Videographic Analysis Research Articles

Immediate Effect of a Kinesiotape Bandage on Knee Mechanics during Functional Tests in Female Rugby and Football Athletes: A Pilot Study

Background: Some bandages with Kinesiotape have demonstrated some potential as means of prevention for Anterior Cruciate Ligament (ACL) injury in men. Objective: The main objective of this pilot study was to observe if a Kinesiotape bandage at the knee could potentially have an immediate preventive effect against ACL injuries by improving proprioception and balance and reducing knee valgus and anterior translation of the tibia during certain functional tests in female athletes. Materials and Methods: A cross-over clinical trial including 10 female athletes (football and rugby) was conducted, where the two lower limbs of the 10 participants (n = 20) were randomly assigned to the intervention group (IG) or to the control group (CG). A Kinesiotape bandage was placed on one knee with a tension of 75% (IG, n = 10) and another bandage on the other knee with a tension of 10% (CG, n = 10), as a placebo. Ultrasound assessment and functional tests were performed before (T1) and after (T2) bandaging according to group assignment. A videographic analysis was carried out with the ImageJ Software version 2.0. Results: A statistically significant reduction in knee valgus was observed in the Lateral Step Down test in the IG, compared to the CG (p < 0.05; η2p = 0.26) (IG-T1: 151.40 ± 11.04°; IG-T2: 157.10 ± 10.18°; versus CG-T1: 156.96 ± 5.44°; CG-T2: 158.68 ± 6.12°). In the other tests, no significant differences were found in terms of time × group interaction. Conclusions: A Kinesiotape bandage was able to reduce knee valgus in a functional test compared to a placebo bandage but was not more effective at reducing the anterior translation of the tibia or improving balance or proprioception. Based on these results, it could have a modest preventive effect against an ACL injury in female athletes.

High-speed imaging of evoked rodent mechanical behaviors yields variable results that are not predictive of inflammatory injury.

Few analgesics identified using preclinical models have successfully translated to clinical use. These translational limitations may be due to the unidimensional nature of behavioral response measures used to assess rodent nociception. Advances in high-speed videography for pain behavior allow for objective quantification of nuanced aspects of evoked paw withdrawal responses. However, whether videography-based assessments of mechanical hypersensitivity outperform traditional measurement reproducibility is unknown. First, we determined whether high-speed videography of paw withdrawal was reproducible across experimenters. Second, we examined whether this method distinguishes behavioral responses exhibited by naive mice and mice with complete Freund's adjuvant (CFA)-induced inflammation. Twelve experimenters stimulated naive C57BL/6 mice with varying mechanical stimuli. Paw withdrawal responses were recorded with high-speed videography and scored offline by one individual. Our group was unable to replicate the original findings produced by high-speed videography analysis. Surprisingly, ∼80% of variation was not accounted for by variables previously reported to distinguish between responses to innocuous and noxious stimuli (paw height, paw velocity, and pain score), or by additional variables (experimenter, time-of-day, and animal), but rather by unidentified factors. Similar high-speed videography assessments were performed in CFA- and vehicle-treated animals, and the cumulative data failed to reveal an effect of CFA injection on withdrawal as measured by high-speed videography. This study does not support using paw height, velocity, or pain score measurements from high-speed recordings to delineate behavioral responses to innocuous and noxious stimuli. Our group encourages the continued use of traditional mechanical withdrawal assessments until additional high-speed withdrawal measures are validated in established pain models.

Structure and quality of bedside teaching: A videographic analysis

Bedside teaching (BST) is a core element of medical education. In light of a reported decrease in BST, evidence on how to use BST time most efficiently should be developed. Given that little research into the tangible quality characteristics of good BST has been reported, we investigated the influence of various teacher and structural characteristics on the perceived quality of BST. We filmed and coded 36 BSTs involving 24 lecturers and 259 students. Structural characteristics of interest were: number of students and patients, overall duration, and the proportion of clinical examination. Lecturer questionnaires provided insight into teaching experience and intrinsic motivation, and student evaluations assessed the quality of BSTs in three dimensions. Correlations are reported using the Pearson r and a linear mixed model (LMM). The intrinsic motivation of lecturers was significantly positively correlated with perceived quality, but their experience was only weakly so correlated. In the LMM, a significant association was observed for the quality dimension of clinical teaching with the number of patients and the proportion of time spent on clinical examination. Based on our findings, we recommend including multiple patients in BSTs, and providing substantial opportunities for clinical examination. Regarding lecturers, motivation matters more than experience.

