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Athletic PerformanceNCT07862192

Individualized Physical Conditioning Based on Heart Rate Variability and Workload Monitoring in Table Tennis Players

A study testing Individualized conditioning program and Standardized conditioning program in people with Athletic Performance, run by The Jerzy Kukuczka Academy of Physical Education in Katowice at 1 site in Poland.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study compares two 12-week conditioning programs in 48 competitive table tennis players. Players were randomly assigned to an experimental group or a control group. The experimental group followed an individualized conditioning program in which training intensity, volume, and content were adjusted weekly… Read more about this study

Who is it for?
Any ageHealthy volunteers can take part
Conditions the study is for
Athletic Performance
What is being tested?
Individualized conditioning program and Standardized conditioning program
Could I receive a placebo?
No, everyone receives an active treatment
How many people
48 participants
Where
1 sitePoland
Study dates
2 Jun 2025to 20 May 2026
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Minimum of 6 years of systematic, organized table tennis training
  • Minimum weekly training volume of 10 hours per week at the time of recruitment
  • Active competitive status, confirmed by current ranking points in the national federation system (minimum 1,000 ranking points)
  • No musculoskeletal injury or illness in the three months preceding the study
  • No participation in any additional structured neuromuscular or perceptual motor training program during the study period

Who cannot join

  • Current or recent (<3 months) injury affecting lower limb function
  • Use of performance altering pharmacological agents
  • Failure to complete at least 85% of prescribed training sessions
  • The study enrolled both junior and senior competitive players (observed age range 16.5-30.6 years); no additional age limits were applied. Participants were licensed members of sports clubs active in the national ranking system. Written informed consent was obtained from all participants, with additional parental or guardian consent for participants under 18 years of age.

Trial locations and contacts

1 site in 1 country.

Poland1 site
  • Academy of Physical Education in Katowice

    Katowice, 40-065

Other trials in Poland

About this study

Official title: Individualized Physical Conditioning Based on Training Monitoring in Table Tennis Players: Effects on Neuromuscular, Sensorimotor, and Competitive Performance Indicators in a 12-Week Controlled Trial

This study compares two 12-week conditioning programs in 48 competitive table tennis players. Players were randomly assigned to an experimental group or a control group. The experimental group followed an individualized conditioning program in which training intensity, volume, and content were adjusted weekly according to each athlete's morning heart-rate variability (HRV, 5-minute supine rMSSD) and acute:chronic workload ratio (ACWR) computed from session-RPE training load. On days when HRV fell more than one standard deviation below the athlete's rolling 7-day average, high-intensity components were replaced with low-intensity work. The control group followed a standardized conditioning program matched for session frequency (three integrated sessions per week for 12 weeks, no individualized monitoring feedback). The program progressed through eight phases (foundation, accumulation, deload, intensification, transition, taper I-II, peak/post-test). Both groups were assessed before and after the intervention on 24 measures of neuromuscular performance (jump height, reactive strength index, rate of force development, force asymmetry, EMG onset latency and peak amplitude), sensorimotor performance (simple and saccadic reaction time, movement time, balance), cardiorespiratory fitness (VO2max, heart-rate recovery, blood lactate), and competitive match performance (win rate, stroke accuracy, placement accuracy, rally efficiency, ball speed, national ranking points). The primary outcome is simple reaction time. The study tests whether readiness-guided individualization improves performance more than standardized conditioning. The study protocol, dataset, and analysis code are openly available in the Zenodo repository (DOI: 10.5281/zenodo.21343993).

Being tested
Individualized conditioning program, Standardized conditioning program
Keywords
table tennis, heart rate variability, individualized training, reaction time, post-activation potentiation, athlete monitoring

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Individualized conditioning programBehavioural

    Twelve week progressive conditioning intervention in which training intensity, volume, and content were adjusted weekly according to each athlete's morning heart rate variability (5 minute supine rMSSD) and acute: chronic workload ratio (ACWR) computed from session RPE training load. Components included reactive strength and plyometric training, post-activation potentiation protocols (back squat at 80-87% 1RM followed by countermovement jumps), lateral change of direction drills with progressive cognitive loading (verbal, visual, and ball feed stimuli), and perceptual motor circuits. On days when HRV fell more than one standard deviation below the rolling 7 day average, high intensity components were replaced with low intensity footwork or mobility work. Delivered as three integrated sessions per week (30-100 minutes, group mean 69 minutes).

