Test-Retest Reliability of the Isometric Soleus Strength Test in Elite Male Academy Footballers
# BACKGROUND Currently there is no reliability data available for the isometric soleus strength test (ISST), commonly used as a monitoring tool in elite football settings. Isometric strength testing for other muscle groups, most notably the hamstrings, is utilized to identify injury risk and readin...
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| Format: | Article |
| Language: | English |
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North American Sports Medicine Institute
2022-02-01
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| Series: | International Journal of Sports Physical Therapy |
| Online Access: | https://doi.org/10.26603/001c.31047 |
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| _version_ | 1825196982656827392 |
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| author | David Rhodes Josh Jeffery Daniel Brook-Sutton Jill Alexander |
| author_facet | David Rhodes Josh Jeffery Daniel Brook-Sutton Jill Alexander |
| author_sort | David Rhodes |
| collection | DOAJ |
| description | # BACKGROUND
Currently there is no reliability data available for the isometric soleus strength test (ISST), commonly used as a monitoring tool in elite football settings. Isometric strength testing for other muscle groups, most notably the hamstrings, is utilized to identify injury risk and readiness to train/play. To profile athletes efficiently, performance practitioners require optimal measures that are reliable. The aim of this study was to investigate the test-retest reliability of the isometric strength test of the soleus and propose a standardized protocol for its use within an elite male football population.
# STUDY DESIGN
Test-retest reliability single cohort study.
# METHODS
Thirty elite male footballers (age = 22.8±5.0 years, height = 180.0±0.08 cm, weight = 70.57±4.0 kg) performed the ISST, through three maximum 3-second hold efforts with one minute rest between repetitions and 48 hours between tests, in each test. The test was performed mid-competitive season. All data bilaterally were checked for normality using the Shapiro-Wilk test before a Pearson's Correlations and Bland-Altman's analyses were performed.
# RESULTS
Test-retest reliability demonstrated high reliability for ISST bilaterally (Right: r = 0.89; Left: r = 0.79, *p*\<0.05). The standard error of measurement (SEM) (%) was 9.09 - 12.47% and minimal detectable change (MDC) was 25.19 -- 34.56 (N) for Peak Force (PF) measures of the ISST. Bilateral levels of agreement were found to be +/- 2 standard deviations (SD) of the interval of agreement bilaterally for ISST (Levels of agreement (LOA): Right: Upper 352.49 - Lower -494.76; Left: Upper 523.82 - Lower -591.30. Bilaterally no significant difference was detected between values (Right: *p=0.09, CI: -153.21-10.95*; Left: *p=0.52, CI: -139.81-72.33*).
# CONCLUSION
The results of this study demonstrate high reliability for the ISST. The ISST displays a high test-retest reliability for assessing PF characteristics of the soleus in elite male academy footballers. This test may be beneficial for performance practitioners for profiling soleus function of athletes. |
| format | Article |
| id | doaj-art-ff078c7c22e84986ba53d4b330c80c4c |
| institution | Kabale University |
| issn | 2159-2896 |
| language | English |
| publishDate | 2022-02-01 |
| publisher | North American Sports Medicine Institute |
| record_format | Article |
| series | International Journal of Sports Physical Therapy |
| spelling | doaj-art-ff078c7c22e84986ba53d4b330c80c4c2025-02-11T20:28:24ZengNorth American Sports Medicine InstituteInternational Journal of Sports Physical Therapy2159-28962022-02-01172Test-Retest Reliability of the Isometric Soleus Strength Test in Elite Male Academy FootballersDavid RhodesJosh JefferyDaniel Brook-SuttonJill Alexander# BACKGROUND Currently there is no reliability data available for the isometric soleus strength test (ISST), commonly used as a monitoring tool in elite football settings. Isometric strength testing for other muscle groups, most notably the hamstrings, is utilized to identify injury risk and readiness to train/play. To profile athletes efficiently, performance practitioners require optimal measures that are reliable. The aim of this study was to investigate the test-retest reliability of the isometric strength test of the soleus and propose a standardized protocol for its use within an elite male football population. # STUDY DESIGN Test-retest reliability single cohort study. # METHODS Thirty elite male footballers (age = 22.8±5.0 years, height = 180.0±0.08 cm, weight = 70.57±4.0 kg) performed the ISST, through three maximum 3-second hold efforts with one minute rest between repetitions and 48 hours between tests, in each test. The test was performed mid-competitive season. All data bilaterally were checked for normality using the Shapiro-Wilk test before a Pearson's Correlations and Bland-Altman's analyses were performed. # RESULTS Test-retest reliability demonstrated high reliability for ISST bilaterally (Right: r = 0.89; Left: r = 0.79, *p*\<0.05). The standard error of measurement (SEM) (%) was 9.09 - 12.47% and minimal detectable change (MDC) was 25.19 -- 34.56 (N) for Peak Force (PF) measures of the ISST. Bilateral levels of agreement were found to be +/- 2 standard deviations (SD) of the interval of agreement bilaterally for ISST (Levels of agreement (LOA): Right: Upper 352.49 - Lower -494.76; Left: Upper 523.82 - Lower -591.30. Bilaterally no significant difference was detected between values (Right: *p=0.09, CI: -153.21-10.95*; Left: *p=0.52, CI: -139.81-72.33*). # CONCLUSION The results of this study demonstrate high reliability for the ISST. The ISST displays a high test-retest reliability for assessing PF characteristics of the soleus in elite male academy footballers. This test may be beneficial for performance practitioners for profiling soleus function of athletes.https://doi.org/10.26603/001c.31047 |
| spellingShingle | David Rhodes Josh Jeffery Daniel Brook-Sutton Jill Alexander Test-Retest Reliability of the Isometric Soleus Strength Test in Elite Male Academy Footballers International Journal of Sports Physical Therapy |
| title | Test-Retest Reliability of the Isometric Soleus Strength Test in Elite Male Academy Footballers |
| title_full | Test-Retest Reliability of the Isometric Soleus Strength Test in Elite Male Academy Footballers |
| title_fullStr | Test-Retest Reliability of the Isometric Soleus Strength Test in Elite Male Academy Footballers |
| title_full_unstemmed | Test-Retest Reliability of the Isometric Soleus Strength Test in Elite Male Academy Footballers |
| title_short | Test-Retest Reliability of the Isometric Soleus Strength Test in Elite Male Academy Footballers |
| title_sort | test retest reliability of the isometric soleus strength test in elite male academy footballers |
| url | https://doi.org/10.26603/001c.31047 |
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