Ignite Creation Date:
2025-12-24 @ 5:23 PM
Ignite Modification Date:
2026-01-04 @ 9:36 AM
Study NCT ID:
NCT06459050
Status:
COMPLETED
Last Update Posted:
2024-06-14
First Post:
2024-06-10
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Effects of Isometric Conditioning Activity on Subsequent Jumping Performance in Volleyball Players
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D009043', 'term': 'Motor Activity'}], 'ancestors': [{'id': 'D001519', 'term': 'Behavior'}]}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'NON_RANDOMIZED', 'maskingInfo': {'masking': 'DOUBLE', 'whoMasked': ['PARTICIPANT', 'OUTCOMES_ASSESSOR']}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'CROSSOVER', 'interventionModelDescription': 'The study was performed following a randomized, double-blind crossover design, where each participant performed two experimental sessions.'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 20}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2023-04-02', 'type': 'ACTUAL'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2024-06', 'completionDateStruct': {'date': '2023-07-03', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2024-06-10', 'studyFirstSubmitDate': '2024-06-10', 'studyFirstSubmitQcDate': '2024-06-10', 'lastUpdatePostDateStruct': {'date': '2024-06-14', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2024-06-14', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2023-06-05', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Drop Jump Height', 'timeFrame': 'Immediately pre- and at 4th and 8th minute post-completion of conditioning activity.', 'description': 'Drop jump height estimated via take-off velocity performed on force plates. Participants performed 2 trials at each time-point.'}, {'measure': 'Drop Jump Contact Time', 'timeFrame': 'Immediately pre- and at 4th and 8th minute post-completion of conditioning activity.', 'description': 'Drop jump contact time was estimated via time spent on the ground between drop and jump transition performed on force plates. Participants performed 2 trials at each time-point.'}, {'measure': 'Drop Jump Reactive Strength Index', 'timeFrame': 'Immediately pre- and at 4th and 8th minute post-completion of conditioning activity.', 'description': 'Drop jump reactive strength index was estimated via jump height divided by the contact time performed on force plates. Participants performed 2 trials at each time-point.'}]}, 'oversightModule': {'isFdaRegulatedDrug': False, 'isFdaRegulatedDevice': False}, 'conditionsModule': {'keywords': ['resistance training', 'strength and conditioning', 'physical activity', 'athletic performance'], 'conditions': ['Resistance Training']}, 'referencesModule': {'references': [{'pmid': '40022177', 'type': 'DERIVED', 'citation': 'Terbalyan A, Mikolajec K, Krzysztofik M, Urbanski R, Jarosz J, Stastny P, Spieszny M. Effects of overcoming isometric unilateral conditioning activity on subsequent single-leg drop jump in elite and amateur volleyball players: a randomized crossover trial. BMC Sports Sci Med Rehabil. 2025 Feb 28;17(1):30. doi: 10.1186/s13102-025-01083-9.'}]}, 'descriptionModule': {'briefSummary': 'The pairing of high-effort exercise, called conditioning activity, with a biomechanically similar high-velocity power movement is considered a valid method to effectively facilitate muscle power adaptations. Research has mainly focused on using this method in exercises performed by both limbs, even though sports tasks are often executed through motion sequences produced by a single limb alternately. However, available studies have focused solely on the dominant leg, leaving it unclear if the effectiveness is similar in both legs and how it transfers between them. Therefore, this study aims to evaluate the immediate effects of the isometric split squat exercise on single-leg drop jump performance in volleyball players, considering their training status.'}, 'eligibilityModule': {'sex': 'MALE', 'stdAges': ['ADULT'], 'maximumAge': '35 Years', 'minimumAge': '18 Years', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* no lower-limb serious injury, including tendon or muscle tear,\n* participation in regular resistance training and competition.\n* for the elite group participants competed at the highest national volleyball league for at least two consecutive seasons.\n* for the amateur group participants competed in junior groups outside the highest league level.\n\nExclusion Criteria:\n\n\\-'}, 'identificationModule': {'nctId': 'NCT06459050', 'briefTitle': 'Effects of Isometric Conditioning Activity on Subsequent Jumping Performance in Volleyball Players', 'organization': {'class': 'OTHER', 'fullName': 'The Jerzy Kukuczka Academy of Physical Education in Katowice'}, 'officialTitle': 'Effects of Overcoming Isometric Unilateral Conditioning Activity on Subsequent Single-Leg Drop Jump in Elite and Amateur Volleyball Players', 'orgStudyIdInfo': {'id': 'PRIMUS 22/HUM/019'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'Dominant Limb Conditioning Activity', 'description': 'Each participant performed a single-leg drop jump for both the dominant and non-dominant limbs before and after completing the CA.', 'interventionNames': ['Other: Dominant Limb Overcoming Isometric Conditioning Activity']}, {'type': 'EXPERIMENTAL', 'label': 'Non-dominant Limb Conditioning Activity', 'description': 'Each participant performed a single-leg drop jump for both the non-dominant and non-dominant limbs before and after completing the CA.', 'interventionNames': ['Other: Non-dominant Limb Overcoming Isometric Conditioning Activity']}], 'interventions': [{'name': 'Dominant Limb Overcoming Isometric Conditioning Activity', 'type': 'OTHER', 'description': 'Each session involved performing 3 sets of 3-second overcoming isometric split squats with a 3-minute rest between sets as a conditioning activity performed by the dominant limb.', 'armGroupLabels': ['Dominant Limb Conditioning Activity']}, {'name': 'Non-dominant Limb Overcoming Isometric Conditioning Activity', 'type': 'OTHER', 'description': 'Each session involved performing 3 sets of 3-second overcoming isometric split squats with a 3-minute rest between sets as a conditioning activity performed by non-dominant limb.', 'armGroupLabels': ['Non-dominant Limb Conditioning Activity']}]}, 'contactsLocationsModule': {'locations': [{'zip': '40-065', 'city': 'Katowice', 'state': 'Silesian Voivodeship', 'country': 'Poland', 'facility': 'The Jerzy Kukuczka Academy of Physcial Education in Katowice', 'geoPoint': {'lat': 50.2597, 'lon': 19.02173}}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'The Jerzy Kukuczka Academy of Physical Education in Katowice', 'class': 'OTHER'}, 'collaborators': [{'name': 'Charles University, Czech Republic', 'class': 'OTHER'}, {'name': 'University School of Physical Education, Krakow, Poland', 'class': 'OTHER'}], 'responsibleParty': {'type': 'PRINCIPAL_INVESTIGATOR', 'investigatorTitle': 'PhD', 'investigatorFullName': 'Michal Krzysztofik', 'investigatorAffiliation': 'The Jerzy Kukuczka Academy of Physical Education in Katowice'}}}}