STREACKER Project (Top)

Selecção de Movimentos (Movements Selection) (Top)

In the scope of the STREACKER project, a set of exercises were experimental acquired using an Optoelectronic Motion Capture System (Qualisys ProReflex 1000) to be used during the training and testing of the developed algorithms.

The list of movements to be acquired was achieved by applying the selection methodology described in supplementary materials [1]. In summary, an initial list of approximately 100 movements performed in fitness and gym workouts was created by a professional fitness trainer. After a first selection procedure, based on the inclusion and exclusion criteria defined for the study, the list was reduced to approximately 50 movements.

The movements were posteriorly rated by 10 fitness trainers with more than 5 years of expertise in the area using a Likert scale (1 to 5). The movements with a rating higher than 4 advanced for the next selection step.

A second removal procedure was done by excluding movements that could result in experimental problems during the data acquisition (occlusion or destruction of markers, occlusion of body segments, etc,). In the end, 10 movements were selected and divided in three major groups: lunges & variants, squats & variants and other movements (see list below).

Two more sequences of multiplanar movements were posteriorly included in the list for training and testing of the developed methodologies.

[1] Fernandes, F., Roupa, I., Gonçalves, S. B., Moita, G., da Silva, M. T., Pereira, J., Jorge, J., Neptune, R. R., & Lopes, D. S. (2023). Sticks and STONES may build my bones: Deep learning reconstruction of limb rotations in stick figures. Pattern Recognition Letters, 165, 138–145. https://doi.org/10.1016/j.patrec.2022.12.012

Supplementary Materials (description of the procedure for the selection of the movements list): https://www.sciencedirect.com/science/article/pii/S0167865522003804?via%3Dihub#ecom0001

Lista de Movimentos (Movements List) (Top)

Aquisição de Movimentos (Movement Acquisition) (Top)

Acquisition Information
Local:	LBL - Laboratório de Biomecânica de Lisboa
System:	Qualisys ProReflex 1000
Nr. of Cameras:	14
Acquisition Frequency:	100
Number of markers:	68
Acquisition Software:	Qualisys Track Manager 2.9 (build 1563)
Ethics Approval:	The study was submitted to the ethics committee of Instituto Superior Técnico and was approved in January 2020 (Ref. nr. 1/2020 (CEIST))

Volunteers Information
	Male	Female	Total
Number of Volunteers:	9	7	16
Age:	29.6±11.3	24.6±5.7	27.4±
Height (m):	1.78±0.07	1.60±0.08	1.7±
Weight (kg):	70.6±9.7	55.1±6.9	63.8±
IMC:	22.2±2.2	21.4±1.2	21.9±
Fitness/Exercise Professionals (%):	11±	29±	18.9±
Practice Physical Exercise (>2 days/week) (%)	33±	57±	43.5±

Each volunteer performed at least 7 repetitions of each movement. For unilateral movements, the movement was acquired for both sides (e.g.. right and left lunge, right and left curtsy lunge etc.).

Considering all the repetitions from the 16 volunteers, a total of 761 234 frames were acquired and included in the STREACKER database.

Ficheiros da Base de Dados STREACKER (STREACKER Database Files) (Top)

Information available on database files:

• Volunteer Information
• Coordinates of the Joints and Extremities
• Reference Frame of Segments - Rotatation Matrix (Order: M11 M12 M13 M21 M22 M23 M31 M32 M33)
• Reference Frame of Segments - Euler Angles (Order: z y x (in deg))
• Relative Rotation Matrix (Parent->Child) - Rotation Matrix (Order: M11 M12 M13 M21 M22 M23 M31 M32 M33)
• Relative Euler Angles (Parent->Child) - Rotation Matrix (Order: z y x (in deg))
• Joint Angles (Order: x y z (in Deg))
• Experimental data was smoothed using a 2^nd order Butterworth filter with a cutoff frequency of 6 Hz

List Of Points (Joints and Extremities)
1 - Right Toes	7 - Left Toes	13 - Spine Base (Mean HJ)	19 - Right Wrist
2 - Right Meta	8 - Left Meta	14 - Mid Spine	20 - Right Hand
3 - Right Heel	9 - Left Heel	15 - Neck	21 - Left Shoulder
4 - Right Ankle	10 - Left Ankle	16 - Top Head	22 - Left Elbow
5 - Right Knee	11 - Left Knee	17 - Right Shoulder	23 - Left Wrist
6 - Right Hip	12 - Left Hip	18 - Right Elbow	24 - Right Hand

List Of Segments
1 - Right Toe	6 - Left Hindfoot	11 - Upper Trunk	16 - Right Forearm
2 - Right Hindfoot	7 - Left Shank	12 - Neck & Head	17 - Right Hand
3 - Right Shank	8 - Left Tigh	13 - Right Scapula/Clavicule	18 - Left Upperarm
4 - Right Tigh	9 - Pelvis	14 - Left Scapula/Clavicule	19 - Left Forearm
5 - Left Toe	10 - Mid Trunk	15 - Right Upperarm	20 - Left Hand

Transferência da Base de Dados (Database Download) (Top)

If you intended to download the STREACKER database, please, fulfill the following form. The link for the download of the database files will be sent for the submitted email.

Please, cite the following papers, if you intend to use the STREACKER database for R&D purposes:
Fernandes, F., Roupa, I., Gonçalves, S. B., Moita, G., da Silva, M. T., Pereira, J., Jorge, J., Neptune, R. R., & Lopes, D. S. (2023). Sticks and STONES may build my bones: Deep learning reconstruction of limb rotations in stick figures. Pattern Recognition Letters, 165, 138–145. https://doi.org/10.1016/j.patrec.2022.12.012

Nome Próprio(*): Firstname
Apelido(*): Surname
E-mail(*): Email
Instituição(*): Institution
Ocupação(*): Occupation

Justificação para transferência dos dados(*): Please, indicate the purpose for dowloading the data
Confirmo os dados inseridos e aceito ser contactado para assuntos relacionados com o Projecto Streacker (I confirm the submitted data and I accept to be contacted for issues related with Streacker Project)
(*) - Campos de preenchimento obrigatório (Required Fields)
If you use the STREACKER database for R&D purposes, please cite the following papers: Fernandes, F., Roupa, I., Gonçalves, S. B., Moita, G., da Silva, M. T., Pereira, J., Jorge, J., Neptune, R. R., & Lopes, D. S. (2023). Sticks and STONES may build my bones: Deep learning reconstruction of limb rotations in stick figures. Pattern Recognition Letters, 165, 138–145. https://doi.org/10.1016/j.patrec.2022.12.012