NCT03951857

Brief Summary

Obesity leads to a vicious circle that increases intramuscular fat, insulin resistance, promotes muscular dysfunction resulting in increased muscle fat accumulation. The study of muscle function and intramyocellular lipids is insufficient for obesity. Particularly, the study of mechanisms in muscle function and intramyocellular lipids is few nationally and internationally.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
28

participants targeted

Target at below P25 for not_applicable obesity

Timeline
Completed

Started Nov 2016

Typical duration for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 18, 2016

Completed
2.5 years until next milestone

First Submitted

Initial submission to the registry

May 10, 2019

Completed
5 days until next milestone

First Posted

Study publicly available on registry

May 15, 2019

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 29, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 29, 2020

Completed
Last Updated

March 11, 2020

Status Verified

March 1, 2020

Enrollment Period

3.3 years

First QC Date

May 10, 2019

Last Update Submit

March 10, 2020

Conditions

Keywords

AgingObesitySingle muscle fiber contractile propertiesIntramyocellular lipidsResistance exercise

Outcome Measures

Primary Outcomes (7)

  • Total droplet area

    Change from baseline total droplet area to 12 weeks after initial assessment. Total droplet area is determined by Oil-red-O staining. After staining, the total area (µm2) is analyzed to compare the change after intervention from baseline.

    Before intervention / after 12weeks intervention

  • Number of lipid droplets

    Change from baseline number of lipid droplets to 12 weeks after initial assessment. Number of lipid droplets determined by Oil-red-O staining. After staining, number of lipid droplets is analyzed to compare the change after intervention from baseline.

    Before intervention / after 12weeks intervention

  • Single muscle fiber cross-sectional area (CSA)

    Change from baseline CSA to 12 weeks after initial assessment. Chemically skinned vastus lateralis muscle fiber CSA (µm2) is measured by 3 dimensional microscopy. after analysis, CSA is compared the change after intervention from baseline.

    Before intervention / after 12weeks intervention

  • Single muscle fiber maximal force (Po)

    Change from baseline Po to 12 weeks after initial assessment. Chemically skinned vastus lateralis muscle fiber Po (mN) is measured by slack test procedure. after measurement, Po is analyzed to compare the change after intervention from baseline.

    Before intervention / after 12weeks intervention

  • Single muscle fiber specific force (SF)

    Change from baseline SF to 12 weeks after initial assessment. Chemically skinned vastus lateralis muscle fiber SF (kN/m2) is Po (kN) normalized by cross-sectional area (m2). SF is analyzed to compare the change after intervention from baseline.

    Before intervention / after 12weeks intervention

  • Single muscle fiber maximal shortening velocity (Vo)

    Change from baseline Vo to 12 weeks after initial assessment. Chemically skinned vastus lateralis muscle fiber Vo (FL/s) is measured by slack test procedure. The time required to take up the imposed slack was measured from the onset of the length step to the beginning of the tension redevelopment . For each amplitude of length, the fiber was reextended while relaxed to minimize nonuniformity of sarcomere length. A straight line was presented to a plot of length vs. time, using least-squares regression, and the slope of the line divided by the segment length was recorded as Vo for that fiber. Vo is analyzed to compare the change after intervention from baseline.

    Before intervention / after 12weeks intervention

  • Single muscle fiber MHC type distribution

    Change from baseline fiber type distribution to 12 weeks after initial assessment. The MHC composition of single fibers was determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). MHC type distribution is analyzed to compare the change after intervention from baseline.

    Before intervention / after 12weeks intervention

Secondary Outcomes (2)

  • Hand grip strength

    Before intervention / after 12weeks intervention

  • Isokinetic knee extension strength

    Before intervention / after 12weeks intervention

Study Arms (4)

Young men

NO INTERVENTION

Range of age is 20-35 years, young men (BMI 19-23 Kg/m2) They did not suffer from musculoskeletal or metabolic diseases, and had not performed regular exercise within the previous 3 months.

Young women

NO INTERVENTION

Range of age is 20-35 years, young women (BMI 19-23 Kg/m2) They did not suffer from musculoskeletal or metabolic diseases, and had not performed regular exercise within the previous 3 months.

Elderly women (control)

EXPERIMENTAL

Range of age is 65-80 years, Elderly women (BMI 19-23 Kg/m2) They did not suffer from musculoskeletal or metabolic diseases, and had not performed regular exercise within the previous 3 months.

Other: Resistance exercise with a gym stick

Elderly obese women

EXPERIMENTAL

Range of age is 65-80 years,Elderly obese women (BMI ≥25 Kg/m2) They did not suffer from musculoskeletal or metabolic diseases, and had not performed regular exercise within the previous 3 months.

