This README.txt file was generated on <20250604> by ------------------- GENERAL INFORMATION ------------------- Title of Dataset: Torque- Velocity Relationship in Postmenopausal Women: CARE PROJECT Author/Principal Investigator Information Name: Jessica Rial Vázquez ORCID:0000-0003-0520-3862 Institution: University of A Coruña Address: Avenida Ernesto Che Guevara, 121, 15179 Oleiros, A Coruña Email: jessica.rial@udc.es Author/Associate or Co-investigator Information Name: Eliseo Iglesias Soler ORCID:0000-0002-1212-4188 Institution: University of A Coruña Address: Avenida Ernesto Che Guevara, 121, 15179 Oleiros, A Coruña Email: eliseo.iglesias.soler@udc.es Author/Alternate Contact Information Name: María Rúa Alonso ORCID:0000-0002-2763-2847 Institution: University of A Coruña Address: Avenida Ernesto Che Guevara, 121, 15179 Oleiros, A Coruña Email: maria.rua@udc.s Date of data collection: 20240510 Geographic location of data collection: Faculty of Sports Science (43.340664169139366, -8.358060342328947) Information about funding sources or sponsorship that supported the collection of the data: This data are part of the project PID2021-124277OB-I00, funded by MCIN/AEI/10.13039/501100011033 and by ERDF – A way of making Europe. General description: This information includes two databases containing knee extensor and elbow flexor muscle strength assessments, measured using an isokinetic dynamometer. Isometric and isokinetic tests were conducted at 30, 60, 120, 180, 240, and 300º/s and torque-velocity parameters were calculated varying in the data processing. The main aim of this study was to compare the goodness of fit and the TV parameters obtained from linear and non-linear models using different data processing in postmenopausal women, for both upper and lower limbs.This is part of a broader Project that analyzed cardiovascular responses and adaptations to resistance training in postemenopausal women. Keywords: middle-aged women, isokinetic assessment, dynamometer, goodness of fit, regression models. -------------------------- SHARING/ACCESS INFORMATION -------------------------- Open Access to data: Open Licenses/restrictions placed on the data, or limitations of reuse: Creative Commons (CC0, CC-BY, etc.). Citation for and links to publications that cite or use the data: - Links/relationships to previous or related data sets: - Links to other publicly accessible locations of the data: - Was data derived from another source? NO -------------------- DATA & FILE OVERVIEW -------------------- File list: Data Base Knee Extensión (.sav) and Data Base Elbow Flexion (.sav) Type of version of the dataset: Raw data Relationship between files: The data come from the same participants (n=16), with one file containing knee extension results and another file containing elbow flexion results Additional related data collected that was not included in the current data package: Are there multiple versions of the dataset? NO Total size: 21 KB -------------------------- METHODOLOGICAL INFORMATION -------------------------- Description of methods used for collection/generation of data: The strength of the knee extensor and elbow flexor muscles was evaluated in the dominant limb using a Humac Norm isokinetic dynamometer (Humac Norm, CSMI, Boston, Massachusetts, USA). All measurements were performed by the same researcher, and the equipment was calibrated according to the manufacturer’s specifications before each testing session. Knee extensor strength assessment Participants were seated with hips flexed at 100° and knees at 90°. To minimize positional shifts, stabilization straps were placed around the chest, pelvis, and thigh of the tested leg. The shank was secured to the dynamometer approximately 3 cm above the medial malleolus, and the mechanical axis of the lever arm was aligned with the lateral epicondyle of the knee. The range of motion (ROM) for all isokinetic contractions was set from 80° (knee flexed) to 0° (full extension). The maximal isometric contraction was performed at 60° of knee flexion, and gravity correction was applied with the knee stabilized in full extension (0°). Isokinetic testing was performed at six angular velocities: 30°, 60°, 120°, 180°, 240°, and 300°/s. Prior to each maximal effort, participants completed three incremental submaximal repetitions. After a 60-second rest, three maximal isokinetic contractions were performed at each velocity, with 30 seconds of rest between repetitions and two minutes between velocity conditions. Participants were instructed to move as quickly and forcefully as possible throughout the full ROM. Elbow flexor strength assessment Participants were positioned supine, with hips flexed at 90° and knees at 120°. Stabilization straps were applied horizontally over the shoulders, chest, pelvis, and arm of the tested limb. The elbow joint was aligned with the axis of the dynamometer, and the forearm was maintained in a neutral position. The ROM was set from 20° (near full extension) to 120° (elbow flexed). The maximal isometric contraction was performed at 90° of elbow flexion (with 0° corresponding to full extension). Isokinetic testing was conducted at the same velocities considering in knee extension. Methods for processing the data: Torque during each maximal isometric contraction was quantified as the peak value attained over a 5-second interval. The best score from the three attempts was retained for further analysis. For isokinetic evaluation, peak torque values were obtained from the best trial at each angular velocity (30°/s, 60°/s, 120°/s, 180°/s, 240°/s, and 300°/s). The TV relationship was derived for each participant based on the range of