Clinical Assessment of Hamstring Injury and Function

Schmitt, Brandon M; Wollin, Martin; Tyler, Timothy F.; Whiteley, Rod; Thorborg, Kristian

doi:10.1007/978-3-030-31638-9_9

Cited by 6 publications

(2 citation statements)

References 78 publications

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“…9 The testing position in the isokinetic machine in a lengthened position could be mimicked with a hand-held dynamometer as proposed by Schmitt, Tyler, and McHugh. 10…”

Section: Introductionmentioning

confidence: 99%

Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry

Kristiansen,

Eddy,

Magnusson

2024

International Journal of Sports Physical Therapy

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Background and Purpose Hamstring strength testing is crucial in assessing this important muscle group during rehabilitation and injury prevention. The purpose of this study was to evaluate the reliability and validity of measuring strength in a maximally lengthened position using a handheld dynamometer (HHD) compared to isokinetic testing. Methods Twenty healthy and active participants were recruited, and isometric strength testing was performed both on the Biodex machine and isometric end-range hamstring testing with the HHD on two occasions. Results Significant strong correlations (r= 0.87, p < 0.0001) were found between strength testing on the Biodex machine and the HHD for both the right and left sides. Bland-Altman plots demonstrated agreement between the two measurements. Excellent intra-rater reliability (ICC= 0.91-0.93) and moderate to good inter-rater reliability (ICC = 0.71-0.83) for the HHD test was demonstrated. Conclusions The HHD provides a reliable and valid alternative to isokinetic testing for assessing hamstring strength in a maximally lengthened position. This assessment can be valuable in monitoring rehabilitation progress and detecting deficits before and after returning to play. The HHD is an accessible and cost-effective option for assessing hamstring strength at long lengths in a clinical setting. Level of evidence 3

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“…9 The testing position in the isokinetic machine in a lengthened position could be mimicked with a hand-held dynamometer as proposed by Schmitt, Tyler, and McHugh. 10…”

Section: Introductionmentioning

confidence: 99%

Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry

Kristiansen,

Eddy,

Magnusson

2024

International Journal of Sports Physical Therapy

View full text Add to dashboard Cite

show abstract

“…24 Other authors have also corroborated or noted the correlation between hamstring flexibility and risk of injury. 5,25,26 However, solid consensus in the literature regarding the potential etiological factors related to hamstring injury does not exist. Authors have reported that muscle strength imbalances and flexibility were only weak factors for hamstring injury.…”

Section: Introductionmentioning

confidence: 99%

Isokinetic Assessment of Knee Flexor and Extensor Strength and Lower Extremity Flexibility Assessment of an NCAA Division III Men’s Soccer Team

Perkins

Canavan

2023

International Journal of Sports Physical Therapy

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Background Strength imbalances and flexibility deficits of the hamstrings and hip flexors have been identified as potential risk factors for hamstring injuries, but research on athletes at the Division III level are limited, potentially due to a lack of resources and technology. Purpose The purpose of this study was to conduct isokinetic and flexibility assessments to screen male soccer athletes at risk of sustaining a hamstring injury. Study Design Observational cohort Methods Standardized isokinetic testing of concentric muscle performance, measured by peak torque of the quadriceps and hamstrings and hamstring-to-quadriceps ratios, was conducted using a Biodex isokinetic dynamometer at speeds of 60 and 180°/sec. Additionally, the Active Knee Extension (AKE) test and the Thomas test were performed bilaterally to objectively measure flexibility. Paired sample t-tests were used to compare left and right lower extremities for all outcomes, with the level of significance set at p<0.05. Participants were ranked for risk and given a set of exercises sourced from the FIFA 11 Injury Prevention Program. Results At 60°/sec, the mean PT/BW bilateral deficit was 14.1% for extension and 12.9% for flexion. At 180°/sec, the mean deficit was 9.9% for extension and 11.4% for flexion. The team’s average for left and right H:Q ratios for each speed were 54.4 and 51.4 at 60°/sec and 61.6 and 63.1 at 180°/sec, respectively. The team’s average AKE range of motion was 158° for the left leg and 160° for the right leg. The mean Thomas test measurements were 3.6° away from the neutral position on the right and 1.6° on the left, with nine positive tests. There were no statistically significant differences between left and right knee extension or flexion PT/BW or H:Q ratios at either speed. There was no significant difference between left and right AKE measurements (p=0.182). Conclusion The results of this screening suggest that isokinetic testing and flexibility testing may be useful to identify non-optimal strength ratios and flexibility deficits in male collegiate soccer players. The benefits of this research have direct implications, as participants received both their screening data and a set of exercises aimed to help decrease their injury risk, in addition to the offering data that is useful for determining what normative values for flexibility and strength profiles might look like for Division III male soccer players. Level of Evidence Level 3

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The Single Leg Bridge Test (SLBT) as a field test to measure hamstring strength in young footballers

et al. 2021

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Clinical Assessment of Hamstring Injury and Function

Cited by 6 publications

References 78 publications

Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry

Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry

Isokinetic Assessment of Knee Flexor and Extensor Strength and Lower Extremity Flexibility Assessment of an NCAA Division III Men’s Soccer Team

The Single Leg Bridge Test (SLBT) as a field test to measure hamstring strength in young footballers

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