Musculoskeletal Kinematics and Gait - Biomechanics - Biomedical Engineering Previous Year Questions

1

2020 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2020

A person is sitting in a chair with feet on the ground. While rising up on his feet, the kinematic motion NOT occurring is

A

Hip extension

B

Plantar flexion

C

Hip flexion

D

Knee extension

Open complete paper

2

2020 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2020

A 60 kg person is standing on one foot on a force plate. The ground reaction force is found to act 40 mm anterior to the ankle joint. The mass center of a foot is 60 mm from the Trochanter Knee Ankle (TKA) line. If the weight of the foot is 0.8 kg, the closest value of magnitude of moment acting on the ankle joint is

A

23 Nm

B

48 Nm

C

235 Nm

D

466 Nm

Open complete paper

3

2020 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2020

A person in standing position first flexes the hip by 50° from the initial Trochanter knee ankle (TKA) line and then flexes knee by 20°. The distance of ankle joint from the initial TKA line is __________ (rounded off to nearest integer).
(i) the distance between hip joint and knee joint is 400 mm
(ii) the distance between knee joint and ankle joint is 300 mm.

Check answer

Open complete paper

4

2021 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2021

While comparing parallel fiber and pinnate muscles of a given volume, which of the following statements are TRUE?

A

Pinnate muscles provide more muscle force

B

Parallel fiber muscles provide more muscle force

C

Pinnate muscles facilitate better muscle shortening

D

Parallel fiber muscles facilitate better muscle shortening

Check answer

Open complete paper

5

2022 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2022

Skeletal muscles are recruited to lift loads. If the force generated in the muscle due to contraction is not sufficient to lift the load, it is known as ________ contraction.

A

Isometric

B

Isotonic

C

Isokinetic

D

Isoinertial

Open complete paper

6

2022 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2022

The deltoid muscle connects the humerus to the shoulder blade and facilitates out stretching of the arm as shown in the figure. The humerus is connected to the shoulder blade with a ball and socket joint.
Assume the equivalent weight (W) of the arm to be 30 N and acts vertically down at a horizontal distance of 30 cm.
Assume that the deltoid muscle is connected to the humerus at a distance of 15 cm and makes an average angle of 20° with the horizontal. The magnitude of tension in the deltoid muscle is ________ N.

A

31.9

B

63.8

C

87.7

D

175.4

Open complete paper

7

2023 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2023

Consider the total hip joint prosthesis as shown in the figure. The geometric parameters of the prosthesis are such that \( L_1 = 40 \text{ mm} \), \( L_2 = 60 \text{ mm} \), \( \theta_1 = 45^\circ \), \( \theta_2 = 90^\circ \). Assume that, when standing symmetrically on both feet, a joint reaction force of \( 400 \text{ N} \) is acting vertically at the femoral head (point A) due to the body weight of the subject. Calculate the magnitude of the moment (in Nm) about point C. (Round off the answer to one decimal place.)

Check answer

Open complete paper

8

2024 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2024

A person creates an apparatus as shown in the figure to exercise the extensor muscle of the hand. It is given that OP = 0.15 m, OQ = 0.35 m, \(\theta = 30^\circ\), the weight of the lower arm = 20 N, the center of mass of the lower arm is at point P, the magnitude of the applied tensile force F = 50 N. If the extensor muscle is acting with a moment arm of 0.25 m, the muscle force required to hold the hand at the position shown in the figure is _____ N. Give your answer rounded off to the nearest integer.

Check answer

Open complete paper

9

2025 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2025

Which of the following statement(s) is/are CORRECT about isotonic and isometric tests?

A

In an isotonic test, muscle is subjected to a constant tension and its length is recorded.

B

In an isotonic test, muscle is held at constant length, and the contractile force generated by the muscle is recorded.

C

In an isometric test, muscle is held at constant length, and the contractile force generated by the muscle is recorded.

D

In an isometric test, muscle is subjected to a constant tension and its length is recorded.

Check answer

Open complete paper

10

2026 · Biomedical Engineering · Biomechanics · Musculoskeletal Kinematics and Gait

Biomedical Engineering (BM) 2026

Figure 1 depicts an arm holding a ball in static equilibrium. Figure 2 shows the free-body diagram of the lower arm where \(F\) is the force applied by the biceps muscle at an angle of \(\theta = 60\) degrees with respect to the lower arm, and \(R_1\) and \(R_2\) are the reaction forces acting at point O. The weights of the ball and the lower arm are \(W_1 = 50\) Newtons (N) and \(W_2 = 20\) N, respectively. The force exerted by the biceps muscle is \(F =\) __________ N. (Round off to the nearest integer)
Assume the lower arm to be a rigid body.

Check answer

Open complete paper