Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry
# 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 dynam...
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| Format: | Article |
| Language: | English |
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North American Sports Medicine Institute
2024-03-01
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| Series: | International Journal of Sports Physical Therapy |
| Online Access: | https://doi.org/10.26603/001c.94011 |
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| _version_ | 1825197015923949568 |
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| author | Jakob Kristiansen Christina Eddy Stig Peter Magnusson |
| author_facet | Jakob Kristiansen Christina Eddy Stig Peter Magnusson |
| author_sort | Jakob Kristiansen |
| collection | DOAJ |
| description | # 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 |
| format | Article |
| id | doaj-art-6a69eb0e358c4c439396558b32d86104 |
| institution | Kabale University |
| issn | 2159-2896 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | North American Sports Medicine Institute |
| record_format | Article |
| series | International Journal of Sports Physical Therapy |
| spelling | doaj-art-6a69eb0e358c4c439396558b32d861042025-02-11T20:28:17ZengNorth American Sports Medicine InstituteInternational Journal of Sports Physical Therapy2159-28962024-03-01193Reliability and Validity of the End Range Hamstring Strength Test with Handheld DynamometryJakob KristiansenChristina EddyStig Peter Magnusson# 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 3https://doi.org/10.26603/001c.94011 |
| spellingShingle | Jakob Kristiansen Christina Eddy Stig Peter Magnusson Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry International Journal of Sports Physical Therapy |
| title | Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry |
| title_full | Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry |
| title_fullStr | Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry |
| title_full_unstemmed | Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry |
| title_short | Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry |
| title_sort | reliability and validity of the end range hamstring strength test with handheld dynamometry |
| url | https://doi.org/10.26603/001c.94011 |
| work_keys_str_mv | AT jakobkristiansen reliabilityandvalidityoftheendrangehamstringstrengthtestwithhandhelddynamometry AT christinaeddy reliabilityandvalidityoftheendrangehamstringstrengthtestwithhandhelddynamometry AT stigpetermagnusson reliabilityandvalidityoftheendrangehamstringstrengthtestwithhandhelddynamometry |