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Vol. 55. Issue 208.
Pages 128-136 (October - December 2020)
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Vol. 55. Issue 208.
Pages 128-136 (October - December 2020)
Original
DOI: 10.1016/j.apunsm.2020.08.002
Validity and reliability of the Muscular Fitness Test to evaluate body strength-resistance
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Álvaro Huerta Ojedaa,c,
Corresponding author
achuertao@yahoo.es

Corresponding author.
, Sergio Galdames Maliqueoa,b,c, Guillermo Barahona-Fuentesa
a Grupo de Investigación en Salud, Actividad Física y Deporte ISAFYD, Escuela de Educación Física, Universidad de Las Américas, sede Viña del Mar, Chile
b Universidad de Playa Ancha de Ciencias de la Educación, Valparaíso, Chile
c Centro de Capacitación e Investigación Deportiva Alpha Sports, Valparaíso, Chile
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Tables (3)
Table 1. Characterization of the participants.
Table 2. Reliability of the Muscular Fitness Test.
Table 3. Qualitative scale for the Muscular Fitness Test.a
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Abstract
Introduction

In periods of confinement, people cannot be assessed in training centers. Therefore, it is essential to have valid and reliable tests to evaluate physical capacities remotely and with their respective valuation tables.

Objective

To determine the validity and reliability of the Muscular Fitness Test (MFT) to evaluate the body strength-resistance with self-loading in healthy young adults. Secondly, to create qualitative scales to evaluate the different levels of this physical capacity.

Material and methods

489 participants performed the MFT (test), and 77 performed it twice (re-test). The MFT included 60seconds (s) of sit-ups, push-ups, deep squats, and burpees, always in that order, with a micropause of 10s. The validity of the MFT was evaluated with the final heart rate (FHR), % of the reserve HR (%) and Rating of Perceived Exertion (RPE); the reliability included the Coefficient of Variation (CV), Intra-Class Correlation Coefficient (ICC) and the standard error of the mean (SEM) (p<0.05). The qualitative scales were constructed with the percentiles ≤25: poor, ≤50: fair, ≤75: good, ≤90: very good, and >90: excellent.

Results

Participants performed 91.7±26.5 total repetitions, with a FHR of 172.7bpm (81.7%) and RPE of 8.1; CV=2.81%, ICC=0.97 and SEM=0.77 (p<0.001).

Conclusion

MFT proved to be valid and reliable to assess self-loaded body strength-resistance in healthy young adults. The creation of the MFT qualitative scales allows evaluating the level of body strength-resistance in this population.

Keywords:
Physical conditioning
Muscle strength
Young adults

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