Reliability and Validity of the Sit-to-Stand as a Muscular Power Measure in Older Adults

Sherwood, Jennifer; Inouye, Cathy; Webb, Shannon; Jenny, O

doi:10.1123/japa.2019-0133

Cited by 10 publications

(10 citation statements)

References 71 publications

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“…There is evidence that forearm position affects grip strength [ 38 ], so all participants were tested using the same position for both dynamometers. Consistent with recommendations for handgrip dynamometry by the American Society of Hand Therapy [ 39 ] and previous research [ 10 , 31 ], participants sat in a chair with the device held in their dominant hand, their arm supported on a table or other stable surface, their wrist in a neutral position, and their elbow bent at a 90° angle. This procedure has been reported to have high test-retest reliability [ 40 ].…”

Section: Methodsmentioning

confidence: 95%

Validity and reliability of handgrip dynamometry in older adults: A comparison of two widely used dynamometers

2022

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Background Among older adults, decreased handgrip strength is associated with greater risk of frailty, and loss of physical function, mobility, lean mass, and overall muscular strength and power. Frailty is also associated with sarcopenia, for which handgrip strength measurement has been recommended for diagnostic purposes. Specific cutoff points for diagnosis have been identified, but use of different devices may affect measurement. Therefore to assess validity and reliability, we compared the two most frequently used devices, the Jamar hydraulic and Smedley spring handgrip dynamometers. Methods Sixty-seven older (76.2 ± 0.9 years) men (n = 34) and women (n = 33) completed two trials of handgrip strength measurement on sequential days (T1, T2) using both devices in random order. Intraclass correlations were used to assess test-retest reliability, and Bland-Altman analysis was used to assess validity as the level of agreement between devices. Results There were significant (p < 0.001) relationships between devices at T1 (r = 0.94) and T2 (r = 0.94) and strong (p < 0.001) intraclass correlations were observed for both devices (Jamar = 0.98; Smedley = 0.96), indicating excellent reliability. However, there were significant differences between devices. Strength measured with Jamar was greater than Smedley at both T1 (27.4 ± 1.4 vs. 23.4 ± 1.1 kg, p < 0.001) and T2 (25.3 ± 1.4 vs. 21.8 ± 1.2 kg, p < 0.001). Bland-Altman analysis confirmed these differences. Subgroup analysis to evaluate the effect of gender and age indicated that in women and old-old (>75 years) participants, differences between devices were closer to zero for both measurements compared to men and young-old (65–75 years) participants. Conclusions Our results demonstrate that despite excellent reliability, there is poor agreement between devices, indicating a lack of validity. For use as a diagnostic tool, standardization and device-specific cutoff points for handgrip dynamometry are needed.

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Section: Methodsmentioning

confidence: 95%

Validity and reliability of handgrip dynamometry in older adults: A comparison of two widely used dynamometers

2022

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“…The chair stand test was used to assess leg strength and endurance. 55 , 56 The participants sat in the middle of a chair and placed their hands on the opposite shoulder crossed at the wrists while keeping their feet flat on the floor. After hearing the instructor say “Go,” the participants were asked to get up from the chair into a full standing position and then to sit down again as soon as possible for as many times possible over a 30-s period.…”

Section: Methodsmentioning

confidence: 99%

Effects of 12 weeks of aerobic exercise combined with resistance training on neurocognitive performance in obese women

Wen¹,

Liu²,

Tsai³

2022

Journal of Exercise Science & Fitness

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“…In the five STS protocols, the subjects were seated in a rigid chair (height = 40 cm), with their arms across the chest and hip, knee and ankle joints at about 90°. From this position and at the command of the 3 2 1 countdown, participants stand and sit as fast as possible for five repetitions [ 42 ]. The linear displacement was measured by the FEMD rope attached to a harness on a vest used by each participant at the time of standing ( Figure 1 ).…”

Section: Methodsmentioning

confidence: 99%

Test–Retest Reliability of Functional Electromechanical Dynamometer on Five Sit-to-Stand Measures in Healthy Young Adults

Jerez‐Mayorga

Ojeda

Chirosa

et al. 2021

IJERPH

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Background: The purpose of this study was to determine the reliability for the strength and movement velocity of the concentric phase from the five Sit-to-Stand (5STS), using three incremental loads measured by a functional electromechanical dynamometer (FEMD) in healthy young adults. Methods: The average and peak strength and velocity values of sixteen healthy adults (mean ± standard deviation (SD): age = 22.81 ± 2.13 years) were recorded at 5, 10 and 15 kg. To evaluate the reliability of FEMD, the intraclass correlation coefficient (ICC), standard error of measurement (SEM) and coefficient of variation (CV) were obtained. Results: Reliability was high for the 10 kg (CV range: 3.70–4.18%, ICC range: 0.95–0.98) and 15 kg conditions (CV range: 1.64–3.02%, ICC: 0.99) at average and peak strength, and reliability was high for the 5 kg (CV range: 1.71–2.84%, ICC range: 0.96–0.99), 10 kg (CV range: 0.74–1.84%, ICC range: 0.99–1.00) and 15 kg conditions (CV range: 0.79–3.11%, ICC range: 0.99–1.00) at average and peak velocity. Conclusions: The findings of this study demonstrate that FEMD is a reliable instrument to measure the average and peak strength and velocity values during the five STS in healthy young adults.

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Reliability and Validity of the Sit-to-Stand as a Muscular Power Measure in Older Adults

Cited by 10 publications

References 71 publications

Validity and reliability of handgrip dynamometry in older adults: A comparison of two widely used dynamometers

Validity and reliability of handgrip dynamometry in older adults: A comparison of two widely used dynamometers

Effects of 12 weeks of aerobic exercise combined with resistance training on neurocognitive performance in obese women

Test–Retest Reliability of Functional Electromechanical Dynamometer on Five Sit-to-Stand Measures in Healthy Young Adults

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