  • Standardized conditioning programBehavioural

    Standard table tennis training consistent with the athletes' pre study routine, delivered as three sessions per week (approximately 80-85 minutes each), incorporating multi ball technical drills, match play, and general fitness conditioning (aerobic endurance and strength endurance circuits). No individualized load monitoring feedback was provided, no reactive, post-activation potentiation, or perceptual decision protocols were prescribed, and no systematic phase based overload or taper structure was applied. Content remained uniform across all 12 weeks, matched to the experimental group in session frequency.

Study groups in NCT07862192
Study groupRoleWhat they receive
HRV-/ACWR-Guided Individualized ConditioningExperimentalA 12 week progressive conditioning program in eight phases (foundation, accumulation, deload, intensification, transition, taper I-II, peak), delivered as three integrated sessions per week (30-100 min, mean 69 min), combining reactive strength and plyometrics, post-activation potentiation protocols (back squat 80-87% 1RM followed by countermovement jumps), lateral change of direction drills with progressive cognitive loading, and perceptual motor circuits. Load was individualized weekly using acute:chronic workload ratio targets per phase; morning heart rate variability (5 min supine rMSSD) modulated daily intensity, with high intensity work replaced by low intensity work when HRV fell more than 1 SD below the rolling 7 day average. Wellness was recorded daily with a 5 item questionnaire.
Receives: Behavioral: Individualized conditioning program
Control: Standardized ConditioningActive comparatorStandard table tennis training consistent with the athletes' pre-study routine: three sessions per week (approximately 80-85 min each), including multi ball technical drills, match play, and general fitness conditioning (aerobic and strength endurance circuits). No individualized load monitoring feedback, no reactive, post-activation potentiation, or perceptual decision protocols, and no phased overload taper structure; content remained uniform across all 12 weeks, matched to the experimental group for session frequency.
Receives: Behavioral: Standardized conditioning program

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Simple Reaction Time

    Simple reaction time in milliseconds, measured with a validated computerized reaction time device (stimulus to response latency). Reported as the change from baseline to week 12; a decrease denotes improvement.

    Measured: Baseline (Pre) and week 12 (Post)

Secondary outcomes (23)
  1. Saccadic Reaction Time

    Saccadic reaction time in milliseconds, assessed with a standardized oculomotor task requiring rapid gaze shifts toward a peripheral visual target. Change from baseline to week 12; a decrease denotes improvement

    Measured: Baseline (Pre) and week 12 (Post)

  2. Lateral Movement Time

    Lateral movement time in milliseconds derived from force-plate recordings. Change from baseline to week 12; a decrease denotes improvement.

    Measured: Baseline (Pre) and week 12 (Post)

  3. Time to Stabilization

    Postural stability quantified as the time to stabilization score in milliseconds from force-plate recordings. Change from baseline to week 12; a decrease denotes improvement.

    Measured: Baseline (Pre) and week 12 (Post)

  4. Y-Balance Test Composite Score

    Dynamic postural control evaluated with the Y-Balance Test, composite score as percent of limb length. Change from baseline to week 12; an increase denotes improvement.

    Measured: Baseline (Pre) and week 12 (Post)

  5. CMJ Potentiation Percentage

    Countermovement-jump potentiation percentage quantifying the acute post-activation potentiation response. Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  6. PAP Response Score

    Post-activation potentiation response score derived from heavy back squat (80-87% 1RM) followed by countermovement jumps. Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  7. Neuromuscular Readiness Index

    Composite index derived from heart rate variability, wellness questionnaire, and session RPE values. Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  8. EMG Onset Latency

    Electromyographic onset latency in milliseconds during lateral change of direction tasks, surface EMG over the vastus lateralis per SENIAM guidelines. Change from baseline to week 12; a decrease denotes improvement.

