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Journal of Sport Medicine, Science and Rehabilitation

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Isotonic Training Enhances Physiological Adaptations in Young Female Athletes: Evidence from a Randomized Controlled Trial
Research Article - Volume: 1, Issue: 1, 2026 (September)
Isotonic Training Enhances Physiological Adaptations in Young Female Athletes: Evidence from a Randomized Controlled Trial Download PDF

Somanpreet Singh1*, Rohit Kumar2, Vikas Sehrawat3, Manoj Kumar Dhadwal4

1,2,3 Department of Physical Education, Central University of Punjab, Bathinda, India
4Assistant Director of Physical Education, Sports Section, Babasaheb Bhimrao Ambedkar University, (Central University) Lucknow, India

*Correspondence to: Somanpreet Singh, Department of Physical Education, Central University of Punjab, Bathinda, India, E-mail:

Received: July 30, 2026; Manuscript No: JSMR-26-7052; Editor Assigned: August 03, 2026; PreQc No: JSMR-26-7052(PQ); Reviewed: August 07, 2026; Revised: August 19, 2026; Manuscript No: JSMR-26-7052(R); Published: September 07, 2026

ABSTRACT

Isotonic training, defined by dynamic muscle contractions under constant tension, is a cornerstone of athletic conditioning, particularly for female athletes seeking to enhance performance while addressing unique physiological needs. This study evaluates the effects of a six-week isotonic training program on key physiological parameters in 120 female athletes aged 21–24 years from sports academies. Participants were randomly assigned to an experimental group, receiving 45-minute training sessions three times weekly, or a control group. Pre- and post-intervention assessments measured resting respiratory rate, vital capacity, resting heart rate, systolic blood pressure, and diastolic blood pressure using standardized tools. Analysis of covariance (ANCOVA) revealed significant improvements in vital capacity (p < 0.001) and resting heart rate (p < 0.001) in the experimental group, indicating enhanced lung function and cardiovascular efficiency. No significant differences were observed in resting respiratory rate (p = 0.122), systolic blood pressure (p = 0.654), or diastolic blood pressure (p = 0.324). These findings underscore the efficacy of isotonic training in improving specific physiological outcomes, providing evidence-based guidance for coaches to optimize training regimens for female athletes .

Keywords: Isotonic Training; Female Athletes; Vital Capacity; Resting Heart Rate; Cardiovascular Fitness; Resistance Exercise; Physiological Adaptations; Sports Performance

Citation: Singh S, Rohit Kumar, Sehrawat V, Dhadwal MK (2026). Isotonic Training Enhances Physiological Adaptations in Young Female Athletes: Evidence from a Randomized Controlled Trial. J. Sport Med. Sci. Rehabil.. Vol.1 Iss.1, September (2026), pp:1-5.
Copyright: © 2026 Somanpreet Singh, Rohit Kumar, Vikas Sehrawat, Manoj Kumar Dhadwal. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.