angular velocities tested and the corresponding peak torque values. Since it was observed that the dynamometer provided peak torque values even when the target angular velocity had not been reached, the TV relationship was computed using both actual (i.e., the velocity actually achieved and its associated torque; TVA) and target data (i.e., the preset velocity on the dynamometer and the reported torque; TVT). To obtain the TVA relationship for both lower and upper limbs, peak torque was identified from the portion of the contraction in which >90% of the maximum angular velocity achieved was reached during each condition. The angular velocity at which this peak torque occurred was used for analysis. If peak torque was reached at a lower velocity than in the previous condition, the data point was excluded from analysis. Additionally, the joint angle corresponding to each peak torque was recorded for all velocity conditions. For the TVT relationship, the angular velocity and peak torque values were directly extracted from the dynamometer report. Moreover we fit the data with Lineal, Polynomial and Hill models. Instrument- or software-specific information needed to interpret the data: SPSS versión 21. Describe any quality-assurance procedures performed on the data: - People involved with sample collection, processing, analysis and/or submission: - ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: [FILENAME] ----------------------------------------- DATA BASE KNEE EXTENSION Number of variables: 36 Number of cases/rows: 16 Variable List: ISOMETRIC_TORQUE Isometric torque value R2_TV_LINEAL_ACTUAL Coefficient of determination calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. MSE_TV_LINEAL_ACTUAL Mean Square Error calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. SLOPE_TV_LINEAL_ACTUAL Slope calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. F0_TV_LINEAL_ACTUAL Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. V0_TV_LINEAL_ACTUAL Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. R2_TV_POLIN_ACTUAL Coefficient of determination calculated from the Torque-Velocity relationship (Polynomial Model) considering actual velocity as independent variable. MSE_TV_POLIN_ACTUAL Mean Square Error calculated from the Torque-Velocity relationship (Polynomial Model) considering actual velocity as independent variable. F0_TV_POLIN_ACTUAL Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Polynomial Model) considering actual velocity as independent variable. V0_TV_POLIN_ACTUAL Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Polynomial Model) considering actual velocity as independent variable. X2_TPV_POLIN_ACTUAL Coefficient a corresponds to the second derivative of the function and reflects the concavity of the curve. Using actual velocity as independent variable X_TV_POLIN_ACTUAL Coefficient b reflects the linearity of the curve. Using actual velocity as independent variable R2_TV_LINEAL_TARJET Coefficient of determination calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. MSE_TV_LINEAL_TARJET Mean Square Error calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. SLOPE_TV_LINEAL_TARJET Slope calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. F0_TV_LINEAL_TARJET Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. V0_TV_LINEAL_TARJET Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. R2_TV_POLIN_TARJET Coefficient of determination calculated from the Torque-Velocity relationship (Polynomial Model) considering tarjet velocity as independent variable. MSE_TV_POLIN_TARJET Mean Square Error calculated from the Torque-Velocity relationship (Polynomial Model) considering tarjet velocity as independent variable. F0_TV_POLIN_TARJET Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Polynomial Model) considering tarjet velocity as independent variable. V0_TV_POLIN_TARJET Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Polynomial Model) considering tarjet velocity as independent variable. X2_TV_POLIN_TARJET Coefficient a corresponds to the second derivative of the function and reflects the concavity of the curve. Using tarjet velocity as independent variable X_TV_POLIN_TARJET Coefficient b reflects the linearity of the curve. Using tarjet velocity as independent variable R2_TV_HILL_ACTUAL Coefficient of determination calculated from the Torque-Velocity relationship (Hill Model) considering actual velocity as independent variable. MSE_TV_HILL_ACTUAL Mean Square Error calculated from the Torque-Velocity relationship (Hill Model) considering actual velocity as independent variable. a_TV_HILL_ACTUAL Constant reflecting the shortening heat per unit of shortening (with the dimensions of torque; Hill Model) considering actual velocity as independent variable. b_TV_HILL_ACTUAL Constant that reflects the increase in energy rate per unit of decrease in torque (with the dimensions of velocity; Hill Model) considering actual velocity as independent variable. F0_TV_HILL_ACTUAL Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Hill Model) considering actual velocity as independent variable. V0_TV_HILL_ACTUAL Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Hill Model) considering actual velocity as independent variable. R2_TV_HILL_TARJET Coefficient of determination calculated from the Torque-Velocity relationship (Hill Model) considering tarjet velocity as independent variable. MSE_TV_HILL_TARJET Mean Square Error calculated from the Torque-Velocity relationship (Hill Model) considering tarjet velocity as independent variable. a_TV_HILL_TARJET Constant reflecting the shortening heat per unit of shortening (with the dimensions of torque; Hill Model) considering tarjet