Videographic analysis of blink dynamics in patients with chronic progressive external ophthalmoplegia, myogenic ptosis, and facial nerve palsy using smartphone camera: A comparative analysis.

Congenital myogenic ptosis (CMP), chronic progressive external ophthalmoplegia (CPEO), and facial nerve palsy (FNP) are among the disorders which can seriously affect the blink dynamics of patients. Smartphone videography is a simple, convenient, and inexpensive way to capture eyelid movement. This study has measured and compared a variety of blink dynamics in these patients compared to healthy controls using 2-dimensional smartphone videography to enhance the utility of this method in both clinical and research settings. A total of 30 adult participants with a complaint of impaired eyelid movements including 10 with CMP, 10 with CPEO, and 10 with unilateral FNP, as well as 10 healthy controls were recruited. Using a smartphone camera with a resolution of 240 frames per second in 720 p, various blink dynamics were measured. All case groups had significantly lower values of peak and average closing velocities, average opening velocity, and palpebral aperture and significantly higher values of eyelid closing duration, compared to controls. FNP participants also had significantly lower values in the full blink rate and peak opening velocity (POV) measures, and CPEO patients showed significantly lower values in the POV. Other measures were not statistically significantly different compared to healthy controls. Our results indicated that all patients with CMP, FNP, and CPEO had different blinking dynamics compared to healthy controls, which is consistent with previous studies. Smartphone videography has achieved sufficient resolution and frame-rate to provide valuable information and anatomic details for clinical and research purposes. Further studies could utilize smartphone videography for further investigation and confirmation of the methodology in various conditions.

Extra Local: Extras as Actors in <i>Breaking Away</i>

"Extra Local" interweaves cumulative and recursive approaches to videographic analysis in order to examine modes of performance in a brief sequence shot in Breaking Away (1979). Multiple viewings of the clip direct attention to distinctions on a continuum of acting and not-acting. Cumulative multiscreen techniques contextualize the scene in director Peter Yates’ career, the history of postwar realism, and the local experience of the film in relation to the performances of local extras.

Escape response kinematics in two species of tropical shark: short escape latencies and high turning performance.

Accelerative manoeuvres, such as fast-starts, are crucial for fish to avoid predation. Escape responses are fast-starts that include fundamental survival traits for prey that experience high predation pressure. However, no previous study has assessed escape performance in neonate tropical sharks. We quantitatively evaluated vulnerability traits of neonate tropical sharks by testing predictions on their fast-start escape performance. We predicted (1) high manoeuvrability, given their high flexibility, but (2) low propulsive locomotion owing to the drag costs associated with pectoral fin extension during escape responses. Further, based on previous work on dogfish, Squalus suckleyi, we predicted (3) long reaction times (as latencies longer than teleosts, >20 ms). We used two-dimensional, high-speed videography analysis of mechano-acoustically stimulated neonate blacktip reef shark, Carcharhinus melanopterus (n=12), and sicklefin lemon shark, Negaprion acutidens (n=8). Both species performed a characteristic C-start double-bend response (i.e. two body bends), but single-bend responses were only observed in N. acutidens. As predicted, neonate sharks showed high manoeuvrability with high turning rates and tight turning radii (3-11% of body length) but low propulsive performance (i.e. speed, acceleration and velocity) when compared with similar-sized teleosts and S. suckleyi. Contrary to expectations, escape latencies were <20 ms in both species, suggesting that the neurophysiological system of sharks when reacting to a predatory attack may not be limited to long response times. These results provide a quantitative assessment of survival traits in neonate tropical sharks that will be crucial for future studies that consider the vulnerability of these sharks to predation.