    Measured: Baseline (Pre) and week 12 (Post)

  9. Quadriceps EMG Peak Amplitude

    Peak EMG amplitude of the quadriceps in microvolts during lateral change of direction tasks. Change from baseline to week 12

    Measured: Baseline (Pre) and week 12 (Post)

  10. Lateral Countermovement Jump Height

    Lateral countermovement jump height in centimeters on a calibrated force plate. Change from baseline to week 12

    Measured: Baseline (Pre) and week 12 (Post)

  11. Single-Leg Countermovement Jump Height (Right Limb)

    Single-leg countermovement jump height of the right limb in centimeters on a calibrated force plate. Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  12. Reactive Strength Index (Drop Jump)

    Reactive Strength Index derived from drop jump performance (flight time divided by contact time). Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  13. Lateral Rate of Force Development

    Rate of force development in the lateral plane in n/s from bilateral force plate recordings. Change from baseline to week 12

    Measured: Baseline (Pre) and week 12 (Post)

  14. Lower Limb Force Asymmetry Index

    Lower limb force asymmetry index in percent from bilateral force plate recordings. Change from baseline to week 12; a decrease denotes improvement.

    Measured: Baseline (Pre) and week 12 (Post)

  15. Heart Rate Recovery at 1 Minute

    Heart rate in bpm recorded 1 minute after a standardized maximal shuttle effort; a lower value denotes faster parasympathetic reactivation. Change from baseline to week 12; a decrease denotes improvement

    Measured: Baseline (Pre) and week 12 (Post)

  16. Maximal Oxygen Uptake (VO2max)

    Maximal oxygen uptake in ml/kg/min, incremental treadmill test to volitional exhaustion with breath by breath gas analysis. Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  17. Post-Drill Blood Lactate Concentration

    Capillary blood lactate in mmol/L from the fingertip 5 minutes after a standardized high intensity technical drill sequence. Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  18. Match Win Rate

    Percentage of matches won, calculated from official competitive match results recorded during the 12 week period. Time Frame: Baseline (Pre) and week 12 (Post), from official competition records.

    Measured: Baseline (Pre) and week 12 (Post)

  19. Stroke Accuracy

    Stroke accuracy in percent, measured with a standardized multi ball target drill (30 trials). Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  20. Backhand Placement Accuracy

    Placement accuracy on the backhand in percent, determined with a 6-zone target protocol. Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  21. Rally Efficiency Index

    1. Ratio of winning rallies to total rallies during match simulation. Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  22. Ball Speed

    Ball speed in km/h, assessed with a calibrated radar gun during a standardized serve and forehand topspin sequence (5 repetitions). Change from baseline to week 12.

    Measured: Baseline (Pre) and week 12 (Post)

  23. National Ranking Points

    National ranking points recorded from the official database of the Polish Table Tennis Federation (PZTS). Time Frame: Baseline (Pre) and week 12 (Post), from the official PZTS database

    Measured: Baseline (Pre) and week 12 (Post)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Oct 2026
  2. Study start2 Jun 2025
  3. Primary completion23 Dec 2025
  4. Study completion20 May 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
48 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07862192
Sponsor's protocol ID
KB/06/2025
Other IDs
Zenodo
Status last verified
Oct 2026
First submitted
1 Oct 2026
Last updated
7 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Deidentified individual participant data for all 24 primary and secondary outcome measures at baseline and week 12, weekly monitoring data (576 athlete weeks), and session level training data (1,728 logged sessions), together with the study protocol, data dictionary, and complete statistical analysis code.

Questions about this trial

What is this clinical trial studying?

A study testing Individualized conditioning program and Standardized conditioning program in people with Athletic Performance, run by The Jerzy Kukuczka Academy of Physical Education in Katowice at 1 site in Poland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Poland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Simple Reaction Time (time frame: Baseline (Pre) and week 12 (Post)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Oct 2026.

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