# The Effects of Caffeine and Vitamin C on Maximum Strength and Strength Endurance in Adolescents With Mild Mental Fatigue

> **NCT07726745** · NA · NOT_YET_RECRUITING · sponsor: **Yunliang Zhang** · enrollment: 40 (estimated)

## Conditions studied

- Maximum Force
- Strength Endurance
- Mental Fatigue

## Interventions

- **BEHAVIORAL:** 1RM squats and bench presses; repetitions at 65% of 1RM for squats and bench presses

## Key facts

- **NCT ID:** NCT07726745
- **Lead sponsor:** Yunliang Zhang
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** NOT_YET_RECRUITING
- **Start date:** 2026-07-25
- **Primary completion:** 2026-09-20
- **Final completion:** 2026-09-22
- **Target enrollment:** 40 (ESTIMATED)
- **Last updated:** 2026-07-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07726745

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07726745, "The Effects of Caffeine and Vitamin C on Maximum Strength and Strength Endurance in Adolescents With Mild Mental Fatigue". Retrieved via MORVS 2026-10-20 from https://api.morvs.ai/clinical/NCT07726745. Licensed CC0.

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