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Isokinetic Testing Protocol in Elderly and Young Men

This study has been completed.
Sponsor:
Information provided by:
University of Brasilia
ClinicalTrials.gov Identifier:
NCT00673998
First received: April 30, 2008
Last updated: May 6, 2008
Last verified: May 2008
History of Changes

April 30, 2008
May 6, 2008
February 2005
March 2006   (final data collection date for primary outcome measure)
Peak Torque [ Time Frame: 1 week ] [ Designated as safety issue: Yes ]
Same as current
Complete list of historical versions of study NCT00673998 on ClinicalTrials.gov Archive Site
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Isokinetic Testing Protocol in Elderly and Young Men
The Effects of Rest Interval on Quadriceps Torque During an Isokinetic Testing Protocol in Elderly and Young Men

An age-related decrease in muscular strength may have a detrimental effect on muscle fatigue and recovery. To date, only one study has determined the effect of varied rest intervals (RI) between exercise sets in active younger and older women. They reported that active younger and older women require similar RI between sets to recovery full isokinetic knee extension peak torque (PT). However, we are unaware of any published studies comparing RI PT recovery between younger and older men. Thus, the purpose of this study was to compare the effect of two different RI's between sets of isokinetic knee extension exercise on PT, and Total Work (TW) between untrained younger and older men.

18 young men (24.22 ± 2.58 yrs) and 20 older men (66.85 ± 4.02 yrs) performed 3 sets of 10 unilateral isokinetic knee extension repetitions at 60°/s. The rest intervals between sets were 1 and 2 minutes and were counterbalanced across 2 testing days, separated by a minimum of 48 hours. The work-to-rest ratio was 1:3 and 1:6. All subjects were not involved in exercise programs that included resistance exercises within the last 6 months. Statistical evaluation of the data was performed using a 2x 2 x 3 mixed factor repeated measures ANOVA [age (younger and older) x rest interval (1 and 2 min) x set (1st, 2nd, and 3rd)]. Statistical significance was set at p < 0.05 for all comparisons.
Interventional
Not Provided
Allocation: Randomized
Endpoint Classification: Safety Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Healthy
Device: Isokinetic Dynamometer (Biodex system III)
Biodex system III Isokinetic Dynamometer (Biodex Medical, Inc., Shirley, NY).
Other Names:
  • Biodex Isokinetic Dynamometer
  • Cybex Isokinetic Dynamometer
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
38
November 2006
March 2006   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Less than 75 years
  • Independent

Exclusion Criteria:

  • History of cardiovascular disease
  • Hypertension
  • Orthopedic disease
Male
20 Years to 75 Years
Yes
Contact information is only displayed when the study is recruiting subjects
Brazil
 
NCT00673998
UCB-072/2004
No
Martim Bottaro, PhD, University of Brasilia
University of Brasilia
Not Provided
Principal Investigator: Martim Bottaro, PhD University of Brasilia
University of Brasilia
May 2008

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP