Effect of low-level laser therapy on muscle performance of young adults

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20200415047097N1

Enrollment

Registered

2020-06-08

Start date

2018-04-02

Completion date

Unknown

Last updated

2020-06-15

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

Conditions

Rehabilitation.

Interventions

Intervention 1: Intervention group: The participants settled in group A due to the block randomization and in the second session, before the exercise, receive one session of the real laser at 810 nm w

Eligibility

Sex/Gender

All

Age

20 Years to 35 Years

Inclusion criteria

Inclusion criteria: Age in the range of 20-35 Being sedentary (no history of regular exercise during the past 3 months) No history of professional sport during the lifetime

Exclusion criteria

Exclusion criteria: Any musculoskeletal disorder prohibiting the use of a treadmill or weight Consuming any drug or supplements Previous history of injury to Quadriceps femoris or Hamstring muscles

Design outcomes

Primary

Measure	Time frame
Level of the blood lactate. Timepoint: At the beginning of the study 3 days before the intervention and in the second session 20 minutes after the intervention. Method of measurement: Lactometer brand ECF (made in Italy) and brand Sensal No 74 lactometer kit (made in China), using a fingertip blood sample. The blood sample was collected by puncturing the fingertip using a lancet brand Ava (made in Iran).;Number of knee extensions with a 10 kg weight. Timepoint: At the beginning of the study 3 days before the intervention and in the second session 5 minutes after the intervention. Method of measurement: Counting the number of complete knee extensions.	—

Measure

Time frame

Level of the blood lactate. Timepoint: At the beginning of the study 3 days before the intervention and in the second session 20 minutes after the intervention. Method of measurement: Lactometer brand ECF (made in Italy) and brand Sensal No 74 lactometer kit (made in China), using a fingertip blood sample. The blood sample was collected by puncturing the fingertip using a lancet brand Ava (made in Iran).;Number of knee extensions with a 10 kg weight. Timepoint: At the beginning of the study 3 days before the intervention and in the second session 5 minutes after the intervention. Method of measurement: Counting the number of complete knee extensions.

—

Secondary

Measure	Time frame
Fatigue. Timepoint: At the beginning of the study 3 days before the intervention and 20 minutes after the intervention in the second session. Method of measurement: Scoring subjectively by the RPE (Rating of Perceived Exertion) scale, from 6 (minimum fatigue) to 20 (exhaustion).;Muscle soreness. Timepoint: 2 days before the intervention (24 hours after the first session exercise) and 24 hours after the intervention. Method of measurement: Scoring subjectively from 1 (the least pain) to 10 (the maximum pain).	—

Measure

Time frame

Fatigue. Timepoint: At the beginning of the study 3 days before the intervention and 20 minutes after the intervention in the second session. Method of measurement: Scoring subjectively by the RPE (Rating of Perceived Exertion) scale, from 6 (minimum fatigue) to 20 (exhaustion).;Muscle soreness. Timepoint: 2 days before the intervention (24 hours after the first session exercise) and 24 hours after the intervention. Method of measurement: Scoring subjectively from 1 (the least pain) to 10 (the maximum pain).

—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactNina Hazegh

Shahid Beheshti University of Medical Sciences

h.anahita64@yahoo.com098 31 32634143

Outcome results

None listed

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