Comparison of Muscle Energy Technique vs Static Stretch in Vertical Jump of Basketball and Volleyball Player

Immediate Effects of Post-isometric Relaxation and Static Stretching on Quadriceps Muscle During Vertical Jump in Volley Ball and Basketball Players

A randomized control trial study was conducted in Islamic International University Islamabad from 1st August 2017 to 31st January 2018 according to the set criteria. A total number of 29 athletes age between 18-35 and playing as part time/ domestic level included in this study. Data were divided into experimental group (n=15) and control group (n=14) by random sampling technique. Post isometric relaxation technique was used in experimental group and static stretching was given in control group. Baseline reading was taken before intervention and post intervention reading taken immediately after application of intervention. Data analyzed through SPSS 20.

Study Overview

• Status: Completed
• Conditions: Healthy
• Intervention / Treatment: Other: Muscle Energy Technique; Other: Static Stretch

Detailed Description

Vertical jump is defined as the ability of athlete to elevate off the ground from standstill.There are two types of vertical jump which re squat vertical jump and vertical stop jump. There was a strong correlation between maximal strength in half squats and sprint performance and jumping height.

Muscle energy technique(METS) is the procedure which involves voluntary contraction of muscle in specific direction with different angles against a counterforce applied by clincian.METS is used to enhance strength of group of muscle, increase afferent input to facilitate reflexive stabilization and increase endurance in coordinated movement patterns.

Athletes perform dynamic stretching before sports involvement. Study shows that three 30 seconds stretch enhance muscle length immediatley after stretching.

A study conducted in 2003 to see the effects of muscle energy technique on hamstring extensibility, the conclusion of this study that muscle energy technique produced an immediate increase in passive knee extension.

A study conducted on immediate effect of two muscle energy techniques on quadriceps muscle during vertical jump. The study suggests concentric muscle energy technique on quadriceps muscle is the most appropriate technique to potentiate height jump performance and stretch-shorten cycle function in counter-movement jump.

Athletes ususully perfrom stretching exercises in warm up before involvement to sports.Study suggest that dynamic stretching is more suitable for use as part of warmup in young athletes. Athletes invlve in high intensity exercise demand stretch shorten cycle, stretching may be important for injury prevention. Stretching also reduce the peak torque and mean power output.

• Study Type: Interventional
• Enrollment (Actual): 29
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Pakistan
  • Federal
    • Islamabad, Federal, Pakistan, 44000
      • Riphah International University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 35 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Male

Description

Inclusion Criteria:

• Athletes (volley ball and basketball players) playing at part time/domestic level.
• Athletes age between 18-35 Years.

Exclusion Criteria:

• Athletes having history of sprain or strain in lower limbs within last 6 months.
• Athletes having any neuro-musculoskeletal, cardiovascular pathology

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Supportive Care
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Muscle Energy Technique; Post isometric relaxation technique was used in experimental group	Other: Muscle Energy Technique; In experimental group, post-isometric relaxation technique has given to the athletes. The position of athlete was prone and the involved group of muscle was quadriceps. Firstly end range of the quadriceps muscle group assess and guide the athlete to put 20% of their maximum voluntary contraction and physiotherapist resist the athlete and isometric contraction of quadriceps remain for 6-10 seconds
Active Comparator: Static Stretch; Static stretching was given in control group	Other: Static Stretch; Control group has treated with static stretching after the pre-assessment that includes three repetitions with duration of fifteen seconds with twenty second rest intervals on lower extremities

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Vertical Jump - Force Plates	Athletes starting position is squat position (Which is the baseline position) on the force-plates and did jump by saying jump, then Jump and sway were noted by physical therapist in seconds	Day 1
Muscle Recruitment: through Electromyography	During vertical jump athletes quadriceps muscle recruitment is noted by noting the amplitude	Day 1
30 Meter sprint	Athletes start its 30 meter sprint with maximum speed and it is used to check the maximum strength in seconds	Day 1
Ground Reaction force (flight time):- through Force plates	Athletes starting position is squat position on the force-plates and did jump by saying jump and the flight time were noted by physical therapist in newton	Day 1

Collaborators and Investigators

• Sponsor: Riphah International University
• Investigators: Principal Investigator: Imran Amjad, PhD, Riphah International University Islamabad

Publications and helpful links

General Publications

• Wisloff U, Castagna C, Helgerud J, Jones R, Hoff J. Strong correlation of maximal squat strength with sprint performance and vertical jump height in elite soccer players. Br J Sports Med. 2004 Jun;38(3):285-8. doi: 10.1136/bjsm.2002.002071.
• de Weijer VC, Gorniak GC, Shamus E. The effect of static stretch and warm-up exercise on hamstring length over the course of 24 hours. J Orthop Sports Phys Ther. 2003 Dec;33(12):727-33. doi: 10.2519/jospt.2003.33.12.727.
• Ballantyne F, Fryer G, McLaughlin P. The effect of muscle energy technique on hamstring extensibility: the mechanism of altered flexibility. Journal of Osteopathic Medicine. 2003 Oct 1;6(2):59-63
• 4. Gentil-Bécoz J, Royal S, Locatelli M, Perez GM. The immediate effects of two muscle energy techniques on quadriceps muscle during vertical jumps: A pilot Study. Journal of Bodywork and Movement Therapies. 2015 Oct 1;19(4):672-3
• Carvalho FL, Carvalho MC, Simao R, Gomes TM, Costa PB, Neto LB, Carvalho RL, Dantas EH. Acute effects of a warm-up including active, passive, and dynamic stretching on vertical jump performance. J Strength Cond Res. 2012 Sep;26(9):2447-52. doi: 10.1519/JSC.0b013e31823f2b36.
• Witvrouw E, Mahieu N, Danneels L, McNair P. Stretching and injury prevention: an obscure relationship. Sports Med. 2004;34(7):443-9. doi: 10.2165/00007256-200434070-00003.
• Cramer JT, Housh TJ, Weir JP, Johnson GO, Coburn JW, Beck TW. The acute effects of static stretching on peak torque, mean power output, electromyography, and mechanomyography. Eur J Appl Physiol. 2005 Mar;93(5-6):530-9. doi: 10.1007/s00421-004-1199-x. Epub 2004 Dec 15.

Study record dates

Study Major Dates

• Study Start (Actual): August 1, 2017
• Primary Completion (Actual): January 31, 2018
• Study Completion (Actual): February 28, 2018

Study Registration Dates

• First Submitted: June 11, 2019
• First Submitted That Met QC Criteria: June 27, 2019
• First Posted (Actual): June 28, 2019

Study Record Updates

• Last Update Posted (Actual): July 9, 2019
• Last Update Submitted That Met QC Criteria: July 5, 2019
• Last Verified: July 1, 2019

More Information

Terms related to this study

• Keywords: Muscle Energy Technique; Post isometric relaxation technique.
• Other Study ID Numbers: Riphah IU M Faheem Afzal

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No