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Effects of two consecutive days of different high-intensity interval training or moderate-intensity continuous training combinations on sleep quality in 13-15-year-old female rowers: a randomized crossover trial

Effects of two consecutive days of high-intensity interval training on sleep quality in adolescent female rowers

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500111649
Enrollment
Unknown
Registered
2025-11-04
Start date
2023-04-20
Completion date
Unknown
Last updated
2025-11-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sleep quality

Interventions

HIIT+MICT Group:HIIT+MICT group: Day 1: HIIT
Day 2: MICT
HIIT+HIIT Group:Two consecutive days of HIIT
HIIT protocol: 6 × 9-minute high-intensity rowing intervals at 85%–90% HRmax, with 2.5-minute passive rest between intervals.
HIIT protocol: 6 × 9-minute high-intensity rowing intervals at 85%–90% HRmax, with 2.5-minute passive rest between intervals. MICT protocol: Moderate-intensity continuous rowing at 70%–75% HRmax, last
MICT+MICT Group:MICT+MICT group: Two consecutive days of MICT
MICT protocol: Moderate-intensity continuous rowing at 70%–75% HRmax, lasting 70–90 minutes. Training duration was adjusted to match the total external work of the HIIT sessions based on preliminary p

Sponsors

Beijing Sport University
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
13 Years to 16 Years

Inclusion criteria

Inclusion criteria: 1.Female rowers aged between 13 and 16 years; 2.Regular training experience (>=3 sessions per week); 3.Pittsburgh Sleep Quality Index (PSQI) score <= 7, indicating good sleep quality in the past month; 4.No chronic illnesses, psychiatric disorders, or long-term medication use; 5.Physically healthy and free of injuries; 6.Classified as "local-level / developmental stage" athletes according to the McKay classification; 7.Voluntary participation with written informed consent obtained from both the participant and her legal guardian.

Exclusion criteria

Exclusion criteria: 1.History of sleep disorders, neurological diseases, or psychiatric conditions; 2.Presence of cardiovascular, pulmonary, or other contraindications to exercise; 3.Allergic to electrode patches or unable to comply with wearing monitoring devices; 4.Taking medications that may affect sleep or heart rate during the study period; 5.Interruptions in training or injuries affecting data integrity; 6.Refusal to sign informed consent or voluntary withdrawal during the trial.

Design outcomes

Primary

MeasureTime frame
Objective sleep duration;Subjective sleep duration;Nighttime recovery index;Root Mean Square of Successive Differences (RMSSD);—

Secondary

MeasureTime frame
Morning sensation;Morning resting heart rate;Urinary protein concentration;Rating of perceived exertion (RPE);—

Countries

China

Contacts

Public ContactZhiyuan Pan

Beijing Sport University

pzy976937807@163.com+86 183 4009 2073

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026