Impact of Cost Conversations During Clinical Encounters Aided by Shared Decision-Making Tools on Medication Adherence

ObjectiveTo investigate the impact of cost conversations occurring with or without the use of encounter shared decision-making (SDM) tools in medication adherence. Patients and MethodsUsing a coding scheme that included the occurrence and characteristics of cost conversation, we analyzed a randomly selected sample of 169 video recordings of clinical encounters. These videos were obtained during the conduct of practice-based randomized clinical trials comparing care with and without SDM tools for patients with diabetes, osteoporosis, and depression. Medication adherence was described in 2 ways: as a binary (yes/no) outcome, in which the patient met at least 80% adherence, or as a continuous variable, which was the percent of days that the patient adhered to their medication. The secondary analysis took place in 2018 from trials that ran between 2007 and 2015. ResultsMost patients were White (155, 93.4%), educated (104, 63.4% completed college), middle-aged (mean age, 58 years), female (104, 61.5%), and from diabetes (86, 50.9%), depression (43, 25.4%), and osteoporosis (40, 23.7%) trials. Cost conversations occurred in 119 clinical encounters (70%) and were more frequent in those encounters in which SDM tools were used (P=.03). Furthermore, 97 (57.4%) of the participants reported more than 80% medication adherence and 70.3±29.34 percentage of days with adherent medication of 70 days. In the multiple regression model, the only factor associated with adherence (binary or continuous) was the condition of the trial in which people participated. For the participants who had cost conversations, the use of an SDM tool, their sex, the nature of cost conversation (direct or indirect), the nature of cost concerns (treatment or patient issue), and the clinician-offered strategies (yes or no) were not associated with adherence. ConclusionIn this videographic analysis of SDM practice-based clinical trials, cost conversations were not associated with the general measures of medication adherence. Future studies should assess whether a tailored cost conversation intervention would impact the cost-related nonadherence among patients.

Impact of Rehabilitation on Gait Kinematic following Grade II Anterior Cruciate Ligament Injury among Wrestlers.

Background Anterior cruciate ligament (ACL) injuries are among the most common injuries in wrestling. Even though there are several studies available in the literature about the changes in gait kinematics following ACL injury and ACL reconstruction surgery, none of these studies investigated the changes in gait kinematics following nonoperative rehabilitation protocol. So, this study is aimed at investigating the changes in gait kinematic following a supervised ACL rehabilitation protocol among wrestlers following a grade II ACL injury. Methods Fifteen male professional wrestlers with recent grade II ACL injury with mean age: 19.93 ± 2.01 years, weight: 72.33 ± 7.46 kg, and height: 173 ± 4.95 cm volunteered for this single-arm pretest-posttest study. Kinematic parameters during walking pre- and postrehabilitation were examined by two-dimensional (2D) video graphic analysis. Paired sample t-test and Cohen's d were used to determine significant differences and effect size of segmental angle, cadence, step length, stride length, etc. Results Injured wrestlers after the rehabilitation program walked significantly faster and had a 10.13% higher cadence, a 10.89% faster gait velocity, a 05% greater step length, and a 4.69% longer stride length, compared with a prerehabilitation program of injured wrestlers. Furthermore, joint angles at the hip, knee, and ankle were significantly different between pre- and postrehabilitation. Conclusion Research findings suggest that rehabilitation programs significantly impact the gait pattern of injured wrestlers. A 19-week supervised rehabilitation protocol can increase gait velocity and related parameters in ACL injured wrestlers.

Temporality, Language and Body in Collaborative Remembering: a Videographic Study.

Collaborative remembering involves bringing a story shared by a group of people back to the present. In this context, collaborative remembering has been studied following cues such as linguistic prompts that contribute to elicit memory in shared contexts. This study looks into collaborative remembering cues beyond their strictly linguistic character, which from a co-phenomenological standpoint comprises temporality, corporality and meaning making. A two-stage videographic analysis was required to undertake the study: (1) students partaking in meaningful interaction, and a (2) collaborative remembering instance, where two sets of three students met again, ten days after. Qualitative data analysis was undertaken, following Karl Bühler's organon model, simultaneously looking at bodily and temporal aspects, attending particularly to bodily motion coordination. Results show a pre-eminence of the appellative dimension alongside a prevalence of complementary over simultaneous patterns in collaborative remembering. A central aspect in this study is how collaborative remembering - including linguistic expressions- emerges as a coordinative phenomenon, where participants provide a joint account of remembered situations as a single being with a temporality of its own. These traits are discussed following a co-phenomenological approach to intersubjectivity.

Effect of Teaching Method on Exercise Execution in Adolescents' Use of Outdoor Fitness Equipment.

