Effectiveness of Muscular Work and Genetic Variants in Strength Gain of Ischiofemoral and Quadriceps
1 other identifier
interventional
80
0 countries
N/A
Brief Summary
In the field of sports training and recovery, the work of muscular strength has become the star theme in terms of its influence on the performance of athletes. In fact, in relation to the training of the inferior members, the scientific evidence indicates that, to increase the other two physical qualities conditioned (speed and resistance), it is necessary to work and to increase the muscular strength. Randomized intervention trial with sample size of 80 subjects divided into 4 groups (n = 20) of muscular work: concentric, eccentric, concentric-eccentric and isometric. Ages between 21-23 years. For all the above, the investigators will study as a main objective analyze what type of muscular work is most effective in order to improve some variables of the performance of explosive muscular strength, and to try to determine if that improvement is due, exclusively to the developed training or to the genetics of the subjects and compare the results obtained in the variables of vertical jump, power of saint, horizontal jump and speed 60 meters, before and after the execution of each one of the muscular works dynamic among themselves, and compared to the muscular work isometric.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Oct 2015
Typical duration for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 1, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
July 12, 2017
CompletedFirst Submitted
Initial submission to the registry
May 28, 2019
CompletedFirst Posted
Study publicly available on registry
June 4, 2019
CompletedJune 4, 2019
June 1, 2019
1.3 years
May 28, 2019
June 1, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Jump power
Mechanical power in jump tests were measured by estimated (indirect way) from a subject's jump height and body mass, by means of Sayers equation.
Changes from baseline and at the end of procedure (12 days)
Vertical jump
The protocol followed for the measurement was; First time: When the patient was barefoot, he placed himself sideways to a smooth wall and raised his right arm with his hand flat on the wall; The distance from the ground to the third finger of the hand (H1) was then measured. Second time: The subject was impregnated the third finger of the right hand in blue chalk powder, separated 10 centimeters from the wall and made a jump back movement with freedom to flex the lower limbs to the 90 º and move the arms, to consecutively and without any pause make a maximum vertical jump. Subsequently, this new distance was measured. This jump was made three times with a break between jump and jump of 45 seconds, and the average of the three (H2) was obtained. Third time: The value of the vertical jump was H = h1-h2.
Changes from baseline and at the end of procedure (12 days)
Horizontal jump
On a smooth and horizontal surface, different marks were made distanced one meter each. In the first mark the subject was placed with the feet slightly separated at the height of the hips. Then a first test jump was made; To do so, the subject was told to swing with his arms and bending his knees, he had to jump forward with the greatest possible power. Once this first Test jump was made, the second measurement was carried out, the result of which was taken into account. This result was obtained in centimeters by means of measuring tape, with a precision of one millimeter (mm), and having as points of reference the first mark and the heel of the foot more retarded. The jump was not valid if the first mark was exceeded with the feet before taking off from the ground.
Changes from baseline and at the end of procedure (12 days)
60 meters sprint
On an unobstructed sand surface, a distance of 60 meters was pointed out. The measurement in seconds of this variable was obtained by means of a stopwatch.
Changes from baseline and at the end of procedure (12 days)
Secondary Outcomes (2)
ACTN3 polymorphism
Baseline.
ACE polymorphism
Baseline.
Other Outcomes (2)
Cardiac frequency
Changes from baseline and at the end of procedure (12 days).
Systolic and Diastolic blood pressure
Changes from baseline and at the end of procedure (12 days).
Study Arms (4)
Concentric muscular work
EXPERIMENTAL4 series of 12 repetitions of concentric muscular work, with one minute rest between each repetitions, total working time of 24 minutes.
Eccentric muscular work
EXPERIMENTAL4 series of 12 repetitions of eccentric muscular work, with one minute rest between each repetitions, total working time of 24 minutes.
Concentric-eccentric muscular work
EXPERIMENTAL4 series of 12 repetitions of concentric-eccentric muscular work, with one minute rest between each repetitions, total working time of 24 minutes.
Isometric muscular work
EXPERIMENTAL6 seconds of contraction, with 20 seconds of rest with 24 repetitions, for a total working time of 12 minutes.
Interventions
For muscular contraction, the physiotherapist carried out 12 repetitions with one minute rest between series and series, total working time of 12 minutes.
Genetic polymorphism study by Polymerase Chain Reaction (PCR) to determine whether the genetic makeup of individuals for the improvement of muscular work in the results of the study.
Eligibility Criteria
You may qualify if:
- Subjects that did not present musculoskeletal lesions in the lower train at the time of the study.
- Subjects that showed a serious commitment to perform the entire muscle training.
- Subjects not subject to another type of training plan that could interfere with the results obtained from the measurement of the study variables.
You may not qualify if:
- Subjects with high blood pressure.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Universidad Francisco de Vitorialead
- Sofía Laguarta Valcollaborator
- Alberto Melián Ortizcollaborator
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Masking Details
- The participant was blinded not knowing the treatment to which he was submitted and outcome assessor responsible for collecting the results, without commenting on the group from which the patient came. Only the principal investigator knew the group to which the patient belonged.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Research Unit Director
Study Record Dates
First Submitted
May 28, 2019
First Posted
June 4, 2019
Study Start
October 1, 2015
Primary Completion
February 1, 2017
Study Completion
July 12, 2017
Last Updated
June 4, 2019
Record last verified: 2019-06