Other: Resistance exercise with a gym stick

Interventions

Exercise intervention: The resistance exercise intervention is performed with a gym stick for 3 times a week for 12 weeks. Exercise load is gradually increased by the number of times the band is wound and the speed of motion by dividing into three stages in 1-4 weeks (1st stage), 5-8 weeks (2nd stage) and 9-12 weeks (3rd stage).

Also known as: Exercise training
Elderly obese womenElderly women (control)

Eligibility Criteria

Age20 Years - 80 Years
Sexall(Gender-based eligibility)
Gender Eligibility DetailsThis study is divided into two purposes. 1. To examine the distribution and contractile properties (CSA, Po, SF, Vo) of single muscle fiber sex/MHC type-related differences in youn men and women. 2. To examine effects of 12-week resistance exercise on single muscle fiber funtion and intramyocellular lipids in aging and obese elderly women. For the purposes of the first study, young men and women (age 20-35 yrs) should be participated in this study. aimed to examine the distribution and contractile properties (CSA, Po, SF, Vo) of single muscle fiber sex/MHC type-related differences, by extracting a single muscle fiber from the vastus lateralis in young men and women
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Young men: Age (20-35 yrs), BMI (19-23 Kg/m2)
  • Young women: Age (20-35 yrs), BMI (19-23 Kg/m2)
  • Elderly women: Age (65-80 yrs), BMI (19-23 Kg/m2)
  • Elderly obese women: Age (65-80 yrs), BMI ( \>25 Kg/m2)
  • Subjects who can agree voluntarily.

You may not qualify if:

  • Acute coronary syndrome.
  • Uncontrolled hypertension.
  • Subjects who took drugs which can affects neuromuscular system.
  • Severely impaired cognition
  • Subjects who cannot agree voluntarily

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Seoul National University Bundang Hospital

Seongnam-si, Gyeonggi-do, 463-707, South Korea

Location

Related Publications (18)

  • Lexell J, Taylor CC, Sjostrom M. What is the cause of the ageing atrophy? Total number, size and proportion of different fiber types studied in whole vastus lateralis muscle from 15- to 83-year-old men. J Neurol Sci. 1988 Apr;84(2-3):275-94. doi: 10.1016/0022-510x(88)90132-3.

    PMID: 3379447BACKGROUND
  • Doherty TJ, Vandervoort AA, Brown WF. Effects of ageing on the motor unit: a brief review. Can J Appl Physiol. 1993 Dec;18(4):331-58. doi: 10.1139/h93-029.

    PMID: 8275048BACKGROUND
  • Goodpaster BH, Park SW, Harris TB, Kritchevsky SB, Nevitt M, Schwartz AV, Simonsick EM, Tylavsky FA, Visser M, Newman AB. The loss of skeletal muscle strength, mass, and quality in older adults: the health, aging and body composition study. J Gerontol A Biol Sci Med Sci. 2006 Oct;61(10):1059-64. doi: 10.1093/gerona/61.10.1059.

    PMID: 17077199BACKGROUND
  • Hughes VA, Frontera WR, Wood M, Evans WJ, Dallal GE, Roubenoff R, Fiatarone Singh MA. Longitudinal muscle strength changes in older adults: influence of muscle mass, physical activity, and health. J Gerontol A Biol Sci Med Sci. 2001 May;56(5):B209-17. doi: 10.1093/gerona/56.5.b209.

    PMID: 11320101BACKGROUND
  • Goodpaster BH, Krishnaswami S, Resnick H, Kelley DE, Haggerty C, Harris TB, Schwartz AV, Kritchevsky S, Newman AB. Association between regional adipose tissue distribution and both type 2 diabetes and impaired glucose tolerance in elderly men and women. Diabetes Care. 2003 Feb;26(2):372-9. doi: 10.2337/diacare.26.2.372.

    PMID: 12547865BACKGROUND
  • Tuttle LJ, Sinacore DR, Mueller MJ. Intermuscular adipose tissue is muscle specific and associated with poor functional performance. J Aging Res. 2012;2012:172957. doi: 10.1155/2012/172957. Epub 2012 May 14.

    PMID: 22666591BACKGROUND
  • Yim JE, Heshka S, Albu J, Heymsfield S, Kuznia P, Harris T, Gallagher D. Intermuscular adipose tissue rivals visceral adipose tissue in independent associations with cardiovascular risk. Int J Obes (Lond). 2007 Sep;31(9):1400-5. doi: 10.1038/sj.ijo.0803621. Epub 2007 Apr 24.

    PMID: 17452994BACKGROUND
  • Visser M, Kritchevsky SB, Goodpaster BH, Newman AB, Nevitt M, Stamm E, Harris TB. Leg muscle mass and composition in relation to lower extremity performance in men and women aged 70 to 79: the health, aging and body composition study. J Am Geriatr Soc. 2002 May;50(5):897-904. doi: 10.1046/j.1532-5415.2002.50217.x.

    PMID: 12028178BACKGROUND
  • Koster A, Ding J, Stenholm S, Caserotti P, Houston DK, Nicklas BJ, You T, Lee JS, Visser M, Newman AB, Schwartz AV, Cauley JA, Tylavsky FA, Goodpaster BH, Kritchevsky SB, Harris TB; Health ABC study. Does the amount of fat mass predict age-related loss of lean mass, muscle strength, and muscle quality in older adults? J Gerontol A Biol Sci Med Sci. 2011 Aug;66(8):888-95. doi: 10.1093/gerona/glr070. Epub 2011 May 13.

    PMID: 21572082BACKGROUND
  • Addison O, Marcus RL, Lastayo PC, Ryan AS. Intermuscular fat: a review of the consequences and causes. Int J Endocrinol. 2014;2014:309570. doi: 10.1155/2014/309570. Epub 2014 Jan 8.

    PMID: 24527032BACKGROUND
  • Goodpaster BH, Carlson CL, Visser M, Kelley DE, Scherzinger A, Harris TB, Stamm E, Newman AB. Attenuation of skeletal muscle and strength in the elderly: The Health ABC Study. J Appl Physiol (1985). 2001 Jun;90(6):2157-65. doi: 10.1152/jappl.2001.90.6.2157.

    PMID: 11356778BACKGROUND
  • Yoshida Y, Marcus RL, Lastayo PC. Intramuscular adipose tissue and central activation in older adults. Muscle Nerve. 2012 Nov;46(5):813-6. doi: 10.1002/mus.23506.

    PMID: 23055318BACKGROUND
  • Visser M, Goodpaster BH, Kritchevsky SB, Newman AB, Nevitt M, Rubin SM, Simonsick EM, Harris TB. Muscle mass, muscle strength, and muscle fat infiltration as predictors of incident mobility limitations in well-functioning older persons. J Gerontol A Biol Sci Med Sci. 2005 Mar;60(3):324-33. doi: 10.1093/gerona/60.3.324.

    PMID: 15860469BACKGROUND
  • Ryan AS, Ortmeyer HK, Sorkin JD. Exercise with calorie restriction improves insulin sensitivity and glycogen synthase activity in obese postmenopausal women with impaired glucose tolerance. Am J Physiol Endocrinol Metab. 2012 Jan 1;302(1):E145-52. doi: 10.1152/ajpendo.00618.2010. Epub 2011 Oct 18.

    PMID: 22008454BACKGROUND
  • Santanasto AJ, Glynn NW, Newman MA, Taylor CA, Brooks MM, Goodpaster BH, Newman AB. Impact of weight loss on physical function with changes in strength, muscle mass, and muscle fat infiltration in overweight to moderately obese older adults: a randomized clinical trial. J Obes. 2011;2011:516576. doi: 10.1155/2011/516576. Epub 2010 Oct 10.

    PMID: 20953373BACKGROUND
  • Gorgey AS, Mather KJ, Cupp HR, Gater DR. Effects of resistance training on adiposity and metabolism after spinal cord injury. Med Sci Sports Exerc. 2012 Jan;44(1):165-74. doi: 10.1249/MSS.0b013e31822672aa.

    PMID: 21659900BACKGROUND
  • Menshikova EV, Ritov VB, Fairfull L, Ferrell RE, Kelley DE, Goodpaster BH. Effects of exercise on mitochondrial content and function in aging human skeletal muscle. J Gerontol A Biol Sci Med Sci. 2006 Jun;61(6):534-40. doi: 10.1093/gerona/61.6.534.

    PMID: 16799133BACKGROUND
  • Choi SJ, Files DC, Zhang T, Wang ZM, Messi ML, Gregory H, Stone J, Lyles MF, Dhar S, Marsh AP, Nicklas BJ, Delbono O. Intramyocellular Lipid and Impaired Myofiber Contraction in Normal Weight and Obese Older Adults. J Gerontol A Biol Sci Med Sci. 2016 Apr;71(4):557-64. doi: 10.1093/gerona/glv169. Epub 2015 Sep 23.

    PMID: 26405061BACKGROUND

MeSH Terms

Conditions

Obesity

Interventions

Exercise

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Jae-Youn Lim, Ph.D.

    Seoul National University Bundang Hospital

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor, Department of Rehabilitation Medicine

Study Record Dates

First Submitted

May 10, 2019

First Posted

May 15, 2019

Study Start

November 18, 2016

Primary Completion

February 29, 2020

Study Completion

February 29, 2020

Last Updated

March 11, 2020

Record last verified: 2020-03

Data Sharing

IPD Sharing
Will not share

Locations