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Aerobic and Strengthening Exercise for Acute Leukemia

Ainult registreeritud kasutajad saavad artikleid tõlkida
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StaatusValmis
Sponsorid
St. Jude Children's Research Hospital

Märksõnad

Abstraktne

Survivors of childhood leukemia have muscle weakness and impaired mobility (physical performance), a higher than expected frequency of obesity, and early mortality from cardiovascular disease. Treatment related neuropathy, cardiotoxicity and general cachexia may complicate physical performance and establish a pattern of sedentary behavior that may lead to a lifetime of inactivity. There is limited evidence that children being treated for leukemia benefit from home exercise programs during the maintenance phase of therapy, particularly in terms of muscle strength and range of motion. However, there are no established guidelines regarding the prescription of exercise for children diagnosed with leukemia. We propose to test the feasibility of an exercise intervention among children being treated for acute lymphoblastic leukemia (ALL) and hypothesize that children who participate in the exercise intervention will demonstrate improvements in gross motor function, strength, flexibility, and cardio respiratory fitness, and that they will have more favorable body composition when compared to the children who are assigned to the usual activity group.

Kirjeldus

The purpose of this trial is to determine the feasibility of an aerobic and strengthening exercise intervention trial among children during maintenance therapy for childhood ALL by evaluating participant accrual, participant compliance, and burden to the institutional staff.

We anticipate that key barriers exist which threaten the successful completion of an interventional trial of exercise within the ALL patient population. Approximately 2,500 to 3,500 children are diagnosed each year with ALL and similar numbers will enter the maintenance phase of therapy during a given year. About 22% of those diagnosed are between 5 and 8 years old. Thus accrual is limited by the small patient population but fortunately most patients with ALL receive their care at dedicated pediatric oncology institutions. Lack of interest or lack of understanding of the underlying problem of obesity and weakness among survivors in the ALL population may be additional barriers to accrual. In addition, families may be overwhelmed by the primary diagnosis of leukemia and feel that they are unable to take on additional challenges.

Compliance to a rigorous exercise regimen must be ascertained if demonstrable improvement in motor performance, body composition and cardiovascular disease risk profile are to occur. Key to this study is not only short-term compliance but designing an intervention that will promote and improve long-term rates of exercise. Barriers to compliance include length of time to complete the intervention, number of days the intervention must be administered, perceived benefit by the participant, difficulty of the intervention, inadequate demonstration of the intervention, poor understanding by the participant/parent of the importance of obesity and weakness among survivors of childhood ALL, and health issues in regard to the primary diagnosis of ALL.

We will open a feasibility study at 3 institutions dedicated to treatment of childhood cancer: St. Jude Children's Research Hospital, Oregon Health & Science University and Vanderbilt Ingram Cancer Center .The accrual goal of this study will be a total of 20 patients. The hypothesized outcome for this aim of the feasibility study will be an accrual rate of 50% of eligible patients at a given institution.

Motor Function The Bruinicks-Osteretsky Test of Motor Proficiency Version 2 (BOT-2) will be used to measure participants' motor function. Maximum isometric knee extension strength will be measured with a hand held myometer and hand grip strength will be measured with a hand held dynamometer. Additionally, flexibility will be measured with the sit and reach test. Ankle dorsiflexion active and passive range of motion will be measures with a goniometer. Aerobic capacity will be measured with the modified Cooper 6 minute walk test. Body composition and vital signs will also be collected.

Intervention Participants will receive counseling and written material regarding the benefits of exercise and an individualized exercise instruction session based on the results of their baseline testing and their individual preferences. Each program will include ability specific stretching/flexibility, progressive resistive strengthening, and aerobic exercise. Necessary equipment for the strengthening (weights, stretch cords, elastic bands) and aerobic components will also be provided. A videotape demonstrating each exercise in the intervention will be given to the participant and their parent."

Detailed written instructions, along with a book to log exercise, will also be provided. Stickers and small toys will be provided for the parents to give to their children for completing their exercises. Participants will receive a weekly phone call from an exercise coach, to answer questions and to progress the intervention. Participants will also receive counseling and review/progression of the exercise intervention at each usual clinic visit (approximately monthly). During the pilot study, participants will continue to receive the intervention for six months, with weekly phone calls tapering to every other week after three months. The exercise coach will be available to the participant/parent as needed via phone and/or email throughout the intervention period.

Kuupäevad

Viimati kinnitatud: 12/31/2011
Esmalt esitatud: 09/30/2008
Hinnanguline registreerumine on esitatud: 10/01/2008
Esmalt postitatud: 10/02/2008
Viimane värskendus on esitatud: 01/04/2012
Viimati värskendus postitatud: 01/08/2012
Õppe tegelik alguskuupäev: 12/31/2007
Eeldatav esmane lõpetamise kuupäev: 11/30/2011
Eeldatav uuringu lõpetamise kuupäev: 11/30/2011

Seisund või haigus

Acute Lymphoblastic Leukemia

Sekkumine / ravi

Other: 1

Other: 1

Other: 1

Other: 1

Other: 1

Other: 1

Other: 1

Faas

-

Käerühmad

ArmSekkumine / ravi
Other: 1
This single-arm feasibility trial will evaluate the administration of an aggressive exercise regimen.
Other: 1
The Bruinicks-Osteretsky Test of Motor Proficiency Version 2 (BOT-2) will be used to measure participants' motor function. The test is norm- referenced and designed to test motor function in children and adolescents 4 -21 years of age. The motor composite score describes overall motor abilities and is comprised of fine motor control, manual coordination, body coordination, and strength and agility. We will use the total motor composite to describe overall motor function.

Abikõlblikkuse kriteeriumid

Õppimiseks sobivad vanused 5 Years To 5 Years
Uuringuks kõlblikud soodAll
Võtab vastu tervislikke vabatahtlikkeJah
Kriteeriumid

Inclusion Criteria:

- Diagnosed with childhood ALL when age greater than 1 and less than 10 at diagnosis, white blood cell count less than 50,000 cells/microliter and receiving continuation/maintenance therapy based on the original disease classification

- In first remission

- Maintenance phase of therapy (Eligibility extends from Day 0 of maintenance therapy up to six months prior to the completion of therapy)

- Current age 5-10 years

- Modified Lansky performance scale must score 60 or higher at time of enrollment

- Written informed consent

Exclusion Criteria:

- Lower extremity amputation or congenital deformity of lower limb

- History of pre-existing neuron-motor or neuro-developmental disorder prior to diagnosis of childhood ALL, such as mental retardation, Down syndrome, cerebral palsy, and traumatic brain injury

- Pre-existing heart or lung disease by clinical history

- Children with specific contraindications to exercise will be offered enrollment after this transient condition is resolved: severe anemia (Hemoglobin less than 8 g/dl), fever greater than 38 degrees Centigrade, platelets less than 50*109/ul, neutrophil counts less than 0.5*109/ul.

Tulemus

Esmased tulemusnäitajad

1. To determine the feasibility of an aerobic and strengthening exercise intervention trial among children during maintenance therapy for childhood ALL by evaluating participant accrual, participant compliance and burden to institutional staff. [1 year]

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