Archive for July, 2009

Course of gross mechanical efficiency in handrim wheelchair propulsion during rehabilitation of people with spinal cord injury: a prospective cohort study

Friday, July 31st, 2009


Course of gross mechanical efficiency in handrim wheelchair propulsion during rehabilitation of people with spinal cord injury: a prospective cohort study

OBJECTIVE: To investigate the course of mechanical efficiency of handrim power wheelchairs amd medical scooters propulsion during rehabilitation of subjects with (in)complete paraplegia and tetraplegia. DESIGN: Subjects were tested at the start of active rehabilitation (t1), 3 months later (t2), and when discharged from inpatient rehabilitation (t3). They performed two 3-minute submaximal treadmill exercise blocks in a wheelchair. SETTING: Eight rehabilitation centers in the Netherlands. PARTICIPANTS: Ninety-two people with (in)complete paraplegia and tetraplegia. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Mechanical efficiency values were calculated for each block. The course of mechanical efficiency was investigated using test occasions (t1 -t3), completeness and level (paraplegia or tetraplegia) of the lesion, and power output as independent variables in a multilevel regression analysis. RESULTS: Mechanical efficiency significantly increased between t1 and t2 only. After adding level and completeness of the lesion and their interactions with time to the model, block 2 showed that subjects with paraplegia had a significantly higher mechanical efficiency than subjects with tetraplegia. Subjects with tetraplegia improved more between t1 and t2 . Differences in mechanical efficiency between subjects with paraplegia and tetraplegia could not be explained by differences in absolute and relative power output levels. CONCLUSIONS: Results showed a significant improvement in mechanical efficiency during the first 3 months of active rehabilitation. Subjects with paraplegia showed a higher mechanical efficiency than did subjects with tetraplegia, whereas the latter showed more improvement between t1 and t2 .

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Demographic and socioeconomic factors associated with disparity in wheelchair customizability among people with traumatic spinal cord injury

Friday, July 24th, 2009


Demographic and socioeconomic factors associated with disparity in wheelchair customizability among people with traumatic spinal cord injury

OBJECTIVES: To determine if a standard of care for wheelchair provision exists within the participating centers and if there is disparity in wheelchair customizability among the study sample. DESIGN: Convenience sample survey. SETTING: Thirteen Model Spinal Cord Injury Systems that provide comprehensive rehabilitation for people with traumatic spinal cord injury (SCI) and that are part of the national database funded through the US Department of Education. PARTICIPANTS: A total of 412 people with SCI who use wheelchairs over 40 hours a week. INTERVENTION: Survey information was obtained from subjects via telephone and in-person interviews and from the national database. Collected information included age, race, education, level of injury, and wheelchair funding source. MAIN OUTCOME MEASURES: Number and type (manual or power) of wheelchairs. Wheelchair customizability as defined by design features (eg, adjustable axle position, programmable controls). RESULTS: Ninety-seven percent of manual wheelchair users and 54% of power wheelchairs users had customizable wheelchairs. No power wheelchair user received a wheelchair without programmable controls. Minorities with low socioeconomic backgrounds (low income, Medicaid/Medicare recipients, less educated) were more likely to have standard manual and standard programmable power wheelchairs. Older subjects were also more likely to have standard programmable power wheelchairs and handicap scooters. CONCLUSIONS: The standard of care for manual wheelchair users with SCI is a lightweight and customizable wheelchair. The standard of care for power wheelchairs users has programmable controls. Unfortunately, socioeconomically disadvantaged people were less likely to receive customizable wheelchairs.

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Handicap needs awareness

Tuesday, July 21st, 2009


Handicap needs awareness

I would like to raise people’s awareness of handicap scooters needs around the Laboratory workplace. People on crutches, scooters and wheelchairs have some different needs than the ambulatory. I am the first to admit that when I was ambulatory I was unaware of the environment around me in these terms. However, now that I am in a wheelchair, I would like to share with my co-workers some needs and easy-to-do things for people around the Lab.
Doors are a big issue. People in power wheelchairs, scooters etc., need to place themselves to the side of the door to open it. Objects such as trash cans, tables and chairs placed next to the door result in a situation where a disabled person cannot open the door. Please make sure that a 3-foot-wide space is available between the side of the door that opens and any object placed along the wall.
Another issue is bathrooms. If there are multiple stalls available please do not choose the wheelchair accessible stall if you do not need it. It is frustrating and potentially unpleasant to have to wait for the bathroom stall because it is occupied when three other stalls are available.
Wheelchairs, scooters and crutches require more maneuvering room than just the typical human body. Objects piled in hallways can create impassible situations. Imagine not being able to go to a meeting or your office because the hallway was blocked and there was no way around.
Even though it seems like sitting in a wheelchair or scooter requires no effort, disabled people are often plagued by fatigue. And, little tasks such as opening doors can require a great deal of effort. Think about how we would feel to go about the day with a bungee cord around our legs and arms.
I want to thank people for spending an extra second to make life more normal for people who are disabled.

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Credit Card Companies

Tuesday, July 14th, 2009

Credit Card Companies

Most building business credit card companies send mail to your home or office with pre-approved card offers. Although it sounds good, it’s only a marketing scheme for saying “We’ve noticed you but you need to pass an additional test”. That’s why the envelope comes with a proper business line of credit card application.

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Testing of gel-electrolyte batteries for wheelchairs

Sunday, July 12th, 2009


Testing of gel-electrolyte batteries for wheelchairs

A simple test rig was developed to measure the capacity of the lead-acid gel-electrolyte batteries used to power wheelchairs and medical scooters. Results of 166 tests revealed a wide scatter of battery life with different users and also showed that, in many cases, the two batteries used in a wheelchair became unequal in charge capacity after some time in use. It is recommended that pairs of batteries should be charged in series to overcome this problem.