The use of outdoor fitness equipment (OFE) is an effective strategy to promote physical activity. The equipment normally includes information panels with phrases and images describing appropriate exercises. However, as using this equipment inappropriately is a potential problem, it is important to find an optimal unsupervised instruction method for correct exercise execution. Our objective in this study was to determine which of several exercise prescription methods, without direct professional supervision, might best instruct adolescents to correctly engage in upper limb motor execution on outdoor flexion-extension equipment. A total of 54 adolescents from a middle socioeconomic level in northwest Spain participated in this descriptive and quasi-experimental study. We randomly assigned members of this convenience sample into three groups who received either video instruction, instruction via images or written panel instructions. We used observational methodology in videographic analysis to evaluate the mistakes participants made in motor execution with each instructional method. We utilized different analytic techniques from observational methodology: statistical analyses (means, standard deviation, confidence intervals, ANOVA, etc.) and detecting T-Patterns with Theme and polar coordinate analysis using HOISAN. Participants who relied on video instructions committed fewer errors than those who relied on panel instructions. The video method prevented loss of information that occurred when instructional images were used. We suggest including a QR code on outdoor fitness equipment in open-air parks to permit users to download an explanatory video to their mobile phones.

A videographic case study analysis of improvement in motor coordination in a pre-adolescent boy through the intervention of therapeutic eurythmy exercise

A videographic case study analysis of improvement in motor coordination in a pre-adolescent boy through the intervention of therapeutic eurythmy exercise

Blue governmentality: Elemental activism with conservation technologies on plundered seas

For the Sea Shepherd Conservation Society, the atmosphere and ocean are channels for movement that are to be used and overcome in direct actions to protect marine environments. To accomplish these missions, they deploy a fleet of ships, helicopters, and drones that intervene to stop violations of conservation laws. In this way, oceanic elements—waves, winds, icebergs, and storms—mediate conservation and conservation technologies. The elements and the technologies that Sea Shepherd exploit both inhibit and make conservation possible.This paper argues that the drone is an exteriorization of the human body whose liberatory potentials are mediated by the atmosphere and ocean. Through ethnographic, textual, and videographic analysis, this article explores blue governmentality—how the azure sky and cyan ocean and the technologies that flow through these elements at once afford and constrain the control of biopower. Understanding blue governmentality means appreciating how the elements mediate movement, communication, and life itself. It requires comprehending how technologies emerge from the body, extend political intentionality, work across the elements, and network with other technologies. This article challenges conservation geography to see governmentality not as a totalizing force but one that is tempered by elemental mediations, technological affordances, and human fallibility.

Effect of Compelled Body Weight Shift (CBWS) Therapy in Comparison to ProprioceptiveTraining on Functional Balance, Gait, andMuscle Strength Among Acute Stroke Subjects.

Background:The majority of poststroke individuals tend to exhibit reduced loading over the paretic lower extremity, leading to increased postural sway, and gait asymmetry predisposing to a higher number of falls. Compelled body weight shift (CBWS) therapy is an innovative method aimed to force body weight shift toward the paretic extremity. Proprioceptive training (PT) is another method that improves balance ability contributing to the increase in muscle activity. Both the CBWS and PT have been shown to improve the quality of life in stroke subjects.Purpose:The aim of this study is to compare the effects of CBWS therapy and PT in improving balance, kinematic gait parameters, and muscle strength among acute stroke patients.Methods:Thirty subjects were nonrandomly divided into two groups where both groups received routine physiotherapy for two weeks in addition to which the CBWS group incorporated a 15 mm platform placed under the unaffected extremity while the PT group included incorporated proprioceptive exercises on the ground and foam mat. Functional balance, functional mobility, videographic analysis of degrees of hip flexion, knee hyperextension, and ankle dorsiflexion along with gait speed and satiotemporal gait parameters were obtained.Results:The pre-post analysis within both groups revealed statistically significant improvement in all parameters except for the kinematic parameters of gait. However, no statistically significant difference was observed between the CBWS and PT groups.Conclusion:CBWS can be used as an alternative to PT in the rehabilitation of stroke patients concerning balance and gait. CBWS provided during active treatment sessions results as effective as those seen as a result of all-day therapy.

Beyond hemoglobin A1c: a videographic analysis of conversations about quality of life and treatment burden during clinical encounters for diabetes care.

