on MedX
CCCC) Added final seat height (lower), alternating between the three every week
D) Spirometer reading (best of 3 readings is recorded)
E) Large ice pack for back 15 minutes (still no back pain, but will reduce to 2x per week if it occurs)
CURVE & PLAN
Based on what little research I can find on the subject, we do not expect the PT to reduce her curvature; rather, we are hoping it will "hold" her curve. She has curves that made some frightening leaps--the last one BEFORE she was able to fit into the machine was an increase of 12 degrees (primary right thoracic) & 17 degrees (compensatory left lumbar) between x-rays. Her ortho said the PT would not do any good, but agreed that at least she would be in better health for the surgery he was anticipating. We began PT in February 2011. It is too soon to say if it will hold the curve for 5 years, but her initial readings show she is holding steady during a growth spurt.
33T & 27L on 02-10-11
32T & 23L on 06-16-11
34T & 20L on 10-10-11
31T & 25L on 04-16-12
31T & 28L on 10-15-12
31T & 30L on 04-11-13 Betz & Braun read x-rays (ended PT due to an unrelated accident)
31T & 30L on 10-13-14 Betz & Braun read x-rays
31T & 30L on 11-xx-15 Betz & Braun read x-rays--T/ primary curve bent out nicely!
34/5T & 30/2L on 08-xx-16 Newton (Newton read prior 3 x-rays slightly higher than Betz & Braun)
Maturation Levels
2010 R=0, T=1
2011 R=0, T=2 Began PT
2012 R=?, T=3 Continue PT
2013 R=4, T=3-4 End PT
2014 R=4, T=4
2015 R=5, T=5
2016 R=5, T=5
FYI: Her forward head thrust is gone, her spirometer readings are now above normal, she is less tired, & because her core strength is improved her posture is better & she is more comfortable while sitting, standing, & walking.
Our plan is to continue her PT until she is 16ish/ bone maturation occurs. Then, we will drop to 1x or 2x per week for another year. I don't know what will happen in the long run, but she likes that we made our plan together and that we can make changes based on what we see on the x-rays. In the meantime, her quality of life is great.
--Due to an accident, she stopped PT at roughly 26 months.
DETAILS
(This is NOT a suggestion that anyone else should try this workout, I am just telling you what she is doing. Many workouts can be dangerous if a child has anything else going on, so I always check with her ortho to R/O the possibilities of injuries before starting any new exercises!)
PROTOCOL PROGRESSION
BackStrong VARC (Variable Angle Roman Chair)
1) One set of 15-25 to fatigue on BackStrong (20 in a perfect world)
---Turn feet "in" (difficult to maintain)
---Back arch up, NOT flat back up (she loves to swim & calls the head movement a mermaid dip)
---We started at 75 degrees, hands behind back & continued this position until able to do 20
---We stayed at 75°, hands cross sternum & continued this position until able to do 20
---We stayed at 75°, genie arm cross & continued this position until able to do 20
---We stayed at 75°, fingers lightly behind ears & continued this position until able to do 20
---Then, we moved to 60°, 45°, 30°, 15°, & 0° and repeating the process
MedX Core Torso Rotation--(Unit fits 4’10” to 7’11” MALE, but not a 4’9 & ¾” female)
2) One set of 15-25 each direction to fatigue (20 in a perfect world)
Starting weight: 1/3 of body weight OR lift maximum weight and use 50 percent of that amount
ROM (range of motion) setting dependent on ability (#2 seems to work best)
Doctor suggested she increase weight in increments of 5% of current weight, but we increased as smaller percentages.
When she gets to 20 reps per side, then we are supposed to increase weight--not repetitions
Studies discuss exercising 2x per week (research suggests that for this group of muscles 2x - 3x per week provides maximum benefit, but is more likely to cause back pain & then the user will quit the PT)
Note: Conversations with clinics & gyms in the USA suggest 1x per week may be sufficient to achieve positive results. (No definition of “positive” results provided.) They stated they would prefer 2x per week, at least to get the weight lifted “up,” but acknowledged the results are pretty similar. This note is based on telephone conversations, nothing in writing, nothing published.
My Note Reply: Per my records, there was no change in results at the beginning of my daughter’s workout, low weight lifted=no increase/ decrease in curve AND later when a higher weight was lifted=no increase/decrease in curve.
Ongoing workout through puberty (No long term study, but there are some suggestions to be found in various articles that PT needs to be continued until toward the end of a Risser 4 or the beginning of a Risser level of 5 is reached/ bone maturation.
