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Ability of Heart Rate Recovery and Gait Kinetics in a Single Wearable to Predict Frailty: Quasiexperimental Pilot Study

Ability of Heart Rate Recovery and Gait Kinetics in a Single Wearable to Predict Frailty: Quasiexperimental Pilot Study

The gait analyzer can process motion sensor data (including accelerometer, gyroscope, and compass data) as input for the biomechanics model. In this study, the gait analyzer’s output was validated using a gait lab equipped with a force plate and motion capture system to ensure accuracy. Cross-validation revealed an average deviation of 9% between the gait analyzer’s results and those obtained in the gait lab for key parameters such as cadence, toe-off moment, and swing power.

Reshma Aziz Merchant, Bernard Loke, Yiong Huak Chan

JMIR Form Res 2024;8:e58110

Gait Features in Different Environments Contributing to Participation in Outdoor Activities in Old Age (GaitAge): Protocol for an Observational Cross-Sectional Study

Gait Features in Different Environments Contributing to Participation in Outdoor Activities in Old Age (GaitAge): Protocol for an Observational Cross-Sectional Study

Only a few studies have examined differences in gait biomechanics between laboratory and outdoor circumstances among older people. In the studies of Schmitt et al [6] and Renggli et al [8] significant differences in several spatiotemporal parameters were found between outdoor walking and treadmill walking. On a treadmill, a decrease in walking speed, an increase in double support duration, shorter stride length, and decreased cadence were found compared to outdoor walking [6,8].

Merja Rantakokko, Emmi Matikainen-Tervola, Eeva Aartolahti, Sanna Sihvonen, Julija Chichaeva, Taija Finni, Neil Cronin

JMIR Res Protoc 2024;13:e52898

Exploring the Efficacy of a Set of Smart Devices for Postural Awareness for Workers in an Industrial Context: Protocol for a Single-Subject Experimental Design

Exploring the Efficacy of a Set of Smart Devices for Postural Awareness for Workers in an Industrial Context: Protocol for a Single-Subject Experimental Design

Thus, this study protocol aims to detect muscle fatigue related to repetitive activities and to explore a smart wear system for correcting biomechanics and reducing fatigue. The system involves the use of a wearable sensorized jacket and shoes and real-time feedback delivered to the worker. This system was created with the aim of preventing the unconscious development of awkward postures, compensatory movements, and fatigue, predisposing to injuries over time.

Mário Lopes, Susana Lopes, Mariana Monteiro, Mário Rodrigues, Aureliano Fertuzinhos, Augusto de Sousa Coelho, Paulo Matos, Abílio Borges, Teófilo Leite, Cátia Sampaio, Rui Costa, José Alvarelhão

JMIR Res Protoc 2023;12:e43637

Study of the Kinetics of the Determinants of Performance During a Mountain Ultramarathon: Multidisciplinary Protocol of the First Trail Scientifique de Clécy 2021

Study of the Kinetics of the Determinants of Performance During a Mountain Ultramarathon: Multidisciplinary Protocol of the First Trail Scientifique de Clécy 2021

transthoracic echocardiography To study the per-effort and posteffort variations of biological markers of inflammation and cardiac, renal, and neurological functions To evaluate the impact of the ultratrail on the runners’ glycemic balance To evaluate sleep before, during, and after an ultraendurance race Biomechanical exploration To study the variation of the elastic and architectural properties of the gastrocnemius-Achilles tendon complex using ultrasound elastography To study the effects of fatigue on the biomechanics

Benoit Mauvieux, Corentin Hingrand, Joffrey Drigny, Amir Hodzic, Pauline Baron, Rémy Hurdiel, Romain Jouffroy, Jean-Charles Vauthier, Mathias Pessiglione, Antonius Wiehler, Francis Degache, Sébastien Pavailler, Elsa Heyman, Mathilde Plard, Philippe Noirez, Blaise Dubois, Jean François Esculier, Anh Phong Nguyen, Joachim Van Cant, Olivier Roy Baillargeon, Benoit Pairot de Fontenay, Pierre Louis Delaunay, Stéphane Besnard

JMIR Res Protoc 2022;11(6):e38027

A Virtual Reality Game Suite for Graded Rehabilitation in Patients With Low Back Pain and a High Fear of Movement: Within-Subject Comparative Study

A Virtual Reality Game Suite for Graded Rehabilitation in Patients With Low Back Pain and a High Fear of Movement: Within-Subject Comparative Study

This study sought to compare movement biomechanics across Dodgeality, Fishality, and a standardized virtual reaching task (Reachality). Our first hypothesis was supported, as lumbar flexion velocity was greater during Dodgeality than during Fishality. While flexion velocity during Fishality was less than that during Dodgeality at each intended impact height, differences were greater for higher impact heights (requiring less motion).

Alexander T Peebles, Susanne van der Veen, Alexander Stamenkovic, Christopher R France, Peter E Pidcoe, James S Thomas

JMIR Serious Games 2022;10(1):e32027