Diabetes care has largely focused on reducing the risk of complications by achieving hemoglobin A1c (HbA1c) targets; yet, whole-person care may be more effective and desirable. We sought to determine the nature of discussions about quality of life, burden of treatment, hypoglycemia, sexual function, and social support during diabetes-focused clinical encounters. We analyzed 41 previously recorded clinical encounters with patients with type 2 diabetes from the control arms of practice-based trials of shared decision-making. Two coders evaluated videos for discussions about aspects of life with diabetes: quality of life, burden of treatment, hypoglycemia, sexual function, and social supports. When an aspect was raised, coders evaluated the nature of the conversation, clinician responses, and time spent on discussing the aspect. Median length of the encounter was 15 min, 6 s (IQR: 11:16-20:23 min). Overall, 35 of 41 encounters (85.4%) included some discussion of quality of life (58.5%), burden of treatment (51.2%), social support (2.4%), or hypoglycemia (9.8%). Sexual function was not discussed. On average, 4.5% (1.4-5.5%) of the encounter time involved conversations about HbA1c, whereas 15.0% (0-25%) of the encounter time was spent on some aspect of quality of life, burden of treatment, social support, or hypoglycemia. If a topic related to quality of life was raised, clinicians most often responded by acknowledging patient's concern without providing a solution (45.8%). A significant part of the patient-clinician encounter involves discussion of quality of life and burden of treatment, but clinicians rarely address these issues by providing solutions.

864-P: Treatment Burden and Quality of Life Conversations during Clinical Encounters: A Videographic Analysis

Aim: Patients with diabetes mellitus (DM) experience significant burden of disease and poorer quality of life compared with patients without diabetes. Yet, data on how these aspects are raised, discussed, and addressed during clinical encounters are sparse. We aimed to analyze the nature of discussions about quality of life (QoL), treatment burden (TB), hypoglycemia, sexual function, and social support during clinician-patient encounters focused on diabetes care. Methods: A total of 41 previously recorded patient-clinician encounters were used for videographic analysis. Encounters were recorded primarily from family medicine and internal medicine clinics, and all patients had a diagnosis of DM. Two coders analyzed the videos for discussions about QoL, TB, hypoglycemia, sexual function, and social support using an a priori developed codebook that defined the domains. When a topic was raised, coders evaluated the nature of the conversation, provider response, time spent on topic, and any solutions proposed by the clinician. Results: Of the 41 videos analyzed, 85.4% included some discussion regarding QoL (58.5%), TB (51.2%), social support (9.8%) or hypoglycemia (2.4%). Sexual function was not brought up in any of the encounters. On average, 15% of the clinical encounter time was spent on QoL, TB, social support, or hypoglycemia. In contrast, 4.5% of the encounter focused on HbA1c. When an aspect arose within the encounter, clinicians acknowledged the patient’s concern without providing a solution in 45.8% of the cases. Conclusion: Consistent with patient experiences, we found that a significant portion of clinical encounters conversations were devoted to QoL and TB, with a greater amount of time spent on these than HbA1c goals. Yet, when these topics arose during encounters, solutions were seldom provided. Sexual dysfunction, a common complication of DM, was not discussed in our sample. Disclosure S. Haider: None. O. M. El kawkgi: None. J. Clark: None. M. Breslin: None. K. Boehmer: None. V. M. Montori: None. K. J. Lipska: None.

Chronicling the Boko Haram Decade in Nigeria (2010-2020): distinguishing factions through videographic analysis

ABSTRACT Boko Haram videos are among the only windows into the group leadership’s ideology. However, previous studies of Boko Haram videos treated the group monolithically and neither distinguished between internal factions nor analyzed cinematographic settings in each faction’s videos. At a time when the two groups known as Boko Haram–Islamic State in West Africa Province (ISWAP) and Jamaat Ahlussunnah lid-Dawa wal-Jihad (JAS)–rival each other and combat Nigerian and subregional military forces, this article argues it is imperative to examine factions’ contrasting self-presentations in videos. While one faction led by Abu Musab al-Barnawi revealed combat skill and lectured about an Islamic state, another faction led by Abubakar Shekau revealed veneration of Shekau, masses of worshippers in group territories, and imposing sharia punishments. Even when these factions were nominally unified, they still produced media separately and competed to control communications to Islamic State. Another Boko Haram breakaway group called Ansaru also influenced Boko Haram videos after some members reintegrated into Abu Musab al-Barnawi’s faction. This article demonstrates how in jihadist groups the one wielding the camera also wields power and how jihadist videos can facilitate understanding a group’s internal dynamics.