PLATEAU
When she plateaus we are considering the following for the MedX:
• She may add a 2-4 second count hold during full extension; (HAD BACK PAIN)
• Can change the ROM setting; (REVERTED TO #2 & STAYED THERE, NO CHANGE SEEN)
• Add minor seat height changes; (ONLY CHANGE SEEN WAS IN COMPENSATORY CURVE)
• Increase the weight and change angle of arms to 90°; (NO CHANGE SEEN)
• Reduce the frequency of the workout to 2x per week; (NO CHANGE SEEN)
• Consider eccentric workout. (HAD BACK PAIN)
The only ideas we have for the BackStrong VARC when she plateaus is to use an asymmetrical position. (SHE HAD A SMOOTH BACK WHEN USING ASYMMETRICAL POSTION IN THE ROMAN CHAIR—NO CHANGE SEEN ON NEXT X-RAY)
WORKOUT PROTOCOL
The workout she is doing is similar, but not the same, as the Mooney study. (20x BackStrong & 20x MedX portions are the same)
The McIntire protocol is different. They began their Warm up with a specified walk & workout on the MedX, move to Preparation/ Training on MedX, and end with a Burn-out on MedX.
PLEASE SHARE!
I don't know if this is written clearly. I am sure you see I do not have a background in biology or science. If you are trying something similar, please consider sharing your workout and results. I would love to be able to compare notes and exchange research articles on related subjects.
Thanks!
A Mom
QUESTIONS
i) Is anyone else trying progressive resistance torso rotation strength training? I would like to compare notes (positive & negative) and exchange research articles on related subjects.
ii) Will altering the seat height ½" to ¾" above or below current seat height distribute the intensity of the workout? (3 workouts per week = a possibility of up to 3 seat heights) I ask this question because her strength is not equal at the above referenced seat height variations. TRIED THIS, NO SUBSTANTIVE CHANGES TO PRIMARY CURVE NOTED ON X-RAYS. (Compensatory curve reduced in size.)
EQUIPMENT
We are using the MedX CTR and BackStrong VARC based on Mooney's initial research. We purchased both units, but then had to wait several years for our daughter to "grow into" the MedX at age 11. The length of her femur or lack thereof, is what kept her from safely using the leg restraint system.
New Info.: On January 1, 2013, MedX provided several modifications that allow the CTR to be used by most 9–11 yro if you add a footrest extension. They later added a notched seat that allows users with even shorter femurs to use the equipment. IMPORTANT: The modifications are not made for the older "overhead" MedX CTR versions.
PT
Note: Most research states the test subjects completed the exercises 2x per week until reaching a plateau & then reduced the workout to 1x per week. Initial research by McIntire suggests these PT benefits may wear off in 8-12 months if the workout is stopped altogether.
My daughter works out 3x per week as follows:
A) 10-15 minute walk or bike ride (hula-hoop on rainy days) to warm up
B) 20 reps on the VARC (see #1 DETAILS below to see how she progresses)
C) 20 reps Left & Right on the MedX (see #2 DETAILS below to see how she progresses)
CC) Added 2nd seat height (higher), alternating between the two every other workout
CCC) Added 10 eccentric reps Left & Right on MedX
CCCC) Added final seat height (lower), alternating between the three every week
D) Spirometer reading (best of 3 readings is recorded)
E) Large ice pack for back 15 minutes (still no back pain, but will reduce to 2x per week if it occurs)
CURVE & PLAN
Based on what little research I can find on the subject, we do not expect the PT to reduce her curvature; rather, we are hoping it will "hold" her curve. She has curves that made some frightening leaps--the last one BEFORE she was able to fit into the machine was an increase of 12 degrees (primary right thoracic) & 17 degrees (compensatory left lumbar) between x-rays. Her ortho said the PT would not do any good, but agreed that at least she would be in better health for the surgery he was anticipating. We began PT in February 2011. It is too soon to say if it will hold the curve for 5 years, but her initial readings show she is holding steady during a growth spurt.
33T & 27L on 02-10-11
32T & 23L on 06-16-11
34T & 20L on 10-10-11
31T & 25L on 04-16-12
31T & 28L on 10-15-12
31T & 30L on 04-11-13 Betz & Braun read x-rays (ended PT due to an unrelated accident)
31T & 30L on 10-13-14 Betz & Braun read x-rays
31T & 30L on 11-xx-15 Betz & Braun read x-rays--T/ primary curve bent out nicely!
