Comparison Between Isotonic 1 Repetition Maximum Measurement With Isometric Muscle Strength Testing In Healthy Females
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ClinicalTrials.gov Identifier: NCT02717793 |
Recruitment Status :
Completed
First Posted : March 24, 2016
Last Update Posted : March 28, 2016
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Condition or disease | Intervention/treatment | Phase |
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No Condition, Healthy Females | Other: Strength testing | Phase 1 |

Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 30 participants |
Allocation: | Randomized |
Intervention Model: | Crossover Assignment |
Masking: | Single (Outcomes Assessor) |
Official Title: | Comparison Between Isotonic 1 Repetition Maximum Measurement With Isometric Muscle Strength Testing In Healthy Females |
Study Start Date : | October 2013 |
Actual Primary Completion Date : | December 2015 |
Arm | Intervention/treatment |
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Experimental: isometric muscle strength
isometric muscle strength was measured with a digital hand-held dynamometer. The digital hand-held dynamometer was held by the therapist against the flexor aspect of the distal forearm of the subject, on the wrist joint. Subject was asked to maintain the position and a break test was done with progressive loading of 5 seconds given by the tester. The peak isometric strength was recorded by a second tester at the end of 5 seconds. A standardised instructions and verbal encouragement was given to the subject for motivation. Subject as well as the tester was blinded to the values recorded on the digital hand-held dynamometer. An average of three measurements (with a rest period of 4 minutes in between each trial session) was recorded for the analysis. After each trial session, the rate of perceived exertion (RPE) was asked to the subject using the "1-10 Borg rating of perceived exertion scale"
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Other: Strength testing
isometric muscle strength 1RM measurement of muscle strength |
Experimental: 1RM measurement of muscle strength
1RM measurement was done using the Brzycki 1RM prediction equation. In first testing session, subject was instructed to perform a general warm up for 5 minutes. Thereafter, the subject was asked to perform 10 repetitions of the movement using the amount of resistance that the subject felt she will be able to lift for only less than 10 times. The selection of the weight is made based on a list of weights provided (1kg to 10kg). When the subject performed the movement for 10 times or more, then the resistance was increased 1kg at a time, until the subject can perform only 9 or fewer repetitions of the movement correctly throughout the range of motion. A 3 minutes rest period was given to the subject before the new attempt was done with the increased weight. A standardized verbal encouragement was provided for motivation
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Other: Strength testing
isometric muscle strength 1RM measurement of muscle strength |
- Visual Analogue Scale [ Time Frame: 1 minute after Exercise ]

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Ages Eligible for Study: | 19 Years to 35 Years (Adult) |
Sexes Eligible for Study: | Female |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Healthy females
Exclusion Criteria:
- musculoskeletal and neurological disorder
- history of high blood pressure
- heart disease
- rheumatologic disease that affected the mobility
- unstable cardio respiratorydisorder
- cardiovascular disorder

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02717793
Malaysia | |
Manisha | |
Kajang, Selangor, Malaysia, 43000 |
Responsible Party: | Manisha Parai, Lecturer, Universiti Tunku Abdul Rahman |
ClinicalTrials.gov Identifier: | NCT02717793 History of Changes |
Other Study ID Numbers: |
SERC231013 |
First Posted: | March 24, 2016 Key Record Dates |
Last Update Posted: | March 28, 2016 |
Last Verified: | March 2016 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |