Resisted Training in Runners

NCT06729138 | Completed

• 1 other identifier: PGR0001
• Study Type: interventional
• Target: 80
• Locations: 1 country
• Sites: 1

Brief Summary

INTRODUCTION: Sprint training and resisted sprint training with sled has generated interest in the scientific literature due to its potential to improve performance, different studies have shown that incorporating strength training and sprints into studies have shown that the incorporation of strength and sprint training into the training programmes of long-distance runners can have significant training programmes for long-distance runners can have significant effects on running economy, anaerobic capacity of the runners and the anaerobic capacity of athletes, along with various neuromuscular adaptations. Despite these findings, the application of sprint and resisted sprint training with dragging in middle-distance and long-distance runners has been and long-distance runners has been scarcely studied, with most studies focusing on sprinters and athletes from team sports and sprinters, leaving a gap in the understanding of how these methods can influence distance runners. Along with how the intensity of external external loads affect this type of work and the influence on key kinetic variables such as vertical oscillation, contact time with the oscillation, ground contact time and muscle stiffness in this specific population. PURPOSE: Analyse the effects that sprint training and resisted sprint training can have on running economy, force production, speed and various kinetics variables such as vertical oscillation, contact time, speed and vertical oscillation, ground contact time and muscle stiffness. MATERIAL AND METHODS: A randomised, longitudinal, prospective, blinded, assessor-blinded clinical trial will be conducted. Different variables related to sports performance will be evaluated, such as maximum oxygen consumption, critical power, heart rate variability or kinetic variables, among others. kinetic variables among others. The evaluation will be carried out before the application of the training intervention and after two months. The study will be conducted with runners recruited through athletics clubs in the region of Cadiz, being randomly assigned a system of numerical tables using a computer programme between the sprint group (n=40) and the resisted sprint group (n=40). Both groups will perform two training sessions training sessions for eight weeks, consisting of sprint or resisted sprint repetitions based on the assigned group. KEY WORDS: athletics, runners, resisted training, sprint.

Conditions

Performance Enhancing

Keywords

Runners; Sprint; Performance; Sled training; Track and field

Outcome Measures

Primary Outcomes (10)

• V02 max

  VO2 Max (Maximum Oxygen Consumption) is the maximum amount of oxygen that an individual can utilize during intense or maximal exercise. It is a key indicator of cardiovascular and aerobic fitness, reflecting the capacity of the heart, lungs, and muscles to deliver and use oxygen efficiently. VO2 Max is typically measured in milliliters of oxygen consumed per kilogram of body weight per minute (ml/kg/min). A higher VO2 Max value generally indicates better endurance performance.

  Through study completion, an average of 10 weeks

• Critical Power

  Critical power (CP) is the maximum work intensity that an athlete can maintain consistently over a prolonged period of time.

  Through study completion, an average of 10 weeks

• Jump Height

  This is the height reached in centimetres during the performance of the countermovement jump and the box jump. countermovement jump and jump from the box. Both tests and their respective jumping heights provide valuable information on the explosive and reactive strength capacity of the leg muscles.

  Through study completion, an average of 10 weeks. In each training sesion.

• Heart Rate

  Heart rate is measured in beats per minute (bpm) and is an important indicator of cardiovascular function and exercise intensity. The maximum heart rate is the maximum number of heartbeats the heart can achieve per minute during maximum physical exertion. It is an individual value, although there are different formulas for its calculation, it can vary significantly between trained and untrained individuals or by trained or untrained individuals or for other reasons.

  Through study completion, an average of 10 weeks

• Heart Rate Variability

  Heart Rate Variability (HRV) is the variation in the time intervals between consecutive heartbeats, measured in milliseconds. It reflects the ability of the autonomic nervous system (ANS) to adapt to changing physiological demands by balancing sympathetic ("fight or flight") and parasympathetic ("rest and digest") activity. A higher HRV typically indicates greater cardiovascular and nervous system adaptability, resilience, and recovery, while a lower HRV may signal stress, fatigue, or decreased fitness. HRV is often used as a marker for overall health, recovery, and readiness in both clinical and athletic contexts.

  Through study completion, an average of 10 weeks

• Stride Length

  Stride length is the distance a runner covers with each step during a run. It is measured from the point of contact of one foot to the point of contact of the same foot in the next step. It is a key metric in the biomechanics of running and can significantly influence a runner's performance and efficiency.

  Through study completion, an average of 10 weeks

• Vertical oscillation

  Vertical oscillation in the context of running biomechanics refers to the upward and downward movement of the body's centre of mass during the running cycle. This vertical motion is a natural component of the running movement pattern and It occurs as a result of the complex interaction between momentum forces and gait dynamics.

  Through study completion, an average of 10 weeks

• Contact time

  Contact time in biomechanical running terms refers to the period of time a runner's foot is in contact with the ground during each stride cycle.

  Through study completion, an average of 10 weeks

• Perceived exertion

  Perceived exertion refers to an individual's subjective perception of the intensity or difficulty of a physical activity.

  In each training session through study completion, an average of 10 weeks

• Body Mass Index (BMI)

  Body Mass Index (BMI) is a numerical value calculated by dividing a person's weight in kilograms by the square of their height in meters (kg/m²). It is a widely used screening tool to categorize individuals into weight categories such as underweight, normal weight, overweight, or obese, based on their body composition. Although BMI does not directly measure body fat percentage, it provides a general indication of whether a person's weight is appropriate for their height and is commonly used in public health and clinical settings.

  Through study completion, an average of 10 weeks

Study Arms (2)

Sprint training

ACTIVE COMPARATOR

Other: Sprint Training

Resisted Sprint

EXPERIMENTAL

Other: Resisted Sprint Training

Interventions

Resisted Sprint Training OTHER

In this intervention, participants will perform 16 sessions of resisted sprint training with external loads using a sled over eight weeks. In these 16 sessions the intensity will vary in both the distance to be covered and the load to be moved.

Resisted Sprint

Sprint Training OTHER

In this intervention, participants will perform 16 sessions of sprint training over eight weeks. In these 16 sessions the intensity will vary in the distance.

Sprint training

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• At least 2 years of training experience as a runner.
• Do more than 30 kilometres per week.
• Perform at least 3 training sessions per week.
• Have competed in a 10km race or longer distance in the last 6 months.
• Be between 18 and 35 years old.
• Availability to attend the proposed training sessions.

You may not qualify if:

• Have a musculoskeletal injury or have had a musculoskeletal injury in the 6 months prior to the start of the study.
• Have chronic diseases.
• Have a BMI over 24.9.
• Combine training and competition in other disciplines other than running.

Sponsors & Collaborators

• University of Cadiz: lead

Study Sites (1)

CD Atletismo Bahía de Cádiz

Cadiz, Andalusia, 11012, Spain

Location

MeSH Terms

Interventions

High-Intensity Interval Training

Intervention Hierarchy (Ancestors)

Physical Conditioning, Human; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: QUADRUPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: MSc in Research on Physical Activity and Sport

Study Record Dates

• First Submitted: November 24, 2024
• First Posted: December 11, 2024
• Study Start: April 10, 2025
• Primary Completion: June 30, 2025
• Study Completion: August 31, 2025
• Last Updated: February 23, 2026

Record last verified: 2026-02

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
• Time Frame: All data will be available from the end of the study. And thereafter for a period of 10 years.
• Access Criteria: Access to the data will be granted to all researchers who request it by the appropriate means and always respecting the confidentiality of the participants' data.

Locations

ES (1)