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Medicare program; conditions for payment of power mobility devices, including power wheelchairs and power-operated vehicles. Interim final rule with comment period.

Saturday, July 11th, 2009


Medicare program; conditions for payment of power mobility devices, including power wheelchairs and power-operated vehicles. Interim final rule with comment period.

This interim final rule conforms our regulations to section 302(a)(2)(E)(iv) of the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (Pub. L. 108-173). This rule defines the term power mobility devices (PMDs) as medicare power wheelchairs and power operated vehicles (POVs or medical scooters). It sets forth revised conditions for Medicare payment of PMDs and defines who may prescribe PMDs. This rule also requires a face-to-face examination of the beneficiary by the physician or treating practitioner and a PMD prescription and pertinent parts of the medical record that the durable medical equipment supplier maintains in records and makes available to CMS or its agents upon request. Finally, this rule discusses CMS’ policy on documentation that may be requested by CMS or its agents to support a Medicare claim for payment, as well as the elimination for the Certificate of Medical Necessity for PMDs.

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BBQ FACTS: Leftovers

Friday, July 10th, 2009


BBQ FACTS: Leftovers

Refrigerate any <a href=’http://www.1topsecret-bbq-sauce-recipe.com’>barbeque sauce recipe</a> leftovers promptly in shallow containers. Discard any <a href=’http://www.1topsecret-bbq-sauce-recipe.com’>barbecue sauce recipes</a> food left out more than 2 hours (1 hour if temperatures are above 90 F).

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Monthly Interest

Wednesday, July 8th, 2009

Monthly Interest

On the other hand, if you can afford to pay a monthly interest and are very interested in other perks like airline rewards, then a 0 APR building business credit card should not be your first choice.

Banks have become very creative in the products they entice you with. You may see that 0 APR business line of credit card have periods of time that go from 6 to 15 months and beyond, and may even offer some additional benefits.

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Links

Sunday, July 5th, 2009

Phone Reverse Tracking

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Links

Sunday, July 5th, 2009

Reverse Phone Tracking
0×80070005 192.168.1.1

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Consequences of a cross slope on wheelchair handrim biomechanics

Sunday, July 5th, 2009


Consequences of a cross slope on wheelchair handrim biomechanics

OBJECTIVE: To test the hypothesis that pushing on a cross slope leads to increased handrim loading compared with that found on a level surface. DESIGN: Case series. SETTING: Biomechanics laboratory. PARTICIPANTS: Twenty-six manual wheelchair users. INTERVENTION: Subjects pushed their own wheelchairs on a research treadmill set to level, 3 degrees , and 6 degrees cross slopes. Propulsion speed was self-selected for each cross-slope condition. Handrim biomechanics were measured for the downhill wheel, using an instrumented power wheelchairs wheel and a motion capture system. MAIN OUTCOME MEASURES: Speed, peak kinetics (force, rate of loading, torque), push angle, cadence, push distance, and medicare power wheelchairs power output were averaged over a 20-push set for each subject and each cross-slope condition. Outcomes were compared across cross slopes using a repeated-measures analysis of variance. RESULTS: Push angle and cadence were unaffected by cross slope. A trend of decreasing self-selected speeds with increasing cross slope was not significant. There were considerable increases in the peak kinetic measures, with the axial moment increasing by a factor of 1.8 on the 6 degrees cross slope (P=.000). More pushes were required to cover the same distance when on a cross slope (P<.034). The power required for propulsion increased by a factor of 2.3 on the 6 degrees cross slope (P=.000). CONCLUSIONS: Users must push harder when on a cross slope. This increased loading is borne by the users' arms, which are at risk for overuse injuries. Exposure to biomechanic loading can be reduced by avoiding cross slopes when possible.

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Integrated control and related technology of assistive devices

Friday, July 3rd, 2009


Integrated control and related technology of assistive devices

Assistive devices are now available that allow persons with severe physical disabilities to complete tasks independently. When the user has severe physical limitations, it may be advantageous to have an integrated control system where a single control interface (e.g., joystick, head switches, voice recognition system, keypad) is used to operate two or more assistive devices (e.g., power wheelchairs, augmentative communication devices, handicap scooters, computers, environmental control units, and other devices that are controlled electronically). The advantages of integrated control are that persons with limited motor control can access several devices with one access site without assistance, and the user does not need to learn a different operating mechanism for each device. The purpose of this review is to convey the depth and breadth of the research that has been conducted on integrated control systems, as well as to provide some insights into future directions. We reviewed research works pertaining to communication and environmental control, computer access, and wheelchair guidance systems. Information gathered in this study will help people become fully aware of the status of contemporary integrated control technology in order to increase the quality of life of people who use electronic assistive devices.

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Thaw Safely

Friday, July 3rd, 2009


Thaw Safely

Completely thaw <a href=’http://www.1topsecret-bbq-sauce-recipe.com’>barbeque sauce recipes</a> meat and poultry before grilling so it cooks more evenly. Use the <a href=’http://www.1topsecret-bbq-sauce-recipe.com’>barbecue sauce recipe</a> refrigerator for slow, safe thawing or thaw sealed packages in cold water. You can microwave defrost if the food will be placed immediately on the grill.

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Card Terms

Wednesday, July 1st, 2009

Card Terms

If you read the terms of your business line of credit card you will see that a fee is charged for late payments. This means that if you do not pay your bill by a certain date you will be charged a late fee.

It pays to not just be on time with your building business credit card bills but to be early if possible.

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