International Journal of Health Sciences and Research

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Original Research Article

Year: 2018 | Month: February | Volume: 8 | Issue: 2 | Pages: 124-133

The Correlation between Quadriceps and Hamstrings Strength in the Dominant Leg with Decision-Making Time during Cutting Manoeuvres in Planned and Reactive Agility Tests

Yaser Hamed Alamri

MPT (Sports), Physiotherapist, Prince Sultan Military Medical City Riyadh-KSA


Study Objective: The Correlation between Quadriceps and Hamstrings Strength in the Dominant Leg with Decision-making Time during Cutting manoeuvres in Planned and Reactive Agility Tests.
Method and Measurements: Twenty-five healthy active participants took part in the study. The five Vector sensitive mats and Vector laptop were the equipment used to measure the decision-making times, which designed by the school of Healthcare Sciences at Cardiff University, while the Hand-Held Dynamometer was used to measure the isometric quadriceps and hamstrings strengths. Other equipment were used; tape measure, weight scale, height scale were used; duct tape was used to prevent the sensor mats from sliding on the floor. All participants involved in five agility drills for each planned and reactive agility tests, and then followed by three isometric quadriceps and hamstrings measures.
Results: The Intraclass correlation coefficient (ICC) calculated and revealed a moderate ICC value of Planned Decision-Making Times (PDMT) and low ICC value of Reactive Decision-Making Times (RDMT) (0.420) and (0.189), respectively. The ICC calculated for Isometric Quadriceps Strength (IQS) and Isometric Hamstrings Strength (IHS) showed fair values (0.319) and (0.402), respectively.
Conclusion: No strong relationship has revealed between all variables, with the strong reliability of each device to be considered as valid and reliable machines. More research needs to be conducted on the relationship between isometric quadriceps and hamstrings strength and between agility performances.

Key words: Correlation, Quadriceps, Hamstrings

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