velocity as independent variable. b_TV_HILL_TARJET Constant that reflects the increase in energy rate per unit of decrease in torque (with the dimensions of velocity; Hill Model) considering tarjet velocity as independent variable. F0_TV_HILL_TARJET Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Hill Model) considering tarjet velocity as independent variable. V0_TV_HILL_TARJET Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Hill Model) considering tarjet velocity as independent variable. Missing data codes: The data that could not be calculated appears as empty cells Specialized formats or other abbreviations used: - DATA BASE ELBOW FLEXION Number of variables: 36 Number of cases/rows: 16 Variable List: ISOMETRIC_TORQUE Isometric torque value R2_TV_LINEAL_ACTUAL Coefficient of determination calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. MSE_TV_LINEAL_ACTUAL Mean Square Error calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. SLOPE_TV_LINEAL_ACTUAL Slope calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. F0_TV_LINEAL_ACTUAL Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. V0_TV_LINEAL_ACTUAL Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Linear Model) considering actual velocity as independent variable. R2_TV_POLIN_ACTUAL Coefficient of determination calculated from the Torque-Velocity relationship (Polynomial Model) considering actual velocity as independent variable. MSE_TV_POLIN_ACTUAL Mean Square Error calculated from the Torque-Velocity relationship (Polynomial Model) considering actual velocity as independent variable. F0_TV_POLIN_ACTUAL Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Polynomial Model) considering actual velocity as independent variable. V0_TV_POLIN_ACTUAL Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Polynomial Model) considering actual velocity as independent variable. X2_TPV_POLIN_ACTUAL Coefficient a corresponds to the second derivative of the function and reflects the concavity of the curve. Using actual velocity as independent variable X_TV_POLIN_ACTUAL Coefficient b reflects the linearity of the curve. Using actual velocity as independent variable R2_TV_LINEAL_TARJET Coefficient of determination calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. MSE_TV_LINEAL_TARJET Mean Square Error calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. SLOPE_TV_LINEAL_TARJET Slope calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. F0_TV_LINEAL_TARJET Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. V0_TV_LINEAL_TARJET Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Linear Model) considering tarjet velocity as independent variable. R2_TV_POLIN_TARJET Coefficient of determination calculated from the Torque-Velocity relationship (Polynomial Model) considering tarjet velocity as independent variable. MSE_TV_POLIN_TARJET Mean Square Error calculated from the Torque-Velocity relationship (Polynomial Model) considering tarjet velocity as independent variable. F0_TV_POLIN_TARJET Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Polynomial Model) considering tarjet velocity as independent variable. V0_TV_POLIN_TARJET Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Polynomial Model) considering tarjet velocity as independent variable. X2_TV_POLIN_TARJET Coefficient a corresponds to the second derivative of the function and reflects the concavity of the curve. Using tarjet velocity as independent variable X_TV_POLIN_TARJET Coefficient b reflects the linearity of the curve. Using tarjet velocity as independent variable R2_TV_HILL_ACTUAL Coefficient of determination calculated from the Torque-Velocity relationship (Hill Model) considering actual velocity as independent variable. MSE_TV_HILL_ACTUAL Mean Square Error calculated from the Torque-Velocity relationship (Hill Model) considering actual velocity as independent variable. a_TV_HILL_ACTUAL Constant reflecting the shortening heat per unit of shortening (with the dimensions of torque; Hill Model) considering actual velocity as independent variable. b_TV_HILL_ACTUAL Constant that reflects the increase in energy rate per unit of decrease in torque (with the dimensions of velocity; Hill Model) considering actual velocity as independent variable. F0_TV_HILL_ACTUAL Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Hill Model) considering actual velocity as independent variable. V0_TV_HILL_ACTUAL Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Hill Model) considering actual velocity as independent variable. R2_TV_HILL_TARJET Coefficient of determination calculated from the Torque-Velocity relationship (Hill Model) considering tarjet velocity as independent variable. MSE_TV_HILL_TARJET Mean Square Error calculated from the Torque-Velocity relationship (Hill Model) considering tarjet velocity as independent variable. a_TV_HILL_TARJET Constant reflecting the shortening heat per unit of shortening (with the dimensions of torque; Hill Model) considering tarjet velocity as independent variable. b_TV_HILL_TARJET Constant that reflects the increase in energy rate per unit of decrease in torque (with the dimensions of velocity; Hill Model) considering tarjet velocity as independent variable. F0_TV_HILL_TARJET Theoretical maximum value of torque calculated from the Torque-Velocity relationship (Hill Model) considering tarjet velocity as independent variable. V0_TV_HILL_TARJET Theoretical maximum value of velocity calculated from the Torque-Velocity relationship (Hill Model) considering tarjet velocity as independent variable. Missing data codes: The data that could not be calculated appears as empty cells Specialized formats or other abbreviations used: -