Effect of Induced Rotator Cuff Muscles Fatigue on Hand Grip Strength in Adults

Launched by NOURA KARAM ABDOU MOHAMMED ISMAIEL · Jun 27, 2025

Keywords

ClinConnect Summary

This clinical trial is studying how tiring out the rotator cuff muscles—the muscles around your shoulder—might affect the strength of your hand grip. The researchers want to understand if making these shoulder muscles tired has any impact on how strongly adults can squeeze with their hands.

The study is looking for healthy adults between 18 and 30 years old who don’t have any recent shoulder pain or problems, back pain, or past surgeries on their shoulders or spine. Participants also need to have a healthy body weight. If you’ve had any recent injuries or surgeries involving your wrist or hand, or if you have any nerve or muscle issues, you wouldn’t be eligible to join. If you take part, you can expect the researchers to make your shoulder muscles tired in a safe way and then measure how that affects your hand grip strength. This study is not yet recruiting participants, but it aims to help us better understand the connection between shoulder muscle fatigue and hand strength.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Both male and females (18-30) years (Hawkes et al., 2018).
• • No complaints of existing shoulder pathology/pain in at least one shoulder within the last 6 months, no back pain, no history of shoulder/thoracic spine surgery, and no spinal deformities (Aranha et al., 2022).
• • Body mass index between (18.5:24.99) Kg/ m2(Shrestha et al., 2023).
• Exclusion Criteria:
• • Shoulder complaints in the past 6 months such as shoulder dislocation rotator cuff tear, shoulder surgery, and shoulder rehabilitation or other upper limb forms of disability (Ahmadi et al., 2020).
• • Subjects who had wrist pain, a joint injury, undergone surgery, or neuromuscular dysfunction were excluded from the study (Seven et al., 2019).
• • Individuals who suffered an injury or underwent a surgical procedure in the last six months that could affect hand functions or senses (Seven et al., 2024).