The purpose of our study was to assess the test-retest reliability and concurrent validity of the 30 sec Sit to Stand test in a sample of adolescents. We recruited 30 male (58%) and 22 female (42%) participants (mean age = 15.77 years ± 0.46). Participants completed the 30-sec Sit to Stand and standing long jump tests on two occasions separated by…

The purpose was to evaluate reliability of measurements during drop jump (DJ) and magnitude of differences in vertical jump height (VJH) when calculated using two variables: time-in-the-air and center-of-mass velocity. Thirty-seven handball players performed three single-leg and double-leg DJs on a portable force plate during two sessions. Sixteen…

This study evaluated the agreement between Kinect V2 with AssessLink and Vicon motion capture systems in children performing the vertical jump (JL) and forward leap (Leap). Eighteen healthy children (5-17 years) performed the movements while recorded simultaneously by both motion capture systems. Spearman correlation ([rho]) and Bland-Altman were…

Device-based measures often rely on the positive relationship between walking cadence and metabolic equivalents of task (METs) to estimate physical activity. It is unknown whether this relationship remains during jogging/running. The study purpose was to investigate the relationships between METs, cadence, and step length during walking and…

The typical process for assessing inter-rater reliability is facilitated by training raters within a research team. Lacking is an understanding if inter-rater reliability scores "between" research teams demonstrate adequate reliability. This study examined inter-rater reliability between 16 researchers who assessed fundamental motor…

Subtle instructional changes that direct attentional focus can lead to changes in performance, potentially hindering a fitness assessment. An external attentional focus has been found to improve motor performance, however less is known about instructional effects on performance and the physiological response during an isometric endurance test. To…

The aim was to determine the validity and test-retest reliability of the Sit to Stand App variables (rising time, vertical velocity, and power) for measuring single-leg sit-to-stand (STS) test compared to those derived from ground reaction force data. Twenty-seven female athletes performed the single-leg STS test over three consecutive sessions…

This study analyzed the factorial structure of motor competence tests designed to evaluate motor development among adolescents, focusing on the two main dimensions of coordination and motor control. To this end, we randomly sampled 1,026 adolescents (45.3% males; 45.7% females, age 13.75 years, SD = 1.28). Participants completed the…

The objective was to verify the construct validity and test-retest reliability of the Test of Advanced Movement Skills (TAMS) with an innovative dual-outcome scoring system. Three statistical approaches--confirmatory factor analysis (CFA), exploratory structural equation modeling (ESEM), and item response theory analysis (IRT)--were applied to the…

The aims of this study were to determine the fundamental movement skill proficiency, functional movement competency and health-related physical fitness in a cohort of UK adolescents and to further examine if there were any relationships between these variables. In total, there were 178 participants aged between 11 and 13 years, 90 boys and 88…

Participation in youth sport is positively associated with physical fitness and performance. The purpose of the current study was to examine if physical fitness measures during childhood and early adolescence predicted high school sport participation. Participants included youth in the Michigan State University Motor Performance Study. Measures…

This study investigated the objectivity, reliability, and the validity of the Basketball Throw Test (BTT) as an upper-body muscular strength measure. Participants (33 boys and 32 girls; mean age = 8.75 ± 1.47) performed the BTT on 2 occasions (1-week apart), and the hand-grip test as criterion measure. The objectivity and reliability were…

Excess adipose tissue may impact the motor performance of youth. Therefore, the current study examined: (1) if adiposity influenced performance in the jump and reach and 30-yard dash; and (2) if maturation predicted motor performance. Participants (N = 267) included girls aged 8 to 16 years. Latent growth curves were used to assess changes in…

This study determined the test-retest reliability of 10 sensorimotor skills assessed by the Senaptec Sensory Station in a population of 100 (80 female, age = 21.6 ± 2.8 years) college-aged individuals (18-30 years). Separate intraclass correlation coefficients (ICCs) with a two-way mixed-effects model, absolute agreement, and 95% confidence…

The purpose of this study was to: (1) determine if process- and product-oriented measures similarly evaluate changes in motor skills across an intervention; and (2) examine the relationship between preschoolers' motor skills when assessed using process-oriented and product-oriented measures before (pretest) and after (posttest) the intervention.…