Videographic Analysis of Blink Dynamics following Upper Eyelid Blepharoplasty and Its Association with Dry Eye

Background:This study was undertaken to characterize the effects of upper eyelid blepharoplasty on blink dynamics and to evaluate the hypothesis that changes in blink dynamics following blepharoplasty are associated with postoperative dry eye.Methods:The voluntary blink of 14 eyes of 7 patients with dermatochalasis undergoing upper eyelid blepharoplasty was recorded with a high-speed camera preoperatively and 6–8 months postoperatively, alongside a group of 11 controls. The images were analyzed for palpebral aperture, blink duration, and maximum velocity during opening and closing phases. Patients undergoing blepharoplasty were assessed for dry eye symptoms pre- and postoperatively at 6–8 months using the ocular surface disease index score.Results:Despite intraoperative orbicularis oculi resection, there was no significant compromise of blink duration or maximum velocity of eyelid opening or closure post-blepharoplasty. Postoperatively, patients had an increase in palpebral aperture compared with both preoperatively (8.71 versus 7.85 mm; P = 0.013) and control groups (8.71 versus 7.87 mm; P = 0.04). Postoperatively at 6–8 months, there was an increase in dry eye symptoms in 6 of 7 patients compared with preoperatively (ocular surface disease index, 16.6 versus 12.5; P < 0.05). There was no positive correlation between the increase in palpebral aperture and the increase in dry eye symptoms (r = –0.4; P = 0.30).Conclusions:Using modern videographic technology, this study demonstrates that upper eyelid blepharoplasty results in an increase in resting palpebral aperture but has no effect on dynamic blink parameters. Changes in palpebral aperture or blink dynamics are unlikely to be the cause of dry eye syndrome following blepharoplasty.

Discursive and Non-discursive Symbolization during couple's Conflict.

The purpose of this article was exploring the role of discursive and non-discursive symbolization - specifically gestures - in the negotiation of differences in couples´ interactions. Five married heterosexual couples were invited to hold a conversation about an unsolved problem in their relationship. A videographic analysis was carried out to explore gestures in dialogical sequences and Microgenetic Semiotic Analysis (ASM) was conducted. The results showed that gestures complemented verbal signs as semiotic devices in the regulation of meaning construction and differences in negotiation, displaying strategies for facing and avoiding conflict, as well as resources for undergoing tension dealing with personal objectives and emotional difficulties; Its role is discussed as preparation of the verbal communicative expression, as devices for self-regulation and access to tension relief. Further, the discussion addresses their function as paths for encounter, mutuality and closeness.

Implementation and Validation of a Potential Model for a Moored Floating Cylinder under Waves

A three degrees-of-freedom model based on the potential flow theory was implemented to represent the motion of a slender cylindrical buoy under waves. The model calibration was performed by means of the comparison between the model results and the experiments performed at the Laboratory of Hydraulic Engineering of the University of Bologna (Italy). The dynamics of the floating cylinder, placed at the mid-section of the wave flume and anchored at the bottom through a mooring system of four catenaries, were obtained through videography analysis, providing surge, heave and pitch motions. The implementation of the mathematical model consisted of two main parts: The first has been developed in the frequency domain by applying NEMOH to assess the hydrodynamic coefficients of the object, i.e., the excitation, radiation and added mass coefficients; then, the used mooring system was included in the time-domain model, solving the motion of the floating cylinder, by calibrating the mooring coefficients by comparing the results with the data. The simplicity of the implemented model is a very important feature, and it should be used as a preliminary study to understand the response of moored floating cylinders and others floating bodies under waves.

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

The study aims were to analyze the reliability and validity of the GymAware™ linear position transducer's velocity and power measures during the sit-to-stand, compared with the Dartfish 2D videography analysis, and to assess the relationship of age and handgrip strength with velocity and power in 48 older men and women (77.6 ± 11.1years). The results showed excellent agreement between GymAware- and Dartfish-derived sit-to-stand velocity (intraclass correlation coefficient2-1 = .94 and power intraclass correlation coefficient2-1 = .98) measures. A moderate and negative relationship was found between age and velocity (r = -.62; p < .001) and age and power (r = -.63; p < .001). A moderate and positive relationship was found between handgrip strength and velocity (r = .43; p = .002) and handgrip strength and power (r = .54; p < .001). The results show the GymAware velocity and power measures during the sit-to-stand in older adults to be reliable and valid.