34/5T & 30/2L on 08-xx-16 Newton (Newton read prior 3 x-rays slightly higher than Betz & Braun)
Maturation Levels
2010 R=0, T=1
2011 R=0, T=2 Began PT
2012 R=?, T=3 Continue PT
2013 R=4, T=3-4 End PT
2014 R=4, T=4
2015 R=5, T=5
2016 R=5, T=5
FYI: Her forward head thrust is gone, her spirometer readings are now above normal, she is less tired, & because her core strength is improved her posture is better & she is more comfortable while sitting, standing, & walking.
Our plan is to continue her PT until she is 16ish/ bone maturation occurs. Then, we will drop to 1x or 2x per week for another year. I don't know what will happen in the long run, but she likes that we made our plan together and that we can make changes based on what we see on the x-rays. In the meantime, her quality of life is great.
--Due to an accident, she stopped PT at roughly 26 months.
DETAILS
(This is NOT a suggestion that anyone else should try this workout, I am just telling you what she is doing. Many workouts can be dangerous if a child has anything else going on, so I always check with her ortho to R/O the possibilities of injuries before starting any new exercises!)
PROTOCOL PROGRESSION
BackStrong VARC (Variable Angle Roman Chair)
1) One set of 15-25 to fatigue on BackStrong (20 in a perfect world)
---Turn feet "in" (difficult to maintain)
---Back arch up, NOT flat back up (she loves to swim & calls the head movement a mermaid dip)
---We started at 75 degrees, hands behind back & continued this position until able to do 20
---We stayed at 75°, hands cross sternum & continued this position until able to do 20
---We stayed at 75°, genie arm cross & continued this position until able to do 20
---We stayed at 75°, fingers lightly behind ears & continued this position until able to do 20
---Then, we moved to 60°, 45°, 30°, 15°, & 0° and repeating the process
MedX Core Torso Rotation--(Unit fits 4’10” to 7’11” MALE, but not a 4’9 & ¾” female)
2) One set of 15-25 each direction to fatigue (20 in a perfect world)
Starting weight: 1/3 of body weight OR lift maximum weight and use 50 percent of that amount
ROM (range of motion) setting dependent on ability (#2 seems to work best)
Doctor suggested she increase weight in increments of 5% of current weight, but we increased as smaller percentages.
When she gets to 20 reps per side, then we are supposed to increase weight--not repetitions
Studies discuss exercising 2x per week (research suggests that for this group of muscles 2x - 3x per week provides maximum benefit, but is more likely to cause back pain & then the user will quit the PT)
Note: Conversations with clinics & gyms in the USA suggest 1x per week may be sufficient to achieve positive results. (No definition of “positive” results provided.) They stated they would prefer 2x per week, at least to get the weight lifted “up,” but acknowledged the results are pretty similar. This note is based on telephone conversations, nothing in writing, nothing published.
My Note Reply: Per my records, there was no change in results at the beginning of my daughter’s workout, low weight lifted=no increase/ decrease in curve AND later when a higher weight was lifted=no increase/decrease in curve.
Ongoing workout through puberty (No long term study, but there are some suggestions to be found in various articles that PT needs to be continued until toward the end of a Risser 4 or the beginning of a Risser level of 5 is reached/ bone maturation.
PLATEAU
When she plateaus we are considering the following for the MedX:
• She may add a 2-4 second count hold during full extension; (HAD BACK PAIN)
• Can change the ROM setting; (REVERTED TO #2 & STAYED THERE, NO CHANGE SEEN)
• Add minor seat height changes; (ONLY CHANGE SEEN WAS IN COMPENSATORY CURVE)
• Increase the weight and change angle of arms to 90°; (NO CHANGE SEEN)
• Reduce the frequency of the workout to 2x per week; (NO CHANGE SEEN)
• Consider eccentric workout. (HAD BACK PAIN)
The only ideas we have for the BackStrong VARC when she plateaus is to use an asymmetrical position. (SHE HAD A SMOOTH BACK WHEN USING ASYMMETRICAL POSTION IN THE ROMAN CHAIR—NO CHANGE SEEN ON NEXT X-RAY)
WORKOUT PROTOCOL
The workout she is doing is similar, but not the same, as the Mooney study. (20x BackStrong & 20x MedX portions are the same)
The McIntire protocol is different. They began their Warm up with a specified walk & workout on the MedX, move to Preparation/ Training on MedX, and end with a Burn-out on MedX.
PLEASE SHARE!
I don't know if this is written clearly. I am sure you see I do not have a background in biology or science. If you are trying something similar, please consider sharing your workout and results. I would love to be able to compare notes and exchange research articles on related subjects.
Thanks!
A Mom
Comment