Table 4. Characteristics of the included studies focusing on hamstring tendon. Study Design Randomized Controlled Number of Groups Sample Size (N per Group) Participants Sport Type (s) Age Range / Mean Sex Tendon Involved Outcomes Collected Follow-up Duration (Verma et al., 2022) RCT (2-arm pretest–posttest) Yes Yes 2 (Experimental HPLT; Conventional PT) 18; 18 National-level track & field athletes with PHT Track & field 18–35 yrs (mean ~22.5) Mixed Proximal hamstring tendon NPRS pain, Isokinetic Peak Torque 3 wks HPLT = High Power Laser Therapy; PT: personal training; NPRS = Numeric Pain Rating Scale