Strengthening Effect on Hamstring's Passive Mechanical Properties

NCT03884738 | Completed DMC

• 1 other identifier: HacettepeSportsPhysio
• Study Type: interventional
• Target: 42
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study was to investigate effects of different strengthening methods on hamstring muscle group's passive mechanical properties and to investigate this effect's relation with performance changes in healthy individuals. 42 healthy sedentary male participated in this study. Passive mechanical properties and strength of hamstring and quadriceps muscles, flexibility of hamstring muscles, anaerobic explosive strength, reaction time, agility were measured. Participants randomized evenly into one of three groups; eccentric, concentric and neuromuscular electrical stimulation (NMES). After 8 weeks training period, participants were measured again.

Conditions

Sports Physical Therapy

Keywords

Muscle Tonus; Elasticity; Electric Stimulation Therapy; Physical Conditioning, Human

Outcome Measures

Primary Outcomes (1)

• Passive Mechanical Properties

  Tone, Elasticity and Stiffness evaluation. Evaluated with Myotonometer-3

  Change from baseline passive mechanical properties at 8 weeks

Secondary Outcomes (5)

• Flexibility Measurement

  Change from baseline flexibility at 8 weeks

• Muscle Strength Measurement

  Change from baseline muscle strength at 8 weeks

• Agility Measurement

  Change from baseline agility time at 8 weeks

• Anaerobic Explosive Power

  Change from baseline anaerobic explosive power at 8 weeks

• Reaction Time

  Change from baseline reaction time at 8 weeks

Study Arms (3)

Concentric

ACTIVE COMPARATOR

Leg Curl Training

Other: Concentric Exercise

Eccentric

ACTIVE COMPARATOR

Nordic Hamstring Training

Other: Nordic Eccentric exercise

Neuromuscular Electrical Stimulation

ACTIVE COMPARATOR

Stimulation Training

Other: Neuromuscular Electrical Stimulation

Interventions

Concentric Exercise OTHER

Leg Curl Machine: 1st week - 1st day is 10 maximum repeat test. 2nd week - 2 days of training - 2 sets of 6 repeats. %60 percent of maximum load. 3rd week - 3 days of training - 3 sets of 6-8 repeats. %60-80 of maximum load. 4th-8th week - 3 days of training - 3 sets of 8-12 repeats. when 3 sets of 12 achieved, load was increased with 2.5kg.

Concentric

Nordic Eccentric exercise OTHER

1. st week - 1 day - 2 sets of 5 repeats. 2. nd week - 2 days - 2 sets of 6 repeats. 3. rd week - 3 days - 3 sets of 6-8 repeats. 4. th week - 3 days - 3 sets of 8-10 repeats. 5-8th weeks - 3 days - 3 sets of 12-8 repeats. When achieved 3 sets of 12 repeats with full range, speed was increased.

Eccentric

Neuromuscular Electrical Stimulation OTHER

8 weeks, three times per week, 15 minutes of bilateral hamstring stimulation. 100 Hz. frequency, 600 microsecond duration rectangular current

Neuromuscular Electrical Stimulation

Eligibility Criteria

• Age: 18 Years - 30 Years
• Gender Eligibility Details: only male participants were accepted
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• being sedentary

You may not qualify if:

• Having knee, hip and/or back pain
• Having a cardiovascular condition/disease
• History of previous knee and/or hip surgery
• Having a diagnose of any systemic disease
• History of previous hamstring injury
• Being physically active within last year ( Regular activity at least 3 days a week and continuity of at least 2 months was accepted as being physically active)

Sponsors & Collaborators

• Hacettepe University: lead

Study Sites (1)

Hacettepe University

Ankara, 06100, Turkey (Türkiye)

Location

Related Publications (6)

• Ayala F, Sainz de Baranda P, De Ste Croix M, Santonja F. Reproducibility and criterion-related validity of the sit and reach test and toe touch test for estimating hamstring flexibility in recreationally active young adults. Phys Ther Sport. 2012 Nov;13(4):219-26. doi: 10.1016/j.ptsp.2011.11.001. Epub 2012 Jan 23.

  PMID: 23068896 BACKGROUND

• Mentiplay BF, Perraton LG, Bower KJ, Adair B, Pua YH, Williams GP, McGaw R, Clark RA. Assessment of Lower Limb Muscle Strength and Power Using Hand-Held and Fixed Dynamometry: A Reliability and Validity Study. PLoS One. 2015 Oct 28;10(10):e0140822. doi: 10.1371/journal.pone.0140822. eCollection 2015.

  PMID: 26509265 BACKGROUND

• Amiri-Khorasani M, Sahebozamani M, Tabrizi KG, Yusof AB. Acute effect of different stretching methods on Illinois agility test in soccer players. J Strength Cond Res. 2010 Oct;24(10):2698-704. doi: 10.1519/JSC.0b013e3181bf049c.

  PMID: 20168255 BACKGROUND

• Schwesig R, Koke A, Fischer D, Fieseler G, Jungermann P, Delank KS, Hermassi S. Validity and Reliability of the New Handball-Specific Complex Test. J Strength Cond Res. 2016 Feb;30(2):476-86. doi: 10.1519/JSC.0000000000001061.

  PMID: 26815176 BACKGROUND

• Mjolsnes R, Arnason A, Osthagen T, Raastad T, Bahr R. A 10-week randomized trial comparing eccentric vs. concentric hamstring strength training in well-trained soccer players. Scand J Med Sci Sports. 2004 Oct;14(5):311-7. doi: 10.1046/j.1600-0838.2003.367.x.

  PMID: 15387805 BACKGROUND

• Glaviano NR, Langston WT, Hart JM, Saliba S. Influence of patterned electrical neuromuscular stimulation on quadriceps activation in individuals with knee joint injury. Int J Sports Phys Ther. 2014 Dec;9(7):915-23.

  PMID: 25540707 BACKGROUND

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Officials

• tuzun fırat, Assoc. Prof.

  Hacettepe University

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Research Assistant

Model Details: randomization into three groups and measurement before and after intervention

Study Record Dates

• First Submitted: March 18, 2019
• First Posted: March 21, 2019
• Study Start: March 21, 2019
• Primary Completion: December 1, 2019
• Study Completion: December 1, 2019
• Last Updated: April 22, 2020

Record last verified: 2020-04

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)