Author(s): LEVENEZ, A., CHARLOT, L., NICOL, C., DUCHÉ, P., REY, O., Institution: INSTITUT DES SCIENCES DU MOUVEMENT (ISM) AND CNRS, Country: FRANCE, Abstract-ID: 2464

INTRODUCTION:
Global meta-analyses show that university students generally report sitting for 7 to 10 hours per day, but accelerometer monitoring suggests a more accurate figure of 9.8 hours per day [1]. In the context of health promotion, the importance of monitoring physical fitness has increased, as has the number of self-administered tests. Among the influencing factors, individuals’ achievement goal profiles should be considered [2].
To test the validity of results obtained remotely in a self-administered (SA) condition, three physical fitness performances were compared to supervised (SUP), accounting for motivational profiles of sports students.
METHODS:
A total of 249 sports sciences students (aged 18 ± 0.7 years, 96 women) completed three tests from the Mouv’en Santé’s battery: sit-to-stand (STS), an unipedal stance test (UST) with four conditions (eyes open/closed on the self-selected stable/non-stable limb) and plate tapping (PT). Tests were first performed in the SA condition using the Mouv’en Santé platform, and then under individual partner and teacher supervision in the SUP condition. This online platform offers written and video instructions on how to perform in SA condition. Afterwards, participants completed the 3x2 Achievement Goals Questionnaire [3] online to determine their motivational profiles.
Non-parametric repeated measures analysis of variance compared SA and SUP conditions and their interaction with sex. Regression analyses examined associations between performance differences and achievement goal profiles. The validity of the SA tests compared to the SUP reference standard was assessed using intraclass correlation coefficients and Bland-Altman plots.
RESULTS:
Agreement was limited (ICC range: -0.017 – 0.443) while low bias but large interindividual variability were observed. No significant difference was found in the UST. PT and STS performances were significantly better in SUP than in SA condition: 10.7 ± 1.6 vs. 13.7 ± 4.5 sec. (χ²(1) = 69.5 ; p <.001) and 32 ± 5 vs. 27 ± 7 sec. (χ²(1) = 80.6 ; p <.001), respectively and independently of sex. No significant associations were observed between variations in SA and SUP conditions and motivational goals.
CONCLUSION:
Only the UST values did not differ between conditions. Better PT and STS performances in SUP were not linked to motivational profiles. However, this may reflect social facilitation whereby peer presence enhances speed-, power- or endurance-based tasks without high degree of coordination [4]. Thus, SA and SUP results cannot be directly compared, but they can be used for intra-individual monitoring if the instructions are strictly standardised and any variations are carefully interpreted.

Funding statement : Alice Levenez was supported by the National Centre for Scientific Research (CNRS).

[1] Castro et al., 2020 [2] Lochbaum et al 2023 [3] Elliot et al 2011 [4] Van Meurs et al 2024