Out of 57 possible candidates only 41 joined the study. A total of four subjects were lost during the study from dropout, transfer, or leaving the residency program. The final analysis included data from 37 participants only. Shoulder pain scoring responses among control and intervention is given in Table 1. Among control and intervention, 63 (56.8%) and 48 (43.2%) responses were observed for different severity of shoulder pain (Pain scoring: 1–9) including no pain responses. However, the shoulder pain scoring responses were not different among control and intervention except for 6 months. In 6th month, among control and intervention, 9 (42.9%) and 8 (50%) responded for no pain, 0 (0%) and 5 (31.3%) responded for pain severity score 1, 0 (0%) and 2 (12.5%) responded for pain severity score 2, 3 (14.3%) and 1 (6.3%) responded for pain severity score 3, 3 (14.3%) and 0 (0%) responded for pain severity score 4, 2 (9.5%) and 0 (0%) responded for pain severity score 5 and 6, 1 (4.8%) and 0 (0%) responded for pain severity score 7 and 9, 0 (0%) responded for pain severity score 8 (P < 0.05).
The lower back pain scoring responses among control and intervention are given in Table 2. Among control and intervention, 63 (56.8%) and 48 (43.2%) responses were observed for different severity of lower back pain (Pain scoring: 1–9) including no pain responses. In comparison, 20 (31.7%) and 32 (66.7%) responded with no lower back pain in control and intervention, respectively. Among control and intervention, 4 (6.3%) and 5 (10.4%) responded for pain severity score 1, 9 (14.3%) and 2 (4.2%) responded for pain severity score 2, 4 (6.3%) and 4 (8.3%) responded for pain severity score 3, 5 (7.1%) and 1 (2.1%) responded for pain severity score 4, 8 (12.7%) and 2 (4.2%) responded for pain severity score 5, 9 (14.3%) and 2 (4.2%) responded for pain severity score 6 and 2 (3.2%), 1 (1.6%), 1 (1.6%) responded for pain severity score 7, 8 and 9, respectively for control group (P < 0.01).
The wrist/hand pain scoring responses among males and females are given in Table 3. Among males and females, 75 (67.6%) and 36(32.4%) responses were observed for different severity of wrist/hand pain (Pain scoring: 1–8) including no pain responses. However, overall wrist/hand pain scoring responses showed an increasing trend in males as compared to females (P = 0.07). For pain scoring 2 and 3, only 2 (40%) and 1 (12.5%) responses were observed from females.
The upper back pain scoring responses among males and females are given in Table 4. Among males and females, 75 (67.6%) and 36 (32.4%) responses were observed for different severity of upper back pain (Pain scoring: 1–7) including no pain responses. In the 6th month, upper back pain scoring responses were on trend and higher in males as compared to females (P = 0.09). In comparison, 32 (42.7%) and 26 (72.2%) responded with no upper back pain in males and females, respectively. Among males and females, 10 (13.3%) males responded for pain severity score 1, 15 (20%) and 2 (5.6%) responded for pain severity score 2, 8 (10.7%) and 3 (8.3%) responded for pain severity score 3, 4 (5.3%) and 2 (5.6%) responded for pain severity score 4, 2 (2.7%) and 1 (2.8%) responded for pain severity score 6, 4 (5.3%) and 1 (2.8%) responded for pain severity score 7 and 1 (2.8%) female responded for pain severity score 8 (P < 0.05).
The wrist/hands pain scoring responses among individuals of 58–67 inches and above 68 inches are given in Table 5. Among both, 51 (45.9%) and 60 (54.1%) responses were observed for different severity of wrist/hand pain (Pain scoring: 1–8) including no pain responses. At baseline, wrist/hands pain scoring responses were higher at the trend among 68-up inches people as compared to 58–67 inches people (P = 0.06). Among individuals of height between 58 to 67 inches, 4 (7.8%) responses were observed for pain score 1. Among individuals of 58–67 inches and above 68, 3 (5.9%) and 2 (3.3%) responded for pain score 2, 2 (3.9%) and 6 (10%) responded for pain score 3. Among individuals of height above 68 inches, 5 (8.3%), 6 (10%), 2 (3.3%), and 1 (1.7%) responded to pain scores 4, 6, 7, and 8, respectively (P < 0.01).
Head pain scoring responses among individuals of 100–159 pounds and more than 160 pounds are given in Table 6. Among both, 60 (54.1%) and 51 (45.9%) responses were observed for different severity of head pain (Pain scoring: 1–6) including no pain responses. However, at 3 months and overall head pain scoring responses were trending among individuals of 100–159 pounds and more than 160 pounds (P = 0.07).
Head pain scoring responses among individuals of 58–67 inches and above 68 inches are given in Table 7. Among both, 51 (45.9%) and 60 (54.1%) responses were observed for different severity of head pain (Pain scoring: 1–6) including no pain responses. However, head pain scoring responses were not different among individuals of 58–67 inches and above 68 inches.
Average pain scoring among different treatments, genders, heights and weights are given in Table 8 and Fig. 1. Average pain scoring was higher for head, neck, shoulders, upper and lower back for the control as compare to intervention (P < 0.05). The wrist/hand pain and the lower back average pain scoring was higher among males as compare to females (P < 0.05). For height above 68 inches, the wrist/hand pain and lower back average pain scoring was higher (P < 0.05). However, the upper back average pain scoring also showed increasing trend for the individuals having height above 68 inches (P = 0.06). The head, neck and lower back average pain scoring was higher for the individuals having more than 160 pounds body weight (P < 0.05). However, average pain scoring of shoulders, wrist/hand and upper back also showed increasing trend among individuals of above 160 pounds body weight (P = 0.06–0.08).
Overall average pain scoring among different treatments, genders, weights, and heights is given in Fig. 1. Average pain scoring among different treatments, genders, weights and heights was not different.