• measure Buccal swab

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YE_ATTEF1 YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG18
     
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    Buccal swabs are collections of buccal cell scrapings obtained by rubbing buds along the inside of the mouth.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Physical characteristics

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS2
     
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    Physical characteristics of hair and eye color were assessed.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Handedness and hand preference

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_2 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS1 YC_BS2 YE_FITNSS YE_ATTEF1 YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG12 YE_COG18 YS_TRIP age 2 YS_TRIP age 1-2
     
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    Self-reported handedness or hand preference of self or family members was assessed.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Genotyping (array)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YC_ADHMRI YE_COG18
     
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    Assessment of single nucleotide polymorphisms (SNPs) as obtained through genotyping arrays.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Heart beat perception

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF3
     
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    In Heart beat perception, participants were asked to judge their own heart rate by introspective visceral awareness, i.e. without palpitating the arterial pulse signal at wrist or neck. They judged their mean heart rate per minute over three short periods (25, 35 and 45 seconds).
    Created October 17, 2024 • Updated October 20, 2024

  • measure VU University Ambulatory Monitoring System (VU-AMS)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS YE_ATTEF3 YE_COG18
     
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    The VU University Ambulatory Monitoring System (VU-AMS) enables non-invasive ambulatory measurement of the autonomic nervous system for research purposes and can be used to measure: Heart Rate/Inter beat Interval (IBI), Heart Rate Variability (SDNN, RMSSD, IBI power spectrum: HF, LF), Respiratory Sinus Arrhythmia (RSA), Pre-Ejection Period (PEP), Left...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Handgrip

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
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    Handgrip strength in both hands was measured with a dynamometer (Baseline Digital Smedley Hand dynamometer, Fabrication Enterprises Inc., USA) with one arm at the side of the body and the elbow at a 90 degree angle.
    Created October 17, 2024 • Updated October 20, 2024

  • measure COSMED

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
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    COSMED consists of recorded breath-by-breath oxygen uptake (VO2) and carbon dioxide production (VCO2) during exercise measured with a telemetric gas exchange system (Cosmed K4b2, Cosmed Benelux, Nieuwegein, The Netherlands).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Zygosity (DNA)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YS_3 YS_5 YS_7 YS_10 YS_12 YS_DHBQ14 YS_DHBQ16 YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YE_ATTEF1 YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG18 YS_TRIP age 1-2 YS_TRIP age 3 YS_TRIP age 4 YS_TRIP age 5 YS_TRIP age 7 YS_TRIP age 10 YS_TRIP age 12
     
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    years
    Zygosity typing based on micro-satellite markers, single nucleotide polymorphisms (SNP), or variable number (short) tandem repeats (VNTRs).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Heart rate

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS3 YE_FITNSS YE_ATTEF3 YE_COG18
     
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    Heart rate is the number of times a heart beats per minute and normally ranges between 60 and 100 times for adults. Heart rate variability is the time fluctuation between heart beats.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Explosive leg strength

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
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    years
    Explosive leg strength was measured with a vertical jump test
    Created October 17, 2024 • Updated October 20, 2024

  • measure Blood pressure

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS3 YE_FITNSS YE_ATTEF3 YE_COG18
     
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    Blood pressure is the force of blood pushing against the walls of arteries as the heart pumps blood around the body. Systolic pressure is the pressure when the heart contracts and pushes blood out and diastolic pressure is the pressure when the heart relaxes and fills with blood. In adults, the systolic pressure normally ranges between 80 and 120 and the...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Anthropometry

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YS_2 YS_3 YS_5 YS_7 YS_10 YS_12 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG18 YS_TRIP age 1 YS_TRIP age 2 YS_TRIP age 1-2 YS_TRIP age 3 YS_TRIP age 4 YS_TRIP age 5 YS_TRIP age 7 YS_TRIP age 10 YS_TRIP age 12
     
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    Anthropometric measurements include height, weight, body mass index (BMI), and body circumferences.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Flexibility

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
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    years
    Physical flexibility was measured using a standard sit-and-reach box (Baseline Sit-and-reach Trunk Flexibility Box, Fabrication Enterprises Inc., USA).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Pubertal Development

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YC_ADHMRI YE_COG18 YS_TRIP age 1-2
     
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    years
    Pubertal Development was assessed through questions about breast growth, menstruation, shaving, deepening of the voice, and growth spurts.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Balance Error Scoring System (BESS)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
    0
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    years
    The Balance Error Scoring System (BESS) was used to assess balance under 3 testing stances: double leg, single leg (non-dominant leg) and tandem (dominant foot in front of the non-dominant foot in heel-to-toe fashion) on 2 surfaces (ground and foam pad). The total score was the total number of errors across the six 20-second repeated measures.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Lung function - Spirometry

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Generation R  9-10 years 13-14 years
     
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    Lung function was measured by spirometry. Measures included FEV1, forced vital capacity (FVC), FEV1/FVC ratio, and forced expiratory flow at 75% of FVC (FEF75).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Body composition and bone mineral density (Dual X energy absorptiometry)

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Generation R  5-6 years 9-10 years 13-14 years 17-18 years
     
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    years
    Dual X energy absorptiometry scans (iDXA; General Electric, formerly Lunar Corp., Madison, WI) were used to obtain measurements of bone and soft tissue for the total body and sub regions, including bone mineral content (g), fat mass (g), and lean mass (g).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Dental plaque and oral microbiome

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Generation R  13-14 years 17-18 years
     
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    years
    Dental plaque samples were collected by rubbing a cotton swab over the buccal sides of the right lower permanent molars. DNA was isolated from the dental plaque swabs.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Tanner Scale

    Study:Generation R
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Generation R  13-14 years
     
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    years
    The Tanner Scale describes, both pictorially and descriptively, the external changes that occur in the time period between the onset of puberty and the achievement of full maturity for both girls and boys. Characterizations of pubertal status are assessed by breast development in girls, genital development in boys and pubic hair growth in both. The Tanner...
    Created October 17, 2024 • Updated October 20, 2024
You can also access this registry